Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm

Brand:| Model: RSS390HF-4
Engineered to provide high-volume, low-distortion bass in larger rooms and other highly demanding applications, the Dayton Audio RSS390HF-4 15" Reference Series subwoofer speaker offers the perfect combination of high definition sound quality and low frequency impact.
  • Extensively vented motor eliminates compression and allows quiet excursion
  • Lightweight black anodized aluminum cone for rigidity and lower moving mass
  • Triple shorting ring motor for ultra-low distortion
  • 2-layer coil for reduced back EMF
  • Suitable for sealed or vented enclosures
  • Highest quality materials throughout for long-lasting performance
Part # 
Weight: 30 lbs.  
List Price$224.99
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Part # 295-468
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Product Details

Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm

The Dayton Audio Reference Series RSS390HF-4 15" speakers take the quality and performance of the much acclaimed RS line into the subwoofer realm. As with the rest of the Reference Series, the main focus of these subwoofers is ultra-low-distortion. Second, third, and intemodulation distortion are kept extremely low by utilizing three magnetic short-circuit paths within the motor structure. A durable aramid fiber spider and extensive venting throughout provide quiet and uniform excursion. The black anodized cone, rubber surround, and custom basket give this driver a unique, high-end look. Choose the high fidelity version for home systems when you are looking for clean, low bass and are not restricted by cabinet size.

Product Specifications
  • Nominal Diameter15"
  • Power Handling (RMS)500 Watts
  • Power Handling (max)1000 Watts
  • Impedance4 ohms
  • Frequency Response18 to 800 Hz
  • Sensitivity91.2 dB 2.83V/1m
  • Voice Coil Diameter2.5"
  • Magnet Weight150 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)19.5 Hz
  • DC Resistance (Re)3 ohms
  • Voice Coil Inductance (Le)0.92 mH
  • Mechanical Q (Qms)3.02
  • Electromagnetic Q (Qes)0.50
  • Total Q (Qts)0.43
  • Compliance Equivalent Volume (Vas)7.49 ft.³
  • Mechanical Compliance of Suspension (Cms)0.22 mm/N
  • BL Product (BL)15 Tm
  • Diaphragm Mass Inc. Airload (Mms)306g
  • Maximum Linear Excursion (Xmax)14 mm
  • Surface Area of Cone (Sd)829.6 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter15.29"
  • Baffle Cutout Diameter14.01"
  • Depth7.01"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume2.88 ft.³
  • Sealed F337 Hz
  • Vented Volume8.96 ft.³
  • Vented F321 Hz
Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm
  • BrandDayton Audio
  • ModelRSS390HF-4
  • Part Number295-468
  • UPC844632055027
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (47 Reviews)
  • Weight30 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.

View similar products to the Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm
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Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm
Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm is rated 4.7872 out of 5 by 47.
Rated 5 out of 5 by from Great Sub & it can go LOWWWW!!!I have a Brian Cheney Limited Edition VSS Sub from VMPS The old wooferdeveloped a rattle. I replaced that driver with the rss390-hf and I could not be happier! I Also replaced the Big Bump Passive Radiator at the same time with a TC Sounds PR. Great combination!
Date published: 2014-03-03
Rated 5 out of 5 by from Another 5-Star ReviewI have a pair of these in 3.7 cu ft unported cabinets as recommended by PE tech support. I could not be happier with the sound. Smooth yet tight and as powerful as you need them to be. I have them crossed over at 125hz via Crown XLS amps which transitions seamlessly to my Beyma 15" Coaxials. Would absolutely not hesitate to buy again.
Date published: 2014-01-08
Rated 5 out of 5 by from Clean, Deep, Tight BassBuilt a 3.2 cubic ft box for this monster, gives deep, smooth room filling bass with ease
Date published: 2013-08-12
Rated 5 out of 5 by from Best subwoofer for the moneyWith this sub you can obtain an extremely pleasent bass extention. It has a really soldi construction and has features that only drivers costing double as much have. I've built a 135Lt closet enclosure around it, Absolutely reccomended.
Date published: 2013-08-06
Rated 5 out of 5 by from CLEAN POWERFUL SUBSI have two of these installed in 5.5 cuft. sealed boxes for my home audio sound system. They're driven by a Crown Audio XLS1500 amp & offer outstanding power,depth & tone toall forms of music. Also, they sound extremely clean.I'm very pleased w/my purchase.
Date published: 2013-07-17
Rated 5 out of 5 by from Amazing bass, horrible mounting.Short and sweet. This is an amazing speaker. Not just for the price, but just amazing period. The only problem it the mounting. Even making the cut out as tight as humanly possible, the screws have almost nothing to attach to. And this speaker really needs something to attach to. Not sure others opinions about this.
Date published: 2013-02-20
Rated 5 out of 5 by from Awesome SubwooferBought the RSS390HF-4 to replace a RSS390HO-4 I had installed in a tapered quarter-wave transmission line (TQTL) enclosure I built several years ago. While the HO had worked fine, I subsequently came across enclosure design information on www.quarter-wave.com which showed that its T/S parameters were not a good match for my enclosure, which is 9 cu. ft., 0.2 taper from open end to closed end, and 130 in. line length----which resonates at 17 Hz. The HF is a near perfect match and the results are amazing. Haven't done SPL measurements yet, but its LF output obviously goes well below the HO, as indicated by its Fs of 18 Hz vs. 24.2 Hz for the HO. LF output is also much cleaner / tighter with the HF. Just hoping that the SA1000 amp I am driving it with will not overload it on heavy LFE passages. Time will tell, but so far, so good..............
Date published: 2013-01-03
Rated 4 out of 5 by from Carried it back to OZHaven't got around to installing it yet but a big thankyou to couriering it to my hotel so I could bring it back to OZ. Customs in US decided to inspect it, no problems, will report on performance when I get back!
Date published: 2012-07-16
Rated 5 out of 5 by from ''bottom feeder''this sub loves the low end. very good SQ. i think it sounds better in a vented box, i have it in a 5.5 cu. ft. box with a 3'' id x 6'' long non flared port. shakes everything. all in all great sub for the money
Date published: 2012-07-13
Rated 5 out of 5 by from Amazing in folded hornI chose this driver for my Bill Fitzmaurice Tuba HT folded horn sub and I couldn't be happier with the result. With only a 200W amp, it produces more output than we could ever want in our home theater.
Date published: 2012-05-24
Rated 5 out of 5 by from Great driverGreat 15" driver. Put it in a custom 4.3 ft^3 box power by a XLS1000 and sounds wonderful. Good quality driver for the price. I will definitely be getting another one very soon.
Date published: 2012-03-18
Rated 5 out of 5 by from What a sub!!!I installed this into a 2.0cu ft sealed box for my hatchback, and it rocks! Much, much better than the Infinity sub it replaced. Hits harder, hits lower, and delivers excellent sound quality without distortion. A bigger box would work even better.I will be recommending this driver for home and car use for my friends. Its just so good for the price.
Date published: 2012-03-07
Rated 5 out of 5 by from Great speaker for the moneyI put one each of these in a 9cu ft , heavily reinforced cabinet and put in new 3" tuned ports according to the helpful suggestions from the very friendly and helpful staff. Everyone used to love these speakers with their 35 yr old JBL A15" with JBL horns and crossovers. Now, anyone who listens to them is wowed by the very precise and powerful low bass. I have a Snell Sub 24 THX Ultra 2 to compare it with and they compare very favorably in lowness and cleanness of sound. I am powering them at 4 ohms with a spare Snell Sub 24 Dayton Plate amp designed to run at 2 Ohms powering two 4 Ohm 12" speakers. I am only running one cabinet now.I can't wait for a new amp to arrive which will allow me to run the two cabinits at 2 ohms.
Date published: 2011-12-15
Rated 5 out of 5 by from it worksbuilt a folded horn with this driver. At 20 volts (100w @4 ohms) it causes the house to leave the foundation. I can not imagine what this thing would do If I sent 800 watts to it. Nice driver. Folded horns ROCK. Sure they are the size of a refrigerator but there is no more efficient design. Anyways nice drive, I may build a second.
Date published: 2011-10-06
Rated 5 out of 5 by from Epic Visceral BlissBuilt 2 20 Cu Ft F-20's per lilmike's instructions on AVSForum and used 2 of these for them. Excellent drivers, i'm using a Crown Micro-Tech 600 with 300 watts per channel and it feels like my house is going to fall down at times. If you want incredibly powerful bass these speakers combined with a folded horn enclosure will meet all of your needs. Seriously though, these drivers are recommended by so many DIY sub enclosure designers for a reason.
Date published: 2011-09-20
Rated 4 out of 5 by from Excellent PerformanceThe Sub was assembled in a 100 litre box in conjunction with the SA240 amplifier as part of a home theater system. It could not be a better choice! Awesome performance overall.
Date published: 2011-07-26
Rated 5 out of 5 by from Great sub for the priceAfter looking around everywhere I could boot find a better sub for the money. Performs great in a ported enclosure
Date published: 2011-07-21
Rated 5 out of 5 by from AwesomeThis speaker is awesome, running it in a 7 cubic foot vented enclosure, rock solid to about 20hz (and you can go lower, if you want.) Literally shakes the whole house...and currently I'm only running it at a max of 100 watts (new amp on the way shortly!) Can't wait to see what it'll do with some more wattage getting thrown at it...
Date published: 2011-03-14
Rated 5 out of 5 by from This sub is perfect for my applicationi have this sub in a box that is way to small and i have a crown xls 2000 powering it. but it still slams like crazy. it can be heard 500+ yards from my house.
Date published: 2011-02-23
Rated 5 out of 5 by from Used as subwoofer driverInstalled these in custom made well braced 7 cf cabinets per recommendation by PE tech crew. Used 3 3"x10" pvc pipe for efficiency and tuning. Playing a 30hz test tone will shake the walls. These drivers look to be very well made, and my hopes are they will hold up well. So far all is great!!
Date published: 2010-04-06
Rated 5 out of 5 by from Tremendous Value and PerformanceI built four subs using this 15" HF driver in individual 4.5 cubic ft sealed boxes. These subs sound amazing for music AND home theater. Music was my primary concern and that is where this sub really excels. Incredibly tight and distortion free. They can take a good deal of power as well as I am using an EP4000 in 2 ohm stereo (1250x2 RMS). There may be a better sub out there for music but I have a feeling you will have to spend 3-4 times more per driver to get it!
Date published: 2010-01-28
Rated 5 out of 5 by from Really decient subGreat Speaker, very clean response well built, heavy. Just the ticket for hometheater use wherelow distortion is important. Handles 500 watts rms nicely but, will shake the house.
Date published: 2009-12-26
Rated 5 out of 5 by from Best 15" Sub that I foundreplaced sub with 15" and retuned box. got 10 HZ with 6db roll off would buy this again.
Date published: 2009-11-03
Rated 4 out of 5 by from A very nice driver.A great sounding sub. I have this in a 2.25ft^3, well damped, sealed enclosure and it has a F3 of 34Hz. And is easily EQ'ed flat to 20Hz.With a clean 500W on each, these things rock.I'll be purchasing 4 more to complete the project. ;)
Date published: 2009-05-13
Rated 5 out of 5 by from Love this wooferI've used this woofer now in both ported and sealed enclosures and am very happy with the performance in each design.
Date published: 2009-03-17
Rated 4 out of 5 by from Powerful driverI previously had a Dayton Series II 15" woofer but it failed (I drove it past its xmax). I bought this woofer for three reasons, it wasn't that much more expensive than a replacement series II would have been, it modeled extremely well in my current 5.1 ft^3 enclosure, and it was rated to 500 watts which matched my amp @ 4 ohms. I have been very impressed with it so far. It is not as accurate as my previous woofer, but I am making the transition from an 8 ohm driver to a 4 ohm driver, so my amp has a higher THD. The sub itself is very responsive and plays flat down to 22 Hz. I have plans to put it in a larger box when I get some free time. Overall it is a very responsive and powerful sub. As it breaks in I imagine it will get even better.
Date published: 2009-03-15
Rated 5 out of 5 by from Mounting Holes Too Close to Inner Edge!I installed the 390 in an old BSR DR-SW 15X2 passive subwoofer cabinet with a bead of inch speaker gasketing tape, and I lined the cabinet with inch sonic barrier acoustic foam on all sides except the front. The pressure sensitive adhesive made this really easy to install. I ran 16 AWG wire from the speaker terminals through a small hole in the rear of the cabinet which I sealed with a strain relief and silicone caulk, and I connected the wire with 0.25 in quick disconnects directly to the 240 amp which sits conveniently upright on the floor beside the cabinet. The box is really air tight and the speaker cone resists pressure when manually depressed.Con: The speaker mounting holes are too close the inner circumference of the frame. This makes the holes too close to the cutout to allow the use of hurricane nuts or T nuts. I ended up using smaller and smaller diameter mounting screws until I found a size sufficiently small that would not break out through the MDF and into the cutout.Pros: I can only echo the comments of the other reviewers: this thing hits hard and shakes the house, etc. I can even feel it in the front yard! In comparison, the sound from my budget 8 in Advent powered subwoofer is totally muddled and unintelligible. But more that this, there is no noticeable distortion and it lends new clarity and presence to music. It is a new listening experience to crank up E. Power Biggs, romping and stomping (literally on those low note foot pedals) on the Flentrop organ playing Bach s Toccata and Fugue in D minor, for the first time I can really appreciate, feel and hear clearly those house-shaking lows! I am glad that I spent the extra money for the 390, and I will be adding a second one soon! Thanks to the tech department for their advice on this project.
Date published: 2009-03-09
Rated 5 out of 5 by from Great for the moneyI spent a couple weeks reviewing different drivers for my DIY home theater subwoofer. I ended up choosing this speaker and the hpsa500 amplifier. I built a 6.5 cu. ft. enclosure with dual 4 inch ports. All I can say is wow. I have the gain at about half and it is still almost overpowering. Tons of headroom. My only problem is that my house buzzes now in certain places when the bass hits.
Date published: 2009-02-20
Rated 3 out of 5 by from 18 down 800 high, how do I get a crossoverWell if anyone can let me know. Then thanks to you.
Date published: 2009-01-26
Rated 5 out of 5 by from great subI have this sub under powered, I'm pushing it with an m&k 250w rms amp but it will still knock pictures off the wall. I built a 3.5 cf sealed box for it and it is crisp and hits as low as you could ever want.
Date published: 2008-12-22
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Product Q&A

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Dayton Audio RSS390HF-4 15" Reference HF Subwoofer 4 Ohm

Do you offer a speaker grill that fits this model? I ordered this one but it hits the rubber of the speaker. I will be returning it shortly, thanks! http://www.parts-express.com/parts-express-steel-mesh-2-piece-grill-for-15-speaker-black--260-430

Asked by: MadMattNess
The only grills we have that will clear the surrounds on these woofers are our bar style speaker grills.http://www.parts-express.com/15-bar-grill-black--260-445
Answered by: MattP
Date published: 2015-04-29

Can this subwoofer be used in an Infinite Baffle situation?

Asked by: Shepherdman
Yes, it can.
Answered by: MattW
Date published: 2015-04-22

How would this work in a 4th order bandpass with a 2:1 ratio with 4 cubic feet ported and 2 cubic feet sealed with the ported section tuned to about 42hz and about 60 sq. inches of port area?

Asked by: tyler99
There are quite a few problems with this. The driver will work fine in a fourth order bandpass, but the volumes are different, that port area is far too large and the port length required for that type of tuning frequency is over 6 feet. The volumes recommended for this woofer are 3.6 sealed and 2.8 vented, with a 2" x 16" port that is 23" long. This will provide a tuning frequency of 34 and passband of 20-60 Hz.
Answered by: MattP
Date published: 2015-03-10

Which one of your subwoofer speaker cabinets would you recommend? I'm looking to build a sealed up with either the dayton 250w or 500w amp. Would the Dayton Audio SWC3-VI work well?

Asked by: CheesyHotDogPuff
Yes that would work well with this woofer, as well as any other 3.0 cubic foot enclosures we offer.
Answered by: MattP
Date published: 2015-02-23

I have 2 Paradigm Servo 15 v1 enclosures with blown subs/amps. I am looking for a pair of replacement subs to put in these roughly 3.0 cubic foot boxes and run off an older Precedent 900a (590wpc @ 4 ohms; 775wpc @ 2 ohm). Would these be a good option?

Asked by: egilber1
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-01-16

Wanting to build 5 cu ft downfire sealed would this work and what would you recommend for spacing from the floor

Asked by: Swede1
Yes this will work fine for that application. I would recommend 4-5" of spacing from the floor.
Answered by: MattP
Date published: 2015-01-15

Hi, My youth group has two Mackie SRS1500 subwoofers with ~3 cu. ft. internal volume. Would these offer an improvement if I sealed the cabinet?

Asked by: ivandezande
The Mackie subwoofer is a bandpass type design so sealing it up will result in virtually no output. The woofer that is in the enclosure will be the best option.
Answered by: MattP
Date published: 2014-11-03


Asked by: megabuilder
For a Qtc of .75 the volume needs to be 2.6 cubic feet total, not including driver displacement. This raises the F3 to 37 Hz.
Answered by: MattP
Date published: 2014-10-24

i have 100ftX100 ft open area we want a  Audio system . pl suggest  amplifier & woofer twitter

Asked by: sach
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-10-06

Counting driver displacement....Can someone tell me what the best sealed net internal volume for this driver and how low would I reach? Thanks.

Asked by: pROJECT1
The recommended sealed volume for this driver is 2.88 cubic feet including 0.22 cubic feet of driver displacement. This provides an F3 of 37 Hz and in room response into the low 20's.
Answered by: MattP
Date published: 2014-10-06

I want to DIY a subwoofer. Being without any experiences, do anyone have building scheme/manual for a suitable box for 1 or 2 Dayton Audio RSS390HF-4 15" Reference? A suitable amp? Crossovers? Will be connected to 2 upgraded B&W DM14, doing 80 Hz.

Asked by: oihundal
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-09-11

Would this speaker work with a 50w plate amp I have from another sub?

Asked by: Paulie2731
It may work but it will be severely limited with its output. You will want to consider an amplifier upgrade in order to get the most from this woofer.
Answered by: MattP
Date published: 2014-08-11

I understand the mounting cutout is slightly different, but could someone tell me if the mounting holes pattern are the same as the Dayton Audio DVC385-88 15" DVC Series Subwoofer? They both have 8 mounting holes so would they line up with each other?

Asked by: spoogin
The bolt hole circle on the RS woofer is 368mm or 14.48" and the DVC385 is 369.8mm or 14.56".
Answered by: MattP
Date published: 2014-04-01

I guess I'm having the same difficulty others have had and that is screw size.  I tried a # 8 screw ans could not drill down because I was getting metal shavings.  Anything less seems way to small.  Help!

Asked by: markbark
I would recommend either #10-32 or 1/4"-20 thread screws for this driver. We offer a cast frame driver mounting kit in both sizes.
Answered by: MattP
Date published: 2014-03-26

I want to build a box for 2 of these with a crown dls 1500.  I can go wide and tall . I want it sealed. what do you recommend for box detentions.

Asked by: Shoe
A pair of these require about 6 cubic feet for the overall volume. I would recommend a box with external dimensions of 45"H x 24"W x 12"D.
Answered by: MattP
Date published: 2014-03-10

How will this driver perform in the 300-7078 sub box kit?

I have purchased 2 ea. of these subs and before I start to build enclosures I wanted to find out if the "Knock-Down MDF 3.0 ft³ Subwoofer Cabinet for Dayton Audio 15" Reference Series HO Subwoofer" should be a suitable cabinet.
Asked by: FrankEvans
This woofer performs very well in this enclosure with an F3 of 36 Hz and F10 of 20 Hz.
Answered by: MattP
Date published: 2013-11-06

Good fit for a sealed 122L (4.63 ft3) down firing enclosure?

I may replace my old (and fried) Adire Audio Tempest 15" sub with this one. I built a 122L (4.63 ft3) sealed enclosure specifically for the Tempest sub with a Q of 0.707. It's also a down firing design. With that said, will this sub do well in this enclosure for music listening and occasional home theater listening?
Asked by: Polska
That volume will work very well with this woofer.
Answered by: MattP
Date published: 2013-08-08

Is this a good match for the Dayton Audio SA1000 amp?

To say the least, I have been very disappointed with my SA1000 sub amp from PE. As others have pointed out, the amp tends to clip very quickly and limits output to the sub at very low volumes. It's disappointing because it doesn't "feel" like a 1000W amp. My previous Dayton Audio 250W plate amp "sounded" louder. My disappointment turned to annoyance when the amp fried one of my voice coils in my Adire Audio Tempest 15" sub. In turn, it's time for a new 4 Ohm sub and this seems like a logical replacement. Can anyone tell me if this would be a good match for the SA1000? I will be using my existing 122L (4.63 ft3) sealed, down firing Q=0.707 enclosure. I will primarily be using it for music, with occasional home theater listening.
Asked by: Polska
Yes this will work fine with that amplifier for either application.
Answered by: MattP
Date published: 2013-08-09

Will this driver work in an infinite baffle design

I am looking to do a spare room IB set up with DA RSS390HF-4 15" speakers @4 any input would help. I know about the DA15" IB but was looking for a more robust driver. Thanks
Asked by: Wild Bill 4
Yes it will work for IB although the IB385 will provide more output with the same power and not require as much EQ on the bottom end. You will need some form of a high pass filter for either sub for protection.
Answered by: MattP
Date published: 2014-02-06

Is there a metal grill made specificly for the RSS 390? The surround sticks up too far for standard protective grills...

Asked by: Randy2112
how about the Goldwood bar-type grill? PE # BAR15/BLACK available in black or chrome. Has enough height for most subwoofers, but you can always use stand-offs or spacers to give it more height.
Answered by: samplerman
Date published: 2013-03-09

Ported enclosure?

I have an 8.26 cu ft enclosure with two 4" ports tuned to 21hz. How would this driver function in this enclosure?
Asked by: Ando
This woofer would be OK however you would benefit from a lower tuning frequency in this volume. Looks like your F3 is 20 Hz with this woofer as is which is not bad.
Answered by: MattP
Date published: 2012-12-12

Will this enclosure work?

Would a pair of these work well in a setup like this? Each sub would be in it's own enclosure with 5.3ft^3, 4"x15" 55" port. They would be powered by a QSC RMX-850. This will mostly be for HT, with some music mixed in.
Asked by: Big D
If you search for the WOOFER SELECTION GUIDE and find this driver - it will give you good starting points for sealed and ported versions of this driver. Porting extends bass much lower with the T/S specs of this driver - but for a port tuning of 21hz, you need a 9 cubic foot cabinet. When building a cabinet with a large port - split the port area into multiple tubes. JBL has done this over the years using 2 or 3 smaller tubes rather than one very large one. As for the QSC amp - the one you are choosing is under-powered. Options would be two of them in mono (ideal) or an RMX 2450.
Answered by: markajh
Date published: 2012-10-22

300 vs 500 watt amp

If I put this in a ~4.5^3ft sealed cube with fiberglass insulation would a 300 watt amp be sufficient to power it, or would a 500 watt be better? What would be the volume(db) and frequency response difference between them? Or am I asking too specific of a question?
Asked by: Anonymous
Assuming you have calculated the correct box size, etc, there will be a difference in performance between the 300 and 500 watt amp. It's like the engine in a car. You can get a BMW with a inline 6 or a turbo V8. One has more "head room". With the 500 watt amp, you will have a lot more dynamic headroom and it will perform better - especially on special effects for home theater. Don't expect dramatic increases in volume - but you will find the lower range much more controlled. As with any subwoofer - the more power - the more effortless the woofer will perform.
Answered by: markajh
Date published: 2012-09-19

Dayton RSS390HF-4 15" with dual or single passive radiators?

I was thinking of using this driver a yung 300 watt amp and 2 css 15'' passive radiators in a 4.98 cubic foot box. is this a good design?
Asked by: acmeece
Passive Radiators are complex to make work correctly - especially in regard to phase cancellation. This subwoofer is excellent, and will perform best in a 9 cubic foot enclosure with the port tuned to an F3 of 21hz. 9 cubic feet may sound big - but it's just a tad larger than 2x2x2 internally, not including driver and port displacement. That will be the easiest for a project on a hobbyist level.Mark 26976 comments: "... which WinISD modeled as best for sealed cabinet Q... (WinISD is a software that helps compute this kind of design. Use it or similar.) Passive radiator designs not only eliminate port noise and allow for deeper extension in a smaller cabinet than ported or sealed designs, but also often deliver cleaner bass (when properly done) than ported designs due to quasi-sealed enclosure."
Answered by: markajh
Date published: 2012-08-08

ported or sealed ?

i have a 5.5 cu ft. box dimensions are 19 3/4'' W 13 1/2 '' D 36 1/4'' H, would it be better sealed or ported with this sub ? i want good sQ and good spl im using a 252 watt dayton amp thanks in advance
Asked by: hiviman
Fs / Qes = 36.73 which says keep it sealed. Should perform well in 5.5ft^3.
Answered by: GA Speaker Junkie
Date published: 2012-06-28

is this a single voice coil sub ?

this might be a dumb question but, better safe then sorry
Asked by: hiviman
Yes1 voice coil4ohm
Answered by: Musgofasa
Date published: 2014-03-04

Better choice for larger dedicated rooms

Which is better for SQ, Titanic 15" mk3 or RSS390HF. Prefer sealed enclosures. What about the Titanic 15" passive to add. Allready have a Titanic Mk3 15" sealed without passive.
Asked by: Adoons
Better is a matter of opinion and there is no right or wrong answer. I generally recommend the Titanics for home theater use and the Reference series for music. The Reference is designed to have less distortion which makes it a very clean sounding driver at lower frequencies.
Answered by: MattP
Date published: 2012-05-16

Replacement Driver

I have an old AudioSource SW-15 sub and was wondering if this driver could be used in that enclosure. I'm thinking that I would need to block off the ports (2 - 3"x6") and stuff the box with polyfill. I've already replaced the internal wiring with 12ga OFC and added additional cross-bracing.
Asked by: Dave G
I'm not familiar with the SW-15. But the high qts of this speaker would indicate a sealed enclosure is definetly the way to go. A large cabinet of at least 2 cu ft would give the best low end response. I would also add some bracing.
Answered by: JimOfOakCreek
Date published: 2012-03-11

I wanted to get 2 of these and put them in a sealed enclosure for my car. I'm trying to have a smallish size box. What size box would you recommend?

Going to be running both with a Jl 1000 1
Asked by: Landon
I wouldn't go any smaller than 5 cu ft for two of these. The 3db down point is roughly 30hz this way so it should still sound pretty good.If you have more room you can definitely use it, but any smaller and the response starts getting ragged and sloped below about 50hz so you would lose a lot of what most people want in car audio sound.
Answered by: Musgofasa
Date published: 2013-08-27

What is the ideal sealed enclosure size for this driver with sound quality in mind?Further, what would be an acceptable compromise with how much fill?

Asked by: JDomer
Hi J168 Liters will be the minimun to get the best performance.The knee -3db will be arround 28 Hz and the spl will be arrond 114 dB.Make it well braced and sturdy. 1st quality Baltic Birch is my recomendation. Dont use MDF. Will come apart under his own vibration.will shake a lot.BestDavid
Answered by: Delta287
Date published: 2013-08-20
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