Dayton Audio Dayton Audio SD315 PR 12" Passive Radiator P1264265 http://cdnimages.opentip.com/full/PEX/PEX-295-496.jpg Dayton Audio SD315 PR 12" Passive Radiator 1264265 2.00lbs 0.00 0.00 0.00
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Dayton Audio SD315-PR 12" Passive Radiator

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Rating 4.5| 2 reviews

1000 In Stock
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Product Description

Manufacturer Part Number: SD315-PR

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 Diameter: 12"
Dayton Audio SD315-PR 12" Passive Radiator
  • Brand: Dayton Audio
  • Model: SD315-PR
  • Part Number: 295-496
  • UPC: 844632000416
  • Product Category: Passive Radiators
  • Unit of Measure: EA
  • Weight: 2 lbs.

NOTE: International/PO BOX deliveries are not available.




Product Specifications

ConditionNew


Restricted States

This product does not ship to the APO address and the following addresses: HI, AK, PR.


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Customer Reviews
4.5 out of 5
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Date Added: Tuesday 29 November, 2011
Funny noises coming from my old sub, the venerable Velodyne V-1012-b, a unit that got good reviews in its time, has its own amp, is a sealed design with a 10" driver and a 12" passive radiator. This was a pretty high-end, made in the USA design in its day and people have kept them going for many years now.. The radiator was making rude noises and when I removed it, I found it had split open. No problem as it I bought it long ago and the rubber probably just got old. The Dayton Audio SD315-PR 12 is quite inexpensive and its construction is basically a light stamped frame with a stiff, modern-material cone and what seems to be quality, pliable surround that allows it to move fairly easily. After all, what moves a passive radiator is just the sound waves from the other speaker. It has to move reasonably easy or it wouldn't do anything. I had to modify the mounting area in order to properly attach and seal this radiator. You can never expect a universal speaker of any sort to ever just screw right in as most mass-produced speaker systems use proprietary components that are designed to pop in with a minimum of labor.The Dayton has a provision to attach washers as weights in order to increase the inertia of the cone and thus modify the response. I just left it stock and light for the quickest response. In the end, the operation was a success. I tried a variety of music featuring bass and it all worked, and in fact I turned the response to right where I had it originally, so the bass response is very much the same as the original unit. That is a good thing. In any case, the Dayton worked, was very reasonable in cost and would be a good choice as a universal replacement or if you are building your own sub.
Rating: [4 of 5 Stars!]
Date Added: Saturday 17 December, 2005
I have yet to progress to the level of savy audiophile neardness where I can make my own speakers, so I cant say how thay stand up to that, but as replasment passive radiators thay are fantactic.For fifty bucks I got a pare of old-scool (40" tall with duel 12's) floorstanding speakers that had their passive radiators missing, leaving a 12" port in both of them.Puting these drone cones in the speakers tightened up everything in the sound, thay sound persice rather than hollow.Thank you Dayton!
Rating: [5 of 5 Stars!]
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