Dayton Audio SD315-PR 12" Passive Radiator

Brand:|Model: SD315-PR
The Dayton Audio Passive Radiators are excellent general-purpose passives suitable for replacement or for new construction.
In Stock
List Price$42.99
You Save20%
Your Price
Buy 4+$32.77
Part # 295-496

Product Details

Dayton Audio SD315-PR 12" Passive Radiator

The Dayton Audio Passive Radiators are excellent general-purpose passives suitable for replacement or for new construction. A built-in mass disc offers a good starting point for most designs, and a convenient M5 threaded hole (screw included) allows different types of weights to be added if desired. Cosmetically and mechanically, the passives match the Shielded DVC line of subwoofers, with a poly coated paper cone and medium-roll rubber surround for clean excursion and long life. The possibilities with these passives are endless, from floor standing two-ways to small active/passive subwoofer systems.

Specifications: • Fs: 17 Hz • Vas: 5.20 cu. ft. • Qms: 3.00 • Cms: 0.45 mm/N • Mms: 200 g • Rms: 7.03 kg/s • Sd: 480 sq. cm. • Xmax: 10 mm • Dimensions: Overall diameter: 12.36", Cutout diameter: 10.71", Depth: 3.50".

Note: Adding mass to the passive radiator will decrease Fs and increase Qms.

Tip: As a general rule the passive radiator(s) should be able to move double the volume of air as the active woofer(s)/subwoofer(s) in the system. For example: A passive radiator system for a 12" woofer/subwoofer that has 10mm of X-max would require 2-12" passive radiators with 10mm of X-max. For single passive radiator systems, it is common to use a passive that is larger than the active woofer(s)/subwoofer(s).

Product Specifications
  • Nominal Diameter12"
Dayton Audio SD315-PR 12" Passive Radiator
  • BrandDayton Audio
  • ModelSD315-PR
  • Part Number295-496
  • UPC844632000416
  • Product CategoryPassive Radiators
  • Unit of MeasureEA
  • Product Rating
    (16 Reviews)
  • Weight2 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 SD315-PR 12" Passive Radiator
in the Passive Radiators product category.


Dayton Audio SD315-PR 12" Passive Radiator
Dayton Audio SD315-PR 12" Passive Radiator is rated 4.375 out of 5 by 16.
Rated 1 out of 5 by from 3 out of 4 tore apart quicklyI bought 4 of these to use 2 each in dual enclosures, paired with a single 15" driver in each enclosure. Without pushing them hard at all, 3 out of 4 of them had the cones tear away from the spiders, almost immediately (less than 30 minutes of use). Basically, the extremely weak glue failed. The very nice Parts Express tech advised me that the enclosures I was using were too large for these, but if I sent them back, they'd replace them. I'm no expert, so maybe he's right, but that seems pretty weak to me. So, I chose not to send them back, because if they're not going to work for my enclosures, why do I need new ones? Instead, I'm loading the cone/spider joints with super glue, and maybe some other flexible adhesive like silicone. If they fail again, I'll throw them away, consider the $150 I flushed down the toilet to a life lesson, and look for other options.
Date published: 2015-05-27
Rated 5 out of 5 by from Works great with my Kenwood speakers!My Kenwood JL955WAV needed replacement radiators. The foam rubber on the old ones was just falling apart. I tried having them repaired, but I found that it would be less costly to replace them. After purchasing them and installing them, I am very satisfied with the results. They gave my Kenwood speakers a whole new life. I would recommend these radiators to anyone.
Date published: 2014-05-05
Rated 5 out of 5 by from Excellent sound & value quality!!!These are the "cats meow" in passive radiators,excellent Quality,plus the price can't be beat.
Date published: 2014-02-12
Rated 5 out of 5 by from Almost perfect replacement for the Velodyne VA1012I was concerned that a different passive radiator would change the performance and sound of my circa 1990 Velodyne VA1012 but the Dayton looks and may even sound better. I had to drill new mounting holes because the original had 8 and the Dayton has 5. I didn't add any weights.
Date published: 2014-01-18
Rated 2 out of 5 by from Sounds good, but Poor Quality workmanshipI bought this to replace the older model that used a foam surround. After barely a month of use, the cone ripped away from the spider.
Date published: 2014-01-02
Rated 5 out of 5 by from Very Good BuyBought a pair of the PR's with a pair of the goldwood 10" heavy duty woofer. Put them in a Pair of Infinity EM-103's that are older than I am and boy do they sound AWSOME!!!!! Thanks
Date published: 2010-02-28
  • 2015-12-01T06:42CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_16
  • loc_en_US, sid_295-496, PRD, sort_mostRecent
  • clientName_PartsExpressInternational

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  for a prompt reply.
Dayton Audio SD315-PR 12" Passive Radiator

Can this be used with the infinity reference 1262w subwoofer in a 2 cf enclosure?

Asked by: Tmfdriver

I just have two W8-740P for my Toyota extracab truck. I want these (2) PR's to extend lower frequency response, not SPL. 100 or 500 watts per sub. What box size for 20 hz response, please. Thanks

Asked by: ben60
Unfortunately you won't be able to reach 20 Hz with reasonable output using this driver. A pair of those passives would require 200 grams of weight each just to reach a tuning frequency of ~48 Hz. This is about the lowest tuning frequency possible, even using a smaller PR.
Answered by: MattP
Date published: 2015-10-14

Looking to build a sealed box for my mains of my home theater, but would like to keep it sealed, yet get down to around 50Hz or less.  How would one of these passives work with a Dayton R225-4 8" woofer?

Asked by: ngconquest
A volume of 1.7 cubic feet with this PR will work well. With no weight added you will have a tuning frequency of 35 Hz and output into the low 30's.
Answered by: MattP
Date published: 2015-08-21

Will this fit in your Trapezoid cabinet that comes with 11" hole, or is the hole too big?? I am not a wood worker LOL

Asked by: Kencayenne
Yes this will fit the cut out in that enclosure.
Answered by: MattP
Date published: 2015-07-30

I have a focal 33v2 13 inch subwoofer 400 watts rms powered at 500 watts rms in a sealed 17inx17inx17in box. Would this passive radiator be a good match?  Or is the box to big or also is the box to big for my subwoofer as it is. Thanks for the help.

Asked by: Whitefox2298
Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2015-07-13

I am considering using this (instead of porting) with a RSS210HO.  Will it work well for this application? And if so what weight ballast would be recommended in the recommended ported box volume (1.68) to achieve the 27hz fs?

Asked by: maintain_uh
The ported volume on the site is actually not accurate and I will have this fixed. The recommended volume for this woofer using a passive is 1 cubic foot. With 200 grams added you will have a tuning frequency of 30 Hz and in room response into the mid 20's.
Answered by: MattP
Date published: 2015-05-20
  • 2015-12-01T07:21CST
  • bvseo_cps, prod_bvqa, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_33
  • loc_en_US, sid_295-496, PRD, sort_recentQuestionsFirst
  • clientName_PartsExpressInternational

Recently Viewed Products

Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Get Sales Flyer
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA

© 1986-2015 Parts Express, All Rights Reserved

Live Chat Software