Dayton Audio DA115-8 4" Aluminum Cone Woofer

Brand:| Model: DA115-8
The aluminum cone on this driver is extremely rigid yet well damped, making the bass and midbass region very clean and low in distortion.
  • Great looking and sounding woofer
  • Cosmetic stamped steel frame
  • Flat frequency response in passband region
  • Impressive output capabilities when used in MTM designs
  • Very low distortion
Part # 
Weight: 2 lbs.  
List Price$20.99
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Your Price
Buy 4-up$14.67
Part # 295-328
Qty:  EA
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Product Details

Dayton Audio DA115-8 4" Aluminum Cone Woofer

The aluminum cone on this driver is extremely rigid yet well damped, making the bass and midbass region very clean and low in distortion. When used with a well-designed crossover, an extremely flat frequency response can be achieved that is clean well into the midrange region.

Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)20 Watts
  • Power Handling (max)40 Watts
  • Impedance8 ohms
  • Frequency Response60 to 15,000 Hz
  • Sensitivity84.9 dB 1W/1m
  • Voice Coil Diameter2"
Thiele-Small Parameters
  • Resonant Frequency (Fs)60 Hz
  • DC Resistance (Re)6.4 ohms
  • Voice Coil Inductance (Le)0.7 mH
  • Mechanical Q (Qms)2.6
  • Electromagnetic Q (Qes)0.49
  • Total Q (Qts)0.41
  • Compliance Equivalent Volume (Vas)0.16 ft.³
  • Mechanical Compliance of Suspension (Cms)1.1 mm/N
  • BL Product (BL)5.7 Tm
  • Diaphragm Mass Inc. Airload (Mms)6.6g
  • Maximum Linear Excursion (Xmax)2.5 mm
  • Surface Area of Cone (Sd)53.1 cm²
Materials of Construction
  • Cone MaterialAluminum
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter4.55"
  • Baffle Cutout Diameter3.66"
  • Depth2.26"
  • Bolt Circle Diameter4.21"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.04 ft.³
  • Sealed F3125 Hz
  • Vented Volume0.13 ft.³
  • Vented F368 Hz
Dayton Audio DA115-8 4" Aluminum Cone Woofer
  • BrandDayton Audio
  • ModelDA115-8
  • Part Number295-328
  • UPC844632081675
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (12 Reviews)
  • Weight2 lbs.
  • Case Qty12
  • 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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Dayton Audio DA115-8 4" Aluminum Cone Woofer
Dayton Audio DA115-8 4" Aluminum Cone Woofer is rated 4.6667 out of 5 by 12.
Rated 5 out of 5 by from awsome!little late on the review, but i got these for running voice in a custom car audio setup, i tried them in the house first ,dropped them in a center channel box i had laying around, simply loud and clean. made a plate and put them in the doors in my mustang, factory deck wasnt cutting it, so put them on a mtx 275x amplifier and can get extremely loud and clean, i took most of the bass out, loud volumes arnt an issue so far, very impressed with dayton!
Date published: 2014-09-09
Rated 5 out of 5 by from Good sub for a mini-systemI used this woofer as a mini-sub in a system I built for my bathroom. It fills the small room with exactly enough bass. At the right frequencies I can feel a slight tremble in my fiberglass shower. Some rap songs are a bit too much for the small woofer when listening at high volumes, but anything rock, country, acoustic, etc. sounds phenomenal!The unit measures 16"x20"x3" and hangs on the wall. The sub is in a .25ft^3 enclosure tuned to 57hz achieving an F3 of 47hz. I used two Tang Band W3-881SI 3" drivers (Sorry, these gems sold out!) and powered it, of course, with the DTA-2 amplifier. I bridged the output to the sub and ran it through a low pass filter at 120hz. This amp is not intended to be bridged, and I'm sure this voided the warranty, but for $20 I was willing to chance it. I've been using it every day for over a year with no problems.Overall the project was a huge success. I use it everyday and LOVE the bass output. No off-the-shelf system that I've heard can compare to the detail I get from these 3 speakers. The only downside is that everyone says it looks like a face. And it does...
Date published: 2014-04-21
Rated 5 out of 5 by from Almost perfect fit for the BMW E36 rear deck 4"This driver fits almost perfectly in the rear deck speaker enclosure (made of black plastic) in the 1993 bmw 325is and, I guess, most E36 models. That enclosure has a rectangular port and houses an 8-ohm tweeter and a 4-ohm 4-inch woofer, both made by Nokia. There is a 3.3 uF cap in series with the tweeter, and nothing on the woofer.The DA115-8 replaced the woofer. The DS115-8 can do the same job.The DA115-8 was the only driver I found that fits. The original woofer is a 4-incher with 2 diagonally-opposed ears with mounting holes exactly 5 inches center to center, and the driver's outer diameter is 115 mm. I could not find a 4-inch driver with such dimensions. I tried a 2-way 6x9 coaxial mounted on a plastic adapter that's specifically made for the E36 (sold on ebay and amzon), but didn't like the sound.The DA115-8 is about 1 mm too wide, so I had to shave off about 1 mm of plastic from the "shallow" side of the enclosure. Two (improvised) small metal retainers hold the driver very securely in place. Weather sealing foam, 3/8" wide and 3/16" thick, was used for mounting.The DA115-8 can run full range and sounds just fine (tried it in my home stereo system). But I wanted to tame the peak in the 7-10 kHz range, so I put a 0.45 mH air-core inductor in series.The original tweeter is glued firmly in place and I didn't want to risk damaging theenclosure to replace it. It is worth experimenting with disconnecting that tweeter and relying entirely on the front tweeters and the fade control to balance the sound.
Date published: 2014-02-10
Rated 5 out of 5 by from Impresive output for its sizeI needed to rebuild a pair of incorrectly designed bookshelf speakers, and chose this woofer for two reasons:1) WinISD indicated it would fit my box with a slight size increase and addition of a tuned port.2) It was a good aesthetic match for an OEM-pulled Vifa D25 tweeter pair I was intending to re-use.After completing the box and stuffing it heavily with fiberglass, I found the amount of output from these woofers to be remarkable. Simply put, I've never heard a 4-inch woofer sound so good. If starting from scratch, I would probably select the 5.25-inch version just to get more surface area, but the 4-inch version holds its own and leaves no buyer's remorse. Definitely recommended.
Date published: 2013-05-28
Rated 5 out of 5 by from Superb MTMI recently built a pair of Mark65's Duellati's. WOW. Very neutral with surprising bass. I listen to mostly orchestral classical music and am constantly surprised with how good these speakers sound. Congrats to Mark65 for a superb design, and to Part Express for this gem of a speaker!
Date published: 2012-09-08
Rated 4 out of 5 by from Look great, sound okI like these and would use them again because they look great. The shiny aluminum ring really pops against any dark-colored baffle and is a neat accent in a spot where you want to show off your cabinet design. Great for making the wife happy or a gift to the mom-in-law (no sarcasm intended).I still prefer the sound of paper or poly cones, but I really get tired of the way most of them look, just black.
Date published: 2012-08-19

Product Q&A

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Dayton Audio DA115-8 4" Aluminum Cone Woofer

I looked through the specs and didn't find this: What is the Fo (free air resonance) of this speaker?

Asked by: Jay1Too
The free air resonance of this woofer is 60 Hz.
Answered by: MattP
Date published: 2014-11-24

Cabinet size for four of these in a vented enclosure?

Asked by: NewB
I would recommend an enclosure that is 0.6 cubic feet with a 2" diameter, 3" long port for a tuning frequency of 55 Hz.
Answered by: MattP
Date published: 2014-11-03

Can I split a aux cord and attach it to the sub and plug it into my phone

Asked by: Devan14
A phone is generally not powerful enough to drive a speaker. generally you would better off with an amplifier to power this speaker.
Answered by: Chrisf
Date published: 2014-06-02

can a pair of these be used as a mini subwoofer with a 60W amp?? if so what size box and port for an F3 in the 60Hz range

Asked by: speakerfreak1
These will work with low power for an application like that. In 0.3 cubic feet for both, with a single 1.5" diameter, 4" long port it will be tuned to about 56 Hz. I would not recommend any more than 25 watts for both.
Answered by: MattP
Date published: 2014-05-28

I am looking to use a set of these in my center channel speaker and using them with a Vifa BC25SC06-04

I am wondering about what i will be at resistance wise with a 3k crossover and this setup in parallel to each other. Trying to find out how to get close to 8 final from the speaker, but i am not 100 percent sure how the crossover changes the resistance in the setup
Asked by: Bryanw83
If you run two of these in parallel they will be at 4 ohms total in their pass band. You have a 4 ohm tweeter, so that will be 4 ohms in its pass band. Thus, you would have a speaker that is 4 ohms over it's whole range.Crossovers don't usually have much effect on impedance. However, they do decide over what frequency ranges individual drivers play, and thus determine how the individual driver's impedances effect one another.Here is a bit of explanation as to how this works. In your example you have two woofers playing over the same range (under 3kHz). Since they are both 8 ohm loads, and they are wired in parallel, the total impedance load that the amp would see is 4 ohms, for the low pass section. Since your tweeter is 4 ohms and is the only speaker playing above 3 kHz the total load for the high pass section (over 3kHz) is 4 ohms as well. Since the woofers and the tweeter are not playing over the same range, they have no effect on each others impedance. Thus your amp will see about a 4 ohm load regardless of what frequency signal it puts out to the speaker.Since you want to make an 8 ohm speaker, you need the high pass section to be 8 ohms and the low pass section to be 8 ohms. That pretty much means you need an 8 ohm tweeter. So, look for an 8 ohm tweeter. For the low pass you can get this in a couple ways. You can use a single 8 ohm woofer, or if you want to stay with 2 woofers, get two 4 ohm woofers and wire them in series. Or, and this is just for examples sake, you could get two 16 ohm woofers and wire them in parallel.Your next battle is going to be keeping the tweeter from being way louder than your woofer(s).I strongly suggest starting a build thread on the Parts Express Tech Talk forum. There are lots of DIYers there that would be willing to help you tackle all the issues that come with building your own speaker.
Answered by: Travis Rysdam
Date published: 2013-02-11

would this driver hold up in a sheltered outdoor application?

Asked by: munki114
Yes this would be find in an outdoor environment.
Answered by: MattP
Date published: 2014-03-03

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