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Dayton Audio SD315-PR 12" Passive Radiator

Brand:| Model: SD315-PR
Overview
The Dayton Audio Passive Radiators are excellent general-purpose passives suitable for replacement or for new construction.
Part # 
295-496
Weight: 2 lbs.  
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List Price$42.99
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Part # 295-496
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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".



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.

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Reviews

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
  • 2015-07-03T06:55CST
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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 SD315-PR 12" Passive Radiator

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

I have a JBL GTS-15 SUB in a box with 3.0 cu. in. (OEM 3.5) 10.5X25.5X19.5 air space. will two 12in passive radiators quiet the sub down and increase the low end (vibrates/unstable) Any reccommendatios or ideas appreciated.  Should I go with a 18in PR?

Asked by: huberb1024
I would not recommend adding a passive radiator or port of any kind to this enclosure. The recommended sealed volume is 5 cubic feet, the recommended passive or ported volume is almost 11 cubic feet. Adding a passive will not really benefit you at all here, probably only hurting more than helping. That woofer works very well in a sealed alignment so as long as it is getting clean power you shouldn't have any issues.
Answered by: MattP
Date published: 2015-05-19

What is the limit for the added mass on this passive radiator?

Asked by: djarchow
We recommend no more than doubling the Mms on these passives.
Answered by: MattP
Date published: 2015-05-05

I'd like to add one of these to reinforce the low frequencies from my Eminence Beta 12a-IIs (290-408) in a sort of Econowave setup (4.75cu. ft.). Any concerns about matching these up with a pro driver? Any issues with rear-firing it, relative to the Beta?

Asked by: Teddy_KGB
The problem with using a passive radiator in this volume (relative to woofer size) is you cannot tune one high enough. Passives are designed for enclosures that are too small to properly fit a port. With a 4.75 cubic foot enclosure you can help the bottom end by simply adding a small port. A 4" diameter, 1" long port will provide a tuning frequency of 38 Hz.
Answered by: MattP
Date published: 2015-04-23

Have a Dayton Audio ST385-8 15" Series II Woofer in sealed cabinet (13.3 cu. ft.). Building a cabinet for low organ sounds - down to 16 hz. The speaker seems to be trying to do it. Would adding two of these radiators help?

Asked by: Bach On
Unfortunately no, you would need two 15" passives in order to handle the displacement of the woofer. In that volume however you really only need to port the cabinet, passive radiators are not required in a volume that large. Two 4" diameter ports that are 15" long will tune the enclosure to 17 Hz. You will also lose some power handling capability so keep an eye on the cone excursion in order not to damage the driver at higher volume levels.
Answered by: MattP
Date published: 2015-04-14

What is the displacement of these PR's? Do I need to take their displacement into consideration when I build the box they're going in or just build my box the spec and slap them in there?

Asked by: ShiftR
These will displace so little it will not matter in the total volume of the enclosure.
Answered by: MattP
Date published: 2015-02-11
  • 2015-07-03T08:47CST
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