Dayton Audio SD215A-88 8" DVC Subwoofer

Brand:| Model: SD215A-88
The Dayton Audio SD215A-88 8" subwoofer speaker is one of the best bang-for-the-buck low frequency drivers available today.
  • Works equally well in sealed or vented enclosures
  • Attractive gasket-less design
  • Long-life rubber surround for years of reliable service
  • Excellent bottom octave performance
Part # 
Weight: 4.7 lbs.  
Due In: 10/28/2014
List Price$38.99
You Save23%
Your Price
Buy 4-up$28.35
Part # 295-484
Qty:  EA
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Product Details

Dayton Audio SD215A-88 8" DVC Subwoofer

The Dayton Audio SD215A-88 8" subwoofer speaker is one of the best bang-for-the-buck low frequency drivers available today. Dayton Audio DVC Series woofers were designed to offer the maximum performance-per-dollar. The speakers feature poly coated paper cones, wide rubber surrounds, large dual 8 ohm voice coils, vented pole pieces, and bumped back plates. Their healthy Xmax, long-throw construction, and dual voice coils make them perfect for any economical yet high-performing subwoofer speaker system.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)80 Watts
  • Power Handling (max)160 Watts
  • Impedance4 ohms
  • Frequency Response31 to 2,500 Hz
  • Sensitivity85.9 dB 1W/1m
  • Voice Coil Diameter1.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)31 Hz
  • DC Resistance (Re)3.2 ohms
  • Voice Coil Inductance (Le)1.16 mH
  • Mechanical Q (Qms)3.1
  • Electromagnetic Q (Qes)0.45
  • Total Q (Qts)0.39
  • Compliance Equivalent Volume (Vas)1.35 ft.³
  • Mechanical Compliance of Suspension (Cms)0.62 mm/N
  • BL Product (BL)7.7 Tm
  • Diaphragm Mass Inc. Airload (Mms)42.4g
  • Maximum Linear Excursion (Xmax)6 mm
  • Surface Area of Cone (Sd)208.7 cm²
Materials of Construction
  • Cone MaterialCoated Paper
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8.5"
  • Baffle Cutout Diameter7.09"
  • Depth3.74"
  • # Mounting Holes5
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.33 ft.³
  • Sealed F368 Hz
  • Vented Volume0.95 ft.³
  • Vented F338 Hz
Dayton Audio SD215A-88 8" DVC Subwoofer
  • BrandDayton Audio
  • ModelSD215A-88
  • Part Number295-484
  • UPC844632088698
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (29 Reviews)
  • Weight4.7 lbs.
  • Case Qty8
  • California Prop 65

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

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Dayton Audio SD215A-88 8" DVC Subwoofer
Dayton Audio SD215A-88 8" DVC Subwoofer is rated 4.7586 out of 5 by 29.
Rated 5 out of 5 by from Good 'lil subWorks well with the polk psw-50 as replacement. Had to trim out opening some and is much beefier than the oem.
Date published: 2014-09-25
Rated 5 out of 5 by from Fantastic for the priceI used this driver with Dayton Audio's 100W RMS subwoofer plate amp for a small vented sub build. The combination sounds great at low volumes and can really crank (for a small sub) when you turn it up, with no audible distortion. One thing that wasn't clear to me was that each voice coil is 8 ohms (8+8), so the driver can be wired for 4 ohms total. For the price, you can't go wrong with this little driver for any small subwoofer project.
Date published: 2014-08-14
Rated 5 out of 5 by from Works great!!Bought 2 weeks ago, great product, sounds great!! Fast shipping ,great price!!
Date published: 2014-07-27
Rated 5 out of 5 by from Worked wellPurchased as a replacement for the sub in my SW-200. A little slight modding to the wiring and it looks and functions better then the stock sub ever did
Date published: 2014-06-17
Rated 5 out of 5 by from Great product!Sounds great, and for a great price. You can't go wrong.
Date published: 2014-06-03
Rated 5 out of 5 by from Tight, accurate, yet low achiever.In the title I mention its tight and accurate. The subwoofer is exactly that, the bass notes are dead on, drum kicks are hit with authority. What really impresses me, is that for an 8 inch woofer, its low end extension and reproduction is unreal. It hits low notes as its 10 inch big brother would. The free air resonance of 31hz is easily achieved and with the right size box and port-tune, its a deadly combo.
Date published: 2014-05-21

Product Q&A

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please email tech@parts-expresss.com  for a prompt reply.
Dayton Audio SD215A-88 8" DVC Subwoofer

No need to answer separately but if I have a 20hz and 30z inline rca crossover, would you recommend using either with this product? Using 2 at 70w 4ohm in a mobile application.

Asked by: GarthMittens
I would recommend the 30 Hz option with the enclosure volumes I gave you before.
Answered by: MattP
Date published: 2014-10-07

Sorry for this question again. Could you give a suggestion as to proper dimensions/volume for a slot ported design?  Or would you say that a port small enough to give desired tuning for this driver would be too narrow/noisy?

Asked by: GarthMittens
There are many volumes and tunings this driver will work in. If you want a relatively compact enclosure and a dece3nt tuning frequency, I would recommend a volume of 0.68 cubic feet total with either a 2" diameter, 8" long port, or a slot port that is 1"H x 3"W x 8" long. Either option will give you a tuning frequency of about 38 Hz.
Answered by: MattP
Date published: 2014-10-07

Assuming a 1^cu ft internal volume, what is the best port size and length to get the most SPL around 35 to 40 hz?  My goal is high efficiency.  

Asked by: ray k
I would recommend a 2-1/2" diameter port that is 8" long in that volume. This will give you strong output down to 30-35 Hz.
Answered by: MattP
Date published: 2014-09-12

Is this a good replacement for the SUB-800 speaker? Is it worth it? Thanks

Asked by: Dalegriaeua
This will work well in terms of the enclosure volume and tuning, but it will require modifications in order for it to actually fit in the box due to its slightly oversized frame.
Answered by: MattP
Date published: 2014-09-02

How would this be ported best in a Part # 300-7068 (.67 cu ft) box. 8" Dayton SD215A-88 & The Daton 70W plate amp? Or should it be ported at all?

Asked by: Spaker
That enclosure is a little on the small side for that woofer, but it can work. With a 2" diameter, 10" long port you will have a tuning frequency of 33 Hz. You will probably have port noise at higher levels however. Your best bet is to use a pair of the matching 8" passive radiators with 75 grams of weight added to each for the same tuning frequency.
Answered by: MattP
Date published: 2014-08-27

I need an 8" subwoofer dual voice coil for my 2007 Rav 4. Do you have any suggestions? I plan on trading it in next year so I don't want to spend big bucks.

Asked by: Powerhouse66
Assuming it will physically fit, this Dayton would be a good choice. A cheaper option would be the Goldwood below, but you will have to compare dimensions with the stock woofer to make sure either option will fit.http://www.parts-express.com/goldwood-gw-408d-8-poly-dvc-woofer--290-357
Answered by: MattP
Date published: 2014-08-01

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