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Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm

Brand:| Model: ND140-4
Product Video
Overview
Dayton Audio's compact aluminum cone drivers demonstrate the latest advances in high-excursion design processes.
Highlights
  • Extended-range 54 Hz to 8 kHz performance
  • Rubber-edged aluminum alloy cone
  • Large excursion capability—4 mm Xmax, 20 mm peak
  • Self-shielded Neo-Balanced motor structure
  • 1" 4-layer underhung voice coil with polyimide former
  • 40 watts RMS power handling
Part # 
290-216
Weight: 1 lbs.  
IN STOCK
List Price$39.99
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Part # 290-216
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Product Details

Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm

Dayton Audio's compact aluminum cone drivers demonstrate the latest advances in high-excursion design processes. An efficient, low-distortion Neo-Balanced motor is combined with a rigid yet lightweight aluminum diaphragm, yielding impressive high-impact audio reproduction. Perfect for single point-source applications, or combined in multiples and line arrays.



Product Specifications
  • Nominal Diameter5-1/4"
  • Power Handling (RMS)40 Watts
  • Power Handling (max)80 Watts
  • Impedance4 ohms
  • Frequency Response54 to 8,000 Hz
  • Sensitivity85.3 dB 2.83V/1m
  • Voice Coil Diameter1"
Thiele-Small Parameters
  • Resonant Frequency (Fs)54 Hz
  • DC Resistance (Re)3.7 ohms
  • Voice Coil Inductance (Le)0.72 mH
  • Mechanical Q (Qms)6.59
  • Electromagnetic Q (Qes)0.74
  • Total Q (Qts)0.66
  • Compliance Equivalent Volume (Vas)0.36 ft.³
  • Mechanical Compliance of Suspension (Cms)0.97 mm/N
  • BL Product (BL)3.9 Tm
  • Diaphragm Mass Inc. Airload (Mms)9g
  • Maximum Linear Excursion (Xmax)4 mm
  • Surface Area of Cone (Sd)86.6 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialRubber
  • Voice Coil FormerKapton® / Polyimide
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter5.5"
  • Baffle Cutout Diameter4.75"
  • Depth2.5"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.78 ft.³
  • Sealed F365 Hz
  • Vented Volume1 ft.³
  • Vented F334 Hz
Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm
  • BrandDayton Audio
  • ModelND140-4
  • Part Number290-216
  • UPC844632081484
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (5 Reviews)
  • Weight1 lbs.
  • Case Qty36
  • 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.

Similar Products

View similar products to the Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm
in the Midrange / Midbass Drivers & Full-Range Speakers product category.

Reviews

Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm
Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm is rated 4.8 out of 5 by 5.
Rated 4 out of 5 by from strong midbassIm using the ND140-4 in a three way set up along with ND91-4 and ND25FN-4. The midbass that this 5.25 puts out strong and powerful.
Date published: 2014-07-17
Rated 5 out of 5 by from Awesome ProductBought these a few weeks ago with some 3/4" Neodymium tweeter 's for my dakota and love them. I simply made some plates for the front doors and made a 2 cuft box tuned to 33.5hz and they sound bad a**. Picture a brand new car stereo that actually gets loud and doesn't distort. I'm using a powerbass 4 chan. For the price of a set of cheap chain store speakers you get so much more! Love them!
Date published: 2014-03-13
Rated 5 out of 5 by from Great little speakersI built a simple surround sound system for my basement to use with video watching/gaming. They are the main component for the center channel and I used the 8ohm version for the corner channels. Very simple design crossed at 2kHz with Vifa BC25SC06-04 they work well together and I am very happy with how they sound when watching movies.I am new to speaker building and this was my first attempt at a complete system. I have researched for a very long time and used a magnitude of programs to come up with a combination. I really enjoy the final product though and I am very satisfied.I wish I made the front two channels to match the center channel I like 2 4ohm speakers instead of one 8 ohm. The crossovers were very similar between the two.
Date published: 2013-04-26
Rated 5 out of 5 by from Great speakerI've used this driver in two separate cars, both open air and I've fed them 50WRMS with no problems. One system was setup to go from 80htz to 600 and it was paired with a Dayton 2.5" speaker, current system its paired with a 8" driver, and the same 2.5" full range. The sound quality and power handling on this speaker is amazing in any setup I've built.
Date published: 2012-01-17
Rated 5 out of 5 by from Amazing little driverI installed this in a .7 cu ft ported enclosure (thanks to p.e. for the guidance) and crossed it electronically to 120hz and all I can say is...wow. They sound amazing for all types of music. Used as a fullrange...eh, but as a woofer in a 3 way triamped system it simply sounds amazing. Musical instruments sound like they're in the room with you! This setup literally brings your room to life. Bravo Dayton!
Date published: 2011-04-23
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Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Dayton Audio ND140-4 5-1/4" Aluminum Cone Midbass Driver 4 Ohm

Can 2 of these be put in a single enclosure and what should the size of enclosure be? Would it be possible to use a ported enclosure?

Asked by: CesarC
Yes you can use two in a single enclosure, I would recommend wiring them in series for an 8 ohm load. The enclosure volume would be 2 cubic feet for both, with a 3" diameter port that is 3" long for a tuning frequency of 40 Hz.
Answered by: MattP
Date published: 2015-02-05

I want to use three of these in one box tuned to around 30hz, 35hz if port is outragously large. How much volume should the box have? This will be a subwoofer set up using three of these drivers in an automotive application 

Asked by: DopeGuy1
The recommended volume for three of these is 3 cubic feet with a 3" diameter port that is 3" long for a tuning frequency of 33 Hz.
Answered by: MattP
Date published: 2014-07-03

Boombox - Can I put 2 of these in a .5 cu ft box with a dayton sd215 pr down firing and still get powerful low end? I don't want to lug a huge box around but still want the basssss.

Asked by: RussD
I would recommend keeping the box sealed with two of these. You will have usable response into the 40's.
Answered by: MattP
Date published: 2014-03-24

any other way to add tweeter to this woofer w/o passive crossover ? for car use

Asked by: gurgi
You will minimally need a crossover to protect your tweeter. The absolute simplest and cheapest way would be to run this unit full range and put a cap on your tweeter, probably calculated for around 8000 or 9000 hz. this is very simple and would not cost more than a couple dollars for a good quality poly cap.If you have an amp or deck with active crossover options, you could potentially use the low pass on one channel to cross over this unit lower, and if it has the ability, the highpass on another channel to cross the tweeter. This would be an excellent setup, but would require one channel per driver (so a 4ch amp for just your front left/right components), and the amp or deck would need the ability to high/low pass in the 3000 - 5000 hz range. If this isnt an option, get a cap and throw it on your tweeter as mentioned above. you could get a few different values of cheap electrolytic caps to play around with your crossover frequency and once you find what you like, get a poly cap of the same value to replace it for your permenant setup. Good luck!
Answered by: dynamo
Date published: 2013-09-24

if used for car do i need crossover and tweeter?

Asked by: gurgi
Yes it is recommended that you do because it has a low frequency voice coil. So in order to get the best and accurate sound a proper X-over is recommended for optimum sound. Good Luck
Answered by: Booth man
Date published: 2013-08-26

Will this work in my car doors ?

hello friends, i wand to use this dayton audio mid bass in my car doors along with Dayton Audio RS28F-4 1-1/8" Silk Dome Tweeter and using with my old hertz HSK 165 for cross over , will this set up work with the crossover? Please helphere are the link for the crossover spec-http://www.hertzaudiovideo.com/Doc/pdf_hsk165.pdf
Asked by: Hung
I see no reason this would not work. The crossover point is suitable for both drivers as long as it is intended for 4 ohm loads.
Answered by: MattP
Date published: 2013-05-09
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