Overnight Sensations MT Speaker Kit Pair

Brand:| Model: Overnight Sensations MT
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Build your own high-end near-field monitors with the highly regarded Overnight Sensations MT speaker pair kit designed by Paul Carmody. This kit includes nearly everything to build a pair of speakers, including: a pair of knock-down cabinets, drivers, ports, and crossover components.
  • Top rated speaker project
  • Works great as monitors
  • Precision cut CNC cabinets
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Weight: 12.76 lbs.  
List Price$159.99
Regular Price$136.00
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Part # 300-706
Qty:  EA
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Product Details

Overnight Sensations MT Speaker Kit Pair

When Paul Carmody first listened to the Overnight Sensations speakers that he designed he exclaimed, "I wish I had a time machine. I would go back to my bedroom when I was in Jr. High or High School and give these to myself. These are the little bookshelf speakers I imagined I had: huge soundstage, deep bass, and tiny box. In reality, back then all I had were some impish Minimus-7s."

The Overnight Sensations are designed to be a quick, economical build that could put out a surprisingly-big sound in a small box. Could be a weekender project for an addict, a gift for a teenager (see above), or—in Paul's case—a set of small, full-bodied monitors that he could listen to while grading papers.

To start a do-it-yourselfer off right, this kit includes a pair of high-grade 1/2" Baltic birch cabinets that have been precisely CNC cut and rabbeted for perfect fit-and-finish when assembling the cabinet, as well as perfect driver fit.

For the Overnight Sensations' driver arrangement, Paul selected the versatile Dayton Audio ND20FA-6 3/4" neodymium silk dome tweeter and mated it to the attractive HiVi B4N 4" aluminum midbass woofer. To extract as much bass as possible, Paul decided upon a cabinet size of roughly 0.16 cubic feet (4.5 liters) and is tuned to 53 Hz using a 1-3/8" diameter port that is 6" long.

This kit includes nearly everything you need to build a top-notch pair of speakers in no time flat, including: a pair of knock-down cabinets, drivers, ports, and crossover components. Binding posts and speaker wire are not included, but recommendations are featured in the Related Products section on the right.

• Tweeter: Dayton Audio ND20FA-6 3/4" silk dome tweeter
• Midbass woofer: HiVi B4N aluminum midbass woofer
• Power handling: 25 watts RMS/50 watts max
• Frequency response: 45-20,000 Hz (-3 dB)
• Impedance: 8 ohms
• Sensitivity: 83 dB 1W/1m
• Dimensions: 9" H x 6" W x 8-3/8" D

Overnight Sensations MT Speaker Kit Pair includes the following items:
Qty Part # Item
2275-030Dayton Audio ND20FA-6 3/4" Neodymium Dome Tweeter
2004-6Dayton Audio DNR-6.0 6 Ohm 10W Precision Audio Grade Resistor
2004-10Dayton Audio DNR-10 10 Ohm 10W Precision Audio Grade Resistor
2027-402Dayton Audio DMPC-0.22 0.22uF 250V Polypropylene Capacitor
2027-412Dayton Audio DMPC-1.5 1.5uF 250V Polypropylene Capacitor
2027-415Dayton Audio DMPC-2.2 2.2uF 250V Polypropylene Capacitor
2027-424Dayton Audio DMPC-6.8 6.8uF 250V Polypropylene Capacitor
2260-388Speaker Cabinet Port Tube 1-3/8" ID Adjustable
2255-030Jantzen 0.35mH 20 AWG Air Core Inductor Crossover Coil
2255-252Jantzen 1.1mH 18 AWG Air Core Inductor Crossover Coil
2297-429HiVi B4N 4" Aluminum Midbass Round Frame
1999-706Overnight Sensations Cabinet Pair
No substitutions allowed. The above may include some items that are not available for purchase separately.

Product Specifications
  • Cabinet OptionsUnfinished/Unassembled
  • Speaker TypeBookshelf
  • Woofer Diameter4"
  • Input Rating8 ohm
  • Configuration2-way
  • ColorUnfinished
  • Cabinet Dimensions (H x W x D)9" x 6" x 8-3/8"
Overnight Sensations MT Speaker Kit Pair
  • BrandParts Express
  • ModelOvernight Sensations MT
  • Part Number300-706
  • UPC844632098567
  • Product CategorySpeaker Kits
  • Unit of MeasureEA
  • Product Rating
    (48 Reviews)
  • Weight12.76 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Overnight Sensations MT Speaker Kit Pair
Overnight Sensations MT Speaker Kit Pair is rated 4.7917 out of 5 by 48.
Rated 5 out of 5 by from Small Bookshelf Speakers Pack a Big PunchI bought these because I needed small bookshelf speakers to fit in a custom cabinet. These were the perfect size plus they got great reviews so I went for it. Let me tell you right now, these speakers rock! I couldn't be happier! It took me about 3 days from start to finish. I will admit, I've never built speakers before and never soldered so I was a little intimidated by building the crossover.For others that have no experience, have no fear, just follow the video and the wiring diagram. Once you get the general layout from the video, go to the diagram, it's much easier. Then think of each "dot" on the diagram as a metal post you want to tie the connections to. Make sure your soldering iron is clean, or else your solder will not "wet" properly. And the most important thing you can do is to TEST your speakers before you glue the back on. I also decided to put Poly-Fil stuffing into the box because it will keep the wires snug and seems to enhances the bass (I have no data to back this up other than my ears).One of the other great things about these speakers is you can finish them however you want: stain, paint, glaze, antiqued, etc. I've done my share of woodworking in the past so the cabinet assembly and finishing was very straightforward.
Date published: 2014-07-08
Rated 5 out of 5 by from Fun gift for hubby.!My husband is loving this project. I am so pleased.
Date published: 2014-06-30
Rated 5 out of 5 by from Fun Project - Great SoundGot this kit for a desktop system, after reading the reviews, and am very happy! Had a great time putting the boxes together, soldered up the x-over, a little stain, a handful of acoustic fill, and bam. Quality components + great design = excellent sound.
Date published: 2014-06-07
Rated 5 out of 5 by from UPDATE: Can't wipe the smile off my face!!Seriously, if you are reading these reviews and mulling over- just stop and buy the kit and whatever else you need to build them. You can go crazy with all the reviews and audiophile malarky, but these speakers simple sing to you. Music is fun to listen to and believe it or not they sound great paired with that cheap little Lepai 2020 amp.Just do it! Plus you will have a great time building them!
Date published: 2014-05-28
Rated 5 out of 5 by from I want another pair!I bought these to use with my workbench system. I'm impressed with how well they sound for such a small speaker! I now want to build another pair in a MTM configuration for the bedroom. You can't go wrong with these, pretty easy and fun to build.
Date published: 2014-05-22
Rated 5 out of 5 by from Wow! I am blown away by the sound! Really FUN too!This was my first build after getting great advice from the forums. First of all, it arrived in less than 48 hours for free-SWEET!So the build was pretty straight forward. Box requires some sanding to really clean it up, but it goes together very easily.Not wanting to spend $$$ on clamps, I used masking tape to help me hold it together while I glued and then used cargo straps, with foam pipe insulation cut up to pad the corners when cinched up. Worked like a charm and cost me 1.87 for the foam :)The crossover seemed daunting at first, but after pausing the above video at just the right place a few times and finding some photo examples by searching, I was able to get it together fairly easily, but I have to say it is the sloppiest thing I've ever done.I've only ever built models and a few handyman jobs, but never soldered.anyway, I put the whole thing together and patiently waited for the rear panel glue to dry overnight...........WOW!!! I hook these bad boys up and am immediately in shock at how great they sound.And the BASS- the PERFECT speaker for my 10x11 room. The floor shaking bass is unbelievable. Everything sounds crisp, life-like and very authentic on live recordings. And to top it all off, I am proud of how nice they came out and had an absolute blast out in my garage over course of a few days.Do it NOW- spend a few bucks for soldering iron, glue, etc and you will have an AMAZING set of speakers and sense of accomplishment. I've been listening for HOURS and they keep getting better.
Date published: 2014-05-10
Rated 5 out of 5 by from Fun Project - Well worth the journeyIt took many months to see this to the end but it's a fun project that let's you learn a lot about many different aspects of the craft. Well worth the journey.I learned that I can't even put a pre-cut box together straight. That I can't solder worth a darn, and my sanding and finishing skills are adequate at best. BUT I HAD FUN THE WHOLE TIME.I also made the awesome choice of asking my wife to customize my speakers and after discussions we decided on the designs you see. The are a variant of Pakistani Henna (I though it looked cool) and she used a hobby lobby wood burning tool to burn the designs for me. They are the envy of my office and it's a great conversation starter. I get a chance to brag about my awesome wife all the time now :)As for the sound, I'm not really an audiophile but they do good enough for my office with a lepai amp.Look for threads in the forum for information on how to build these as there is a ton of information there.Hope you enjoy.
Date published: 2014-03-26
Rated 5 out of 5 by from Office never sounded betterOne of the best beginner DIY projects, hands down. A ton of fun with the assembly, even more now with them entertaining me at the office. These are a must-have, but be warned: this kit will be the "gateway" into other DIY projects.
Date published: 2014-01-30
Rated 3 out of 5 by from no schematicsThey sent me all of the parts but no schematic for the crossover. What goes in a series and what goes in parallel? Also the ports are variable and I don't know how long to make them.
Date published: 2014-01-23
Rated 5 out of 5 by from Exceeded expectationsWell, it took me a year to get around to it but they're finally done, except for the finish. Bass response and overall sound quality far exceed what I expected from the price and they sound much larger than their actual size. Construction was fairly straightforward although I wish I had consulted the video before assembling the boxes with the backs glued in place and the faces going in last. Plywood had a stain and a couple of dings and voids, but not a big deal at this price. They're for a desk in a room no one sees.
Date published: 2014-01-20
Rated 5 out of 5 by from Excellent sound, fun build.I bought these speakers for my workshop, but they really belong in a listening room. The range is incredible given the size of the cabs and drivers.
Date published: 2013-12-24
Rated 5 out of 5 by from NiceThis was my first speaker project.  The hints in the reviews and forums were very helpful.  I'm very happy with how they turned out, the sound is much more than I expected.  
Date published: 2013-12-09
Rated 5 out of 5 by from Very comparable to my B&W DM 60 S3's at 1/2 the cost.Very fun project!I am always cautious of any review. Is all this hype deserved?Maybe.....My favorite bookshelves are my B&W's. They have almost the same form factor as the OS's. I put them to the test on my good 2 channel stereo powered by Rotel separate components with a Rotel 1072 CD player. I could not choose between the two which I liked better.So for a rather inexpensive learning experience these speakers are worth the money. Word to the wise..if you are buying bar clamps go to Harbor Freight and save yourself a lot of money.Would I buy these again? Definitely yes!Will I sell my B&W's?.... MaybeWill I sell my Overnight Sensations?......NO WAY!
Date published: 2013-10-22
Rated 5 out of 5 by from Read reviews for tips and tricks. Awesome speakers!This was my first build, but I have installed a lot of car stereos in my life. It was my first time building a crossover and the schematic was pretty easy to follow, but if you aren't comfortable with how you have things set up, there are lots of pictures in the reviews, and on the pe forum to make life easy. That being said, I still blew it and mounted the large inductor too close to the woofer and I had to reposition the crossover to make room.Tips:Kit doesn't with poly stuff, screws, glue, or binding posts so make sure you order that stuff with the kit so you don't have to pay extra shipping or wait for stuff to complete your build.Try to keep the crossover compact.Don't use minwax poly shades one step. It isn't one step and birch will not look good unless you are o.k. With spending way more time than a traditional 2 step process.Test the speakers and crossovers before mounting.Buy clamps if you don't have some because you are going to want to build more speakers after you here how good these sound!These replaced some vintage klipsch heresy ones that I had. The klipsch had to go due to a small living room arrangement, and they were not able to fit in a stereo arrangement with our tv any longer. Paired with a subwoofer the overnight sensations are amazing, but even without the extra bass they put out more sound than their small size would suggest. They are not "loud" speakers like the klipsch were and I find myself enjoying my music at lower volumes than I did with the heresys.Overall, I am very happy with how these turned out and recommend buying them as they are as good as all the reviews say they are!
Date published: 2013-09-01
Rated 4 out of 5 by from Sounds great!This sounds cleaner and better than I thought! Very funny to assemble and easy too.Hot- Nice and easy design- Easy to build and you can build them as you like- Sounds very clean and smoothNot- Only 25 watt, what makes them hard to add in a home theatre (works best alone)
Date published: 2013-08-13
Rated 5 out of 5 by from Built as a gift but will be making another ONS for meBuild is pretty easy (with the exception of finishing), a satisfying product when completed due to the absolutely astonishing clarity produced. Following the advice of another listener, the Alice In Chains album really does come alive from these things. A HUGE sound for these small cabinets.The only problem i have with these is that the CNC'd wood is Birch- ply, and does not stain well (even with wood conditioner or "grain popping" as The shermin-Williams man recommended, but he even said that the wood is not a stains best friend) It took 7 coats of Minwax ebony to achieve an acceptable color.
Date published: 2013-07-25
Rated 5 out of 5 by from Worth Every Penny!So first I'll start out with my background. I'm a first year college student on a budget and I've never built any kind of speakers before. I'm a true newbie. Before I purchased this product, I read nearly every review i could find to constitute a good purchase. Out of probably one hundred reviews, I'd say two percent were less than positive. Not negative, just less than positive. There is much to be learned from these reviews and some are even good to reference during your build.Before jumping into this project please take note that it takes a while to build. I finished these in about 4 days (that includes a full weekend) and i worked on them non-stop, sun-up to sun-down. I can assure you that the time spent is well invested once you hold the finished product in your hands. These things sound so great its ridiculous. Take note that I would consider myself musically picky but not quite to the point of a hardcore audiophile. They fit my needs and they fit them exceptionally well. If you're on the hairy edge of making the decision to purchase these, I say do it because you will surely enjoy the entire process.Some things to note that really helped me during my build: If you check out references on Paul Carmody's site (just search "Overnight Sensations MT" in your search engine) and read a couple of the blogs people posted of their build it really helps with the process and with the creativity. Also note that the tweeter is supposed to be connected to the crossover in reverse. Positive to Negative and Negative to Positive. From what I gathered, the reverse polarity works with the second and third degree filters to better line up the midwoofer with the tweeter. Also, unlike the video, I decided to use non-adhesive weather stripping putty to seal the back and screws to keep it in place instead of the glue. I went with this alternative because i wasn't 100% confident with my circuit and wanted to make sure i could get back inside if i needed to.To sum this review up: Get these. They're affordable, sound great, and they're extremely fun to put together! I hope this review helps you in making your decision!
Date published: 2013-07-16
Rated 5 out of 5 by from A MUST HAVE SPEAKER FOR THE PEOPLEMy recent purchase of the Overnight Sensations turned out to be a wonderful experience ,a great sounding desktop or surround speaker.I spent one week in the finishing phase and painting them a burneshed amber color. I would now recommend these speakers to anyone. I listen to mostly electronic music,Tangerine Dream and so on,the crossovers, a little bit of a challenge but thanks to Mike's video they became easy and fun as well!My friends are asking me to build them for themselves.In closing I use Zu Audio interconnects to my mac and Audioquest to my Lepai amp with Mapleshade Matric speaker wire: an amazing sound to hear !!! The tech advise was helpful thanks again Mike and looking forward to my next project,
Date published: 2013-06-30
Rated 5 out of 5 by from These Little Speakers are IncredibleTHIS KIT DOES NOT INCLUDE EVERYTHING YOU NEED. This was not a problem for me, however, because I must have read at least 10 reviews saying the same thing, but it is something to keep in mind if you plan to hole yourself up in your workshop and not leave until they're finished. Many of you may have most of this already, but I will assume that there are people starting with absolutely nothing and hope that they find this list helpful.The list of things you need or may find helpful includes: Soldering iron and solder, a drill (a 5/32 bit allowed the binding posts to screw right in), binding posts, wire strippers, wire cutter and crimpers*, wire terminals* (particularly fork and disconnect terminals), wood glue or superglue, speaker wire, an amplifier, something to hold the circuit (I found a couple free flooring samples from a hardware store will do the trick nicely), zip ties*, hot glue*, wood clamps or a heavy stack of old college textbooks, screws, Plastic Weld or similar epoxy for securing the two halves of the port, sand paper* (lower grits help with coarse adjustment, while higher grits give smooth finish), desired finish (paint, wood-stain, etc.), and AcoustaStuff.Things marked with an * are optional, but I found them necessary for my process. Terminals allow connections between the circuit and speakers/binding posts to connect without solder and I prefer the least destructive methods possible; the disconnects were used for speakers and the forks were used for the binding posts. Crimpers are really only necessary if you choose to use terminals as opposed to soldering the wire to the speakers and binding posts. Zip ties are used (as in the video) to secure the inductors to whatever holds the circuit. Hot glue for gluing all other loose components to the circuit holder. The sandpaper is simply needed for smoothing out overlaps and providing a nice, smooth finish.With that out of the way, the title says it all. Once these were finally wired up and ready to use I was blown away by the sound (not literally, as I prefer a 'moderate' listening volume, which tends to work best with this set of speakers). I found myself hearing instrumentation I'd never before heard in more complexly arranged songs that I had listened to on multiple systems in many different environments over the years, including on other 'modern' monitors, car stereo, headphones of varying quality. The first thing that I really noticed is that frequencies that bordered on grating through other systems are easy to listen to on these. The second thing I noticed was that everything sounds mellow, and not at all in a 'dull' way. I bought these primarily with the intent of using them as monitors for mixing in my home studio, and have yet to use them for a serious mixing job (I will update this review as soon as I have mixed a couple songs on them), however, I have listened over some past mixes that I had thought sounded adequate through other systems and I immediately noticed a lot of small, poor mixing decisions on them that, had I had them at the initial mix stage, I'm confident I wouldn't have made. For instance, low frequency information that I thought sounded decent through headphones and in the car (which, looking back, is a very poor way to gage the quality of a mix, but my similarly-priced monitor set that I had bought from a big company had failed on me due to their poor quality control and the rate of their repairs and shipping on faulty products were so steep that I might as well have bought a new pair) sounded artificial and restrained; this is not the case on professionally mixed songs, which shows me that it is not inherent of the speakers, but rather the restrained mixing environments that I was working in. These speakers are honest and that is a must-have for making better decisions regarding a mix. The main drawbacks I have found are that, after a certain volume is reached low frequency information starts to distort, the amp I got to go with this is only a 20 watt amp and the woofer says that it can handle up to a 50 watt signal without overloading the speaker (I think that's what it means anyway, I have little to no technical knowledge of speakers and circuitry past an intro-level college physics course, I just know what I hear); I think that this primarily has to do with the size of the woofer being only 4 inches, but that is not a problem for the music I listen to at the volume I listen at.I noticed an unpleasant 'boxy' (or buildup of low-mid to mid frequency information) in the speakers before I treated them with the AcoustaStuff I purchased to see if I could tell a difference with and without it. Sure enough, the insulation completely removed that buildup and made them sound a little deeper, which is likely because that giant spike in perceived low-mid frequency information overpowered the low information that was already there; it also helped to tighten some of the lower frequency sounds as well. This may or may not seem like nonsense to you, but I recommend that you spend the extra $10 or $15 for the insulation and test it for yourself. I guarantee that you will opt to put the foam in and that your money will not be wasted (if you so happen to hate what it does for whatever reason, then you can always use it to make an acoustically sound pillow).This took a total of around a day and a half for me to build, most of that time being spent waiting for glue, stains, and epoxy to set. Following the schematic is not difficult either, but may take a few minutes of staring at it hoping to come to a revelation about circuitry if you have no prior experience with it as I did. The simplicity of the schematic coupled with the video that PartsExpress provides makes this an easy project even for someone with no experience with electronics.TL;DR?Pros:Ready-cut cabinets are easy to put togetherEverything is made with precisionArrive beautiful, stain even more beautifullySound is crisp, clear, un-hyped, accurate, and roundCircuit components arrive coupled and clearly markedWould probably cost $500+ if purchased ready-madeCompletely honest speakers, great monitors for home studioCons:Low frequencies seems to overpower the small woofer at high volumesCould go either way:Absolutely no instructions included with shipment which may seem overwhelming for a first project, but I think that highlights there is no single way to approach this and ensures that every construction of this kit will have the personality of the builder ingrained in itA satisfying build, even if these are not the absolute best speakers you have ever heard, simply spending time putting them together makes them worth at least half of the total price
Date published: 2013-06-28
Rated 5 out of 5 by from Cor blimey!Truly excellent quality throughout.Only criticism would be the omission of screws (seems a tiny bit stingy); understand that people have their own preference regarding binding posts though.Produce an exceptionally detailed, solid, expansive sound that fills my man-cave effortlessly - their presence truly belies their diminutive size.Cannibal Corpse has never sounded so good...
Date published: 2013-06-02
Rated 5 out of 5 by from Great first projectThe Overnight Sensations were chosen as my first build, used for a 2.1 nearfield computer setup, 80% music/20% movies and gaming. After a month of ownership, I am extremely satisfied with the quality for the price.First off, do yourself a favor and read the rest of the reviews and Q&A here. There is a lot of useful information provided, especially for those new to DIY like myself.I've included a picture of the crossover layout/wiring that I used, since translating a schematic to a layout can be confusing. I rotated the .35mH coil 90 degrees to minimize any interference, but otherwise I followed the picture exactly. This was my first attempt at soldering, and while not pretty, everything worked on the first try! The crossover components were glued to a piece of Kydex before being glued into the cabinet.Sound quality easily beats the Klipsch WB-14 bookshelf speakers that were replaced, but the OS speakers definitely need to be paired with a subwoofer to shine. Low-end extension and impact is lacking, but that's to be expected from a 4" woofer. The OS can sound congested during complicated musical passages, but at this price we're getting nit-picky.Overall, a fun and fairly easy entry-level project, resulting in great speakers for the price. If you need small speakers that will be paired with a sub and want to keep the budget low, I wouldn't hesitate in recommending the Overnight Sensations.Additional items purchased:Stahl Tools SSVT Variable Temperature Soldering Station, Part #: 374-100Binding Post with 1" Thread 2 Pair, Part #: 091-1250Acousta-Stuf Polyfill 1 lb. Bag, Part #: 260-317#6 x 3/4" Deep Thread Pan Head Screws Black 100 Pcs., Part #: 081-435Kester Pocket Pack Solder 60/40 0.031" 0.50 oz. Tube, Part Number: 370-050Items also used, but already owned:Hot Glue GunSmall DrillSandpaperSpeaker Wire (about 8' used internally)Wood GlueClampsWire CuttersWire StrippersBlu-Tak caulk (for ports)Kydex (for mounting crossovers on, but something as simple as a piece of cardboard supposedly works)
Date published: 2013-05-28
Rated 5 out of 5 by from Pleasantly SurprisedI'm impressed with the sound out of these little speakers. Very easy build with quality components. Match well with my topping tp-21. Smooth clean sound. Only recommendation would be to add a printed circuit board for the crossover build, but that might make it too easy of a build.
Date published: 2013-05-11
Rated 4 out of 5 by from Fair is allI bought the OS flat pack kit after reading about Paul's design on the Tech Talk Forums.The kit is great, I am in love, but there are some caveats.First the bad;The flat packs are horrific. They where packed with front baffle on top of the other 5 pieces of wood, which allowed them to "eat" all of the poor handling. There was no where near enough shrink wrap on them. One of the baffles has a 1" chip about 1/8" deep on the bottom left.The other baffle had a divot in about the same area.There are multiple splinters on the speaker cutouts that look terrible, even after some finishing.The CNC cuts are off. So even after spending 20 min lining up the boxes in the clamps, there is still overhang. It is minimal, but very noticeable.The good;After breaking them in, they sound great. I am using them at work with a Topping TP-30. I had been using the Dayton BR-1's. The Overnight Sensation blows them away hands down. They sound fabulous in the office at a lower volume.Not much bass. Which is okay, since they are smaller, and I am in an office. But you might want a sub in a larger area.Assembly was, for a novice, easy. I had never built a speaker from flat-pack. It was fun, and took a few days. Most of that was letting the finish work its magic.Overall, I am impressed with the sound, but the flat packs turned me off.If I do it again, I will beg, borrow, steal a friend, and some tools and buy a sheet of MDF.
Date published: 2013-05-01
Rated 5 out of 5 by from Amazing sound from such a little package!After reading and re-reading the reviews for this I finally decided and pulled the trigger on this...I was not disappointed in the slightest. I setup them up on my dining room table and connected my iPhone to them.... WOW... I nearly had an "eargasim"!! I could not believe the soundstage and the presence of these little speakers. They are best used as a near field setup as they do not have the body to fill a large room, BUT they certainly try.Along with this kit I ordered a set of binding posts(Part #: 091-1250), Acousta-Stuf(Part #: 260-317), Wired Home SKRL-16-50 16 AWG OFC Speaker Wire 50 ft. (Part #: 100-016), and finally a Dayton Audio DTA-100a Class-T Digital Mini Amplifier 50 WPC (Part #: 300-383).I built the cross overs on 3" x 4" by 1/4" MDF and hot glued them on the bottom of that cabinets. I finished the cabinets with a few coats of rattle can primer, and 3 coats of Krylon high gloss white.They currently are being employed as my "studio" monitors for my music studio. To help their clarity I have them sitting atop Auralex's Monitor Isolation Pads (sorry, I didn't get these from PE). I few friends cannot believe that these little speakers are producing the rich full flat response that these little guy are.Bottom line..... if you need a small form factor speaker that doesn't know it's a "small form factor speaker".... do not hesitate!
Date published: 2013-03-26
Rated 5 out of 5 by from Small Bass speakerGood bass for a small speaker. Good sound overall. I like the birch pack, I stained and come out beautiful. For the money you cant go wrong. If you are a beginner in diy speaker, don't think again and hit buy button now ;)
Date published: 2013-03-25
Rated 5 out of 5 by from Far better than the price tag would suggestI purchased the Overnight Sensations MT kit with the BPGS-25G binding posts, some acousta-stuff, and some screws from parts express. It got to my door in about five days, and everything was packed well.The MDF was in great condition, although one of the front baffle pieces had some chips in it. My guess is it split at one point and got glued together. No problem though, they're still beautiful.It took an afternoon to build the kit, and I did reference the video a few times, but mostly just the crossover schematic. I actually used some small pieces of cardboard from the box everything came in to put the crossover on, and it glued into the cabinet nicely. Everything is pretty self explanatory. Let me just say, the parts in this kit are top notch. From the crossover components, to the drivers.A quick word on the drivers - the Hivi's SCREAM quality. They're good and heavy, shielded, and the bronze finish on the front is great. They do come with some gaskets, although they are flimsy, they do replace the need for speaker caulk (the video also suggests using caulk on the port tubes, but I found some normal plumbers caulk worked fine). The tweeters don't scream quality like the B4N's do, but they sound fantastic regardless (more on that below).Anyway, the cabinets glued together nicely and everything fit together perfectly. They do benefit from being sanded. I used 180 grit first, and then took a 1/4 sheet sander to it with around 250 grit paper to get all of the minor uneven edges out. It also really helps to balance out the bottom, for whatever that's worth. I did stain the wood, as you can see in the pictures, and it absorbed the stain much better than I thought it would. Then I covered it with some spray varnish. I didn't end up gluing in the back pieces. They fit very snug as-is, and with some screws in the top, I'm pretty certain the cabinet is air-tight. After a couple hours of waiting, I was able to install the driver's and plug them in.Firstly, I initially drove them with a Lepai LP-2020A. They sounded fine, great actually, but after I plugged them into a proper receiver, I was truly blown away (point is, I don't think you'll get the best these have to offer with a $20 T-amp). The soundstage is unreal. I use them as monitors on my desk, and the sound much wider than their spacing would suggest. Instrument separation is great, and songs with big bands (another reviewer mentioned Michael Buble's Feeling Good) and it's incredible. I suck at writing audio reviews, so let me just say, these are awesome. They have no business having the low end that they do. I don't have a need for a sub on my desk for the most part, and even with that nice, tight, rumbly bass, the mids and the highs sound great, full, warm, sparkly, all that stuff.I can say that for the $150 bucks or so this kit cost with the posts and stuffing, there is no better speakers you can buy. I will definitely be building some more Paul Carmody designs in the future.
Date published: 2013-03-17
Rated 5 out of 5 by from Sounds Great!These were my first attempt at speaker building. They went together very quickly. Some of the CNC cuts were not perfect but a little sanding fixed them right up. I bought the two-way crossover board from PE and soldered all the components to them. I did apply a cherry veneer to the cabinets and two coats of wipe on poly.They sound very good to my ears. I do not think of myself as an audiophile. Just an average listener. I plugged them into my surround sound receiver front channel. I played Rush's Moving Pictures cd and it never sounded better.
Date published: 2013-03-09
Rated 5 out of 5 by from Great little speakerLet me start by saying I am pretty amazed by these little things. I had been wanting to get into DIY building for a while. I've been doing a lot of reading and mock designing but figured I would start with this kit, just to see what you could get for a low cost investment. At the time, I had a pair of Paradigm Mini Monitors v.2 in my bedroom powered off a NAD C316BEE. I bought these used, but the original price was around $300-$350. Once I put the Overnight sensations together, it was easily clear that they were superior to the Paradigms. The midrange sounds much less congested and everthing is just smoother and clearer overall. The only area that the Paradigms beat these in is bass respose, but remember that the Paradigms use a 6.5" woofer and I'm pretty sure that the bass is a little turned up on them.I am really surprised what you get for the price in these speakers. I have a much more expensive pair of speakers in the living room (B&W CM7) and while they definitely sound better, I could easily live with the Overnight Sensations. This was not the case with the Paradigms. They sounded OK, but I never really cared too much for them.As far as features go, you have pretty much everything you need here. I wish there was an option to just add binding posts on this page, rather than having to go to a separate page to order them. It could just be a drop down menu. This is not a big deal, but it would be helpful. I added some poly fill to mine, probably medium stuffing, and it improved the bass a little bit.If you want the cabinets to turn out very square, you need to use lots of clamps (at least 4) when putting these together. Otherwise you will end up with some out of alignment edges. I did have two pieces that had knot holes filled on mine, but the were on the inside of one and on the back piece for another. Since the back piece had no dato edge it could just be flipped around toward the inside of the box.I ended up using some body filler and then primed and painted these with gloss Rustoleum paint. I used Gloss Almond and mixed in a small amount of Gloss White to lighten the color some. I then wet sanded and polished them to a high gloss. When I was tested the crossovers to make sure everything was assembled correctly (before paint), they kind of reminded me of a cream colored gold top Gibson guitar. That was my inspiration for the paint.One thing to be aware of, especially if you are painting the way I did, the second piece of the port tube did not fit through the hole that was cut. I had to put it on through the speaker hole, which was kind of a pain in the butt. Other than that, all of the assembly was a breeze. If you are staining or doing a simple paint job like textured gray, you can have these finished in a day.Overall, these are a great first build for someone wanting to see what you can get for the money in DIY audio. I am really surprised that $125 (as of writing this rewview) easily beat my $300 Paradigms. I would say these speakers are on par with stuff I have heard costing over $500 in audio stores. I am really curious now about the more expensive DIY builds and how high the performance can go.
Date published: 2013-03-08
Rated 5 out of 5 by from The little driver that could"Overnight Sensations" are the perfect 1st DIY speaker project. No woodworking skills or woodworking tools? No problem. All that is needed to build the enclosure are some clamps, wood glue, and sandpaper. Unlike the video, I assembled the entire enclosure and made certain that I could fit the crossover network through the woofer hole. This made finishing the enclosure easier.So how do the finished speakers sound? Incredible! I'm very, very pleased with the sound quality of the final product. I'm using them as near-field computer speakers with a Lepai T-Amp with them placed just 12" from a wall and find them to have sufficient bass response to make a subwoofer unnecessary.I also did some testing with a vintage Amber Model 70 amplifier and found them to really shine in a medium size room when played at louder volumes. Keep in mind, these are not capable of being played at rock concert levels, however, they have a remarkable full sound given the right program material. The real magic appears to be in the crossover design that allows these "beer budget" drivers to really perform to their maximum.Bravo to the speaker designer, Paul Carmody, for sharing such an incredible, affordable speaker design.One last point, be sure to pay close attention to the polarity of the tweeter on the crossover design. The tweeter needs to be wired out of phase of the woofer for the speaker to work correctly.
Date published: 2013-02-13
Rated 5 out of 5 by from I Love My Overnight Sensations!Oh man! I love my Overnight Sensations. They were a Christmas present from my brother. It took me a couple of weeks to put together. Painted them with Krylon Fusion “Red Pepper”. They look really nice. Pretty much used the stock kit, with the exception of the non-polar electrolytic 6.8 uF cap. I used an Audyn Q4 instead. Used 1/8” pine boards from an Arts and Craft store for the crossover boards. I would suggest fully testing the speakers before gluing all the boxes together. Because once everything is glued and clamped you will never get them apart again!They sound quite good, although they need a few days to break in. I thought they were sort of bass shy at first, until they opened up. During the summer I built a pair of speakers with the Dayton Reference series tweeter and the Hi VI 8” M8N woofer, and the Overnight Sensations sound ALMOST as good. They sound their best when paired with a medium powered amplifier. At first I had them hooked up to a small 10 watt per side home-brew tube amplifier and I was not that impressed. They do much better with 40 or 50 watts per channel.
Date published: 2013-01-14

Product Q&A

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Overnight Sensations MT Speaker Kit Pair

I recently got these and have just assembled the crossover to what I think is correct (after looking at similar online pictures). However upon testing, the sound is limited, but it seems that the low/high pass filters work. Has anyone had this problem?

Asked by: engsbro
I would recommend contacting our tech support for help with this. It may be best to email detailed pictures of the crossovers to tech@parts-express.com.
Answered by: MattP
Date published: 2014-06-12

So if I buy two pair, can I use them as front left and right, and rear left and right, as part of a full 5.1 surround system? I would still need a center channel and woofer, but would this be a good starting point?

Asked by: dkline201
This speaker would be an excellent start to a home theater system
Answered by: Chrisf
Date published: 2014-06-03

What is the approx. frequency at which this crossover operaters? I'd like more info generally about how to select tweeters + crossover frequency. Thanks

Asked by: SpinCycle
The crossover point in this design is roughly 4,200 Hz. I would suggest a book we sell called Speaker Building 201 which you can see below.http://www.parts-express.com/speaker-building-201-book--500-044
Answered by: MattP
Date published: 2014-05-14

Where exactly do I drill holes for binding posts on rear so I can use banana plugs? Is there a step by step guide anywhere to assembling crossover? In the video, it blows right by it. Thanks!

Asked by: johnnynono
You can drill them anywhere you would like as long as they don't interfere with the crossover placement. Unfortunately the video and schematic are the only resources we have for the crossover construction.
Answered by: MattP
Date published: 2014-05-08

Can the rear panel be screwed/bolted on instead of glue for future access? (without building custom box myself?)

Asked by: johnnynono
Yes the back panel can be removable as long as it is air tight with the cabinet.
Answered by: MattP
Date published: 2014-05-05

Can I relocate the port tube to front of the cabinet next to tweeter?

Asked by:
If the port tube will fit in this location that would not be a problem.
Answered by: MattP
Date published: 2014-04-21

What kind of wiring should I use to connect the components on the crossover? Would tinned speaker wire work, or do I need some other kind of electrical wire?

Asked by: paxson
Yes regular speaker wire will be fine, 18-20 gauge will be plenty.
Answered by: MattP
Date published: 2014-04-02

What is the shipping dimensions for this? Need to ship International.

Asked by: hannielhrach
Please contact our customer service department for an answer to this question. 800-338-0531 x2 or sales@parts-express.com
Answered by: MattP
Date published: 2014-02-05

Does parts-express sell a crossover PC board that the crossover components from this kit could be installed onto? If not, what material would I be looking to buy to make these myself? First speaker build here... Thanks.

Asked by: kevinleo86
Unfortunately we do not have a crossover board that will accommodate all of the parts in this design. I recommend simply hot gluing the pieces to a small piece of cardboard instead.
Answered by: MattP
Date published: 2014-02-03

I have a 2 ch amp going to the high inputs of a powered sub and the high outputs going to the os's. Will the xo on the os "pybass" the built it xo in the sub (if it has one?) when hooked up to the high inputs on a powered sub?

Asked by: danger
I'm not sure I completely understand the question, although the crossovers in the OS kit will not be affected by any type of high-pass filter (assuming there is one) on the speaker level output of the subwoofer.
Answered by: MattP
Date published: 2013-12-11

What's the minimum recommended power..

Would these work as external speakers for my TV. I believe the TV puts out 7 or 10 watts.
Asked by: JackZ
There really is no minimum recommended power for these. They aren't the most efficient speakers in the world but 7-10 watts should be plenty assuming the TV has a powered speaker level output.
Answered by: MattP
Date published: 2013-10-17

Home studio reference monitors

would you recommend these for use in a home recording studio? If not, please explain.
Asked by: strander
Although I prefer speakers that allow more power, I think these would work well in a small home studio.
Answered by: Nitnub
Date published: 2013-08-22

How much will the sound change if I put a 2x25 watt sure amp inside

This will be my first official kit build. i want to put a 2x25 watt sure amplifier board inside, then i will wire in a panel mount dc jack, and a rca jack. i am basically trying to a achieve powered monitors. the power supply will be external.**I realize this will change the internal volume of one speaker enclosure. Does anyone have an opinion about if I will even notice the difference in sound? Any thoughts welcomed :)
Asked by: Grenadineflaps
It is highly unlikely that you will hear a difference or cause a big enough change in volume to matter.
Answered by: MattP
Date published: 2013-07-30

Sealed for use with sub?

Any changes in crossover?Ideal cab volume?Is the driver appropriate for sealed?
Asked by: frascati
These would not have to be sealed if you wanted to use them with a sub although they will work either way. I would recommend 0.08 cubic feet if you wanted to go sealed. The crossover will not have to be changed as long as the baffle of the speaker shares the same dimensions as the kit.
Answered by: MattP
Date published: 2013-07-09

Crossover Boards

Can the crossovers be assembled on the 2-way boards offered on the website (260-130)?
Asked by: kdtang80
Unfortunately no, the Overnight Sensations crossover uses a second order filter on the woofer and a third order on the tweeter which will not fit on this board.
Answered by: MattP
Date published: 2013-04-29

Good Subwoofer For these?

I am wondering if anyone knows of a good sub to buy/build that would pair nicely with these at a reasonable price. Thanks! :)
Asked by: RubberDucky
Our Dayton power subwoofers are very popular choices for these. We have three different models, the Sub-800, Sub-1000 and Sub-1200.
Answered by: MattP
Date published: 2013-03-15

How would these compare to the Dayton B652s?

I just purchased this kit to replace my Dayton B652's. Does anyone here have experience with both to give me a clue of what to expect.I'm hoping these will be a huge step up in terms of mid-bass and soundstage, and hopefully detail and "musicality" if that makes any sense. Anyone have any thoughts?Thanks so much in advance!
Asked by: Parker E
These should surpass the B652's in basically every catagory. The B652's are a nice speaker for the price although this DIY kit is much better designed from the ground up.
Answered by: MattP
Date published: 2013-03-02

Screw size?

What size screws? Am building the the better MTM version and no where, from PE, other builders, or from Hi-Vi do they state what is the size of the screw holes are for the HiVi B4N aluminum midbass woofer. Do not want to screw wood screws in the the MDF, wanting to use the more common and better threaded screws with T-nuts. Thanks
Asked by: Kknight
The best size screw for this design is #6.
Answered by: MattP
Date published: 2013-02-22

speaker caulk ?

The video shows or says actually, to caulk the woofer. So, I bought 72' of speaker caulk to do it right and to have 70 plus feet for future builds, I should live so long.Anyway, the woofers come with a gasket of sorts, not sure just what it is and what it's for.Should I only use that for this project or the caulk, or both?????Anyone need some caulk?
Asked by: bigpix
The gaskets that come with the woofers are all you need, no additional sealing is necessary.
Answered by: MattP
Date published: 2013-02-20

tweeter sound?

A big duh question here from a total newb. I am putting my crossovers together and wanted to test before installing. Somewhere along in internet research on this crossover build it was suggested to test with a 1.5V battery if one was worried about damage. So, that is what I did. But, I don't hear a pop or any sound out of the tweeters.So, I wire them up to a small amp and all I seem to hear is very high end sounds. Nothing "musical" if you know what I mean. If I only have tweeters connected I don't hear music but just some sounds.Woofers sound just fine. Plus, the volume from the tweeters is way down. Same on both set ups. Is this what to be expected or have I messed up my crossover wiring?I don't want to put them in the cabinets and such until I know they are right on.Thanks in advance.
Asked by: bigpix
You generally won't hear a pop from a tweeter with this test. 1.5 volts DC directly into many tweeters can damage voice coils. The best way to test a tweeter is simply to hook it up in the design and verify it works unless you have test equipment and a proper high pass filter on the tweeter itself. If you have the tweeters wired directly to an amplifier with no protection from low frequencies they are very suseptible to damage and they will sound much quieter than a woofer at the same volume level. 80% of the sound you hear comes from the woofer/midrange, the rest is harmonics and sibilance from the tweeter. I recommend getting the whole crossover together as the schematic shows and see how it sounds. Listening to tweeters alone will most definitely raise question if you are not too familiar with speaker design.
Answered by: MattP
Date published: 2013-02-19

Pair these with low power tube amp?

Due to the low sensitivity of the Overnight Sensations, could one still power these with an integrated tube amp like the Miniwatt N3 which is only rated at 3.5 watts per channel?
Asked by: Marksas
Big amp or not, these speakers won't rock the walls... They are designed to sound really good within a reasonable volume level. And with a tube amp - and the high current it has which transistor amps rarely have - it will make these sing like beautiful music. You will hear a 3D sound stage and air unlike you can imagine.
Answered by: MarkAJH
Date published: 2013-01-30

Different 10-ohm resistor than shown

I received the Overnight Sensation shipment and one of the resistors (the 10 ohm) is now a "Mills 10 ohm 12W non-inductive resistor. Assuming this is intentional, what is the reason that the resistor changed?
Asked by: Soundman43
As the resistors only need to be same by specifications or better it doesn't matter what make or how they look. One of the reasons that they are different could be that they are out of stock of that particular or that they changed to a other supplier. Companies usually have several sources and if for some reason they can't get their usual products they can supply alternative without any quality effect. Many times if question is out of stock item the provided product might be more expensive or higher value in Watts this time. Over all it is just cosmetics without any other effect.
Answered by: PasiPT
Date published: 2012-12-10

Tweeter polarity

In the crossover diagram it shows the tweeter "-" connection on the top. Is this correct, or is it mis-labelled and it should be "+"?
Asked by: Delongacre
Yes the tweeter is wired in reverse polarity, so "+" goes to "-" and "-" goes to "+".
Answered by: MattP
Date published: 2014-06-10

As computer speakers, how would these, in combination with the Topping TP30 with USB input, compare with the Behringer MS40's with Toslink input?

Asked by: manniesm
The Behringer is a good product - the Topping / Overnight combo is more money and has better components. It's not truly a fair comparison. I think it comes down to whether you want a powered speaker, or components which can ultimately offer you more versatility. The Overnight speaker is very good, and while the Topping may be a good choice for this amp application - later you could use a larger, better amp and truly experience the potential of the Overnights... The Behringer will never be anything more than its designed purpose.
Answered by: MarkAJH
Date published: 2012-09-28


There wasn't any absorbing material stuffed into the cabinet. By design??
Asked by: manniesm
It isn't included in the kit. Depending on how far you want to go with the project, I would apply sound deadening to the inner cabinet walls and then very lightly fill with polyfill.
Answered by: MarkAJH
Date published: 2012-09-02

Which Topping amp?

I am planning to pair these speakers with one of the Topping amps. The input will be from a Squezebox, which has a Burr-Brown DAC. So all I need is the amp with enough clean power to drive the OS speakers.
Asked by: bookmatch
I personally would want at least 30 watts of clean power for these, and would be happier with 50. They are rather low sensitivity so more juice would be required to liven them up. And from what I have read about them, this seems to be true.
Answered by: GingerDude
Date published: 2012-08-07

Prebuilt crossover option?

What is the best pre-built crossover to go with these speakers? (as opposed to assembling it from the parts provided)
Asked by: Andrew12345
Call Parts Express at 800-338-0531 for information about having your crossovers pre-assembled and shipped with your kit purchase. The components are chosen and designed for this model. A generic crossover would likely be less effective than the parts included.
Answered by: bikermike
Date published: 2012-09-02

Do these sound good in different listener spots in the same room?

This looks ideal for my needs, which are to get decent sound into a 15 x 18' living room and adjacent 14 x 12 dining area. One thing though that concerns me is the description of the OSs as "near field monitors", which to me implies speakers meant to be listened to from very close, and which often have a tiny sweet spot. For example, I own a pair of Samson Media One 4a monitors, which sound pretty good when I am equidistant from them, but moving even a foot or two to one side sharply degrades the sound and soundstage.So, are the Overnight Sensations adequate for music listening in a room where I'd be sitting in various places? Thanks for any advice.
Asked by: bookmatch
That's a complex question. If you are designing an audiophile system - you'll carefully place your speakers in the perfect spot in the room - looks and furniture layout be damned - and then place your favorite chair in the perfect position with no concern for family or friends. At the other end - when you go to a public place - look a the ceiling - the speakers are almost placed like sprinklers to evenly distribute audio like watering a lawn. So if you want to have background music all around your room - you need 4 in ceilings in the living, and 2 in the dining. Or you could put a 5.1 surround in the living room with your TV and the spill over into the dining would be fine. But - will a 4" 2-way sound the same everywhere in that environment - no. It's not possible.
Answered by: MarkAJH
Date published: 2012-09-02

Use a different tweeter

If I were to use the Hivi T20 tweeter instead of the Dayton, would I need to change the crossover or anything else?
Asked by: Danconway327
If you download the specs for both drivers - you can determine size-wise if there is a different cutout for the cabinets. If the impedance, efficiency and low end frequency response are the same - then no changes in crossover. The low end must be comparable. If the impedance is different, you need to change several components and if the driver is more or less efficient - you'll have to add components to balance the woofer to the tweeter. As a novice - if would be easier to pick a PE cabinet, the woofer and tweeter of your desire and then build a simple 6db/oct crossover.
Answered by: MarkAJH
Date published: 2012-06-18

Hw long should port tube be?

At 6:40 in the video, Mike V discusses installing the port tube and adjusting its length -- but, he never says what that length is. I have not been able to find what the port tube length should be elsewhere in the sparse Overnight Sensations documentation.
Asked by: Cramex
Paul decided upon a cabinet size of roughly 0.16 cubic feet (4.5 liters) and is tuned to 53 Hz using a 1-3/8" diameter port that is 6" long.
Answered by: bikermike
Date published: 2012-06-11


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