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Dayton Audio SD270-PR 10" Passive Radiator

Brand:| Model: SD270-PR
Overview
The Dayton Audio Passive Radiators are excellent general-purpose passives suitable for replacement or for new construction.
Part # 
295-494
Weight: 1.5 lbs.  
OUT OF STOCK
Due In: 6/16/2015
List Price$32.99
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Your Price
$26.50
Buy 4-up$25.24
Part # 295-494
Qty:  EA
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Product Details

Dayton Audio SD270-PR 10" 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: 19.5 Hz • Vas: 3.90 cu. ft. • Qms: 2.50 • Cms: 0.67 mm/N • Mms: 100 g • Rms: 4.89 kg/s • Sd: 340 sq. cm. • Xmax: 10 mm • Dimensions: Overall diameter: 10.63", Cutout diameter: 8.94", Depth: 2.81".

 



Product Specifications
  • Nominal Diameter10"
Dayton Audio SD270-PR 10" Passive Radiator
  • BrandDayton Audio
  • ModelSD270-PR
  • Part Number295-494
  • UPC844632000409
  • Product CategoryPassive Radiators
  • Unit of MeasureEA
  • Product Rating
    (21 Reviews)
  • Weight1.5 lbs.
  • Case Qty8
  • 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 SD270-PR 10" Passive Radiator
Dayton Audio SD270-PR 10" Passive Radiator is rated 4.4762 out of 5 by 21.
Rated 5 out of 5 by from Great Quality!I have a pair of Radian Research 2-10-3 loudspeakers. They were made by Becker in the late 70s early 80s. They have two ten inch woofers and a passive on the back. The passives were done and I ordered these as replacements. Super fast shipping and very solid passives. I got them I. Without too much trouble and it completely restored the bass of these speakers.
Date published: 2015-05-09
Rated 4 out of 5 by from Replacement Passive Radiator Hits the mark!Replacing stereo components such as cabinet speakers is for me a on going process. And the advent of the new passive radiator, the screw holes didn't line up, so a little craftiness was no problem to make it fit. The sound is good, no vibration and able to handle my 200 watts.
Date published: 2014-07-16
Rated 5 out of 5 by from Great performerI used this to replace the passive radiator in my 20 year old Velodyne subwoofer. After a little modification to the speaker cabinet opening size, the sub has never sounded better.
Date published: 2014-04-07
Rated 5 out of 5 by from Dayton Audio SD270-PR Passive Radiator ReviewI have a pair of Synergistics speakers from Tokyo Shapiro's in the 80's. The passive radiators were decomposed. I bought a pair of these 10" radiators. I think these speakers are better now than when they were new. Lots of bass and air movement. I plan to replace the 8" Woofers with speakers from Parts Express. Thank you. Would definitely buy again 1000%.
Date published: 2014-01-22
Rated 5 out of 5 by from Good valuePurchased the 10" passive radiator to replace the blown one in my 15 year old Velodyne VA 810 XI subwoofer I am restoring to use with a secondary stereo. It works great with the new driver. Very satisfied.
Date published: 2013-10-17
Rated 4 out of 5 by from VA-8100x replacementI dropped this in to replace my very aged Velodyne, broken, 10" radiator and I was very surprised at the quality of the cone assembly. It's very good. Much better than I would expect at the price point. The surround is pliant and good quality and better than the original. For the price I paid this was a no brainer. I've not taken measurements yet but I'm very happy with the results.
Date published: 2011-03-07
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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 SD270-PR 10" Passive Radiator

I want to build a little 3 speaker system for my patio and I was thinking of using a SD215A in a 1.25ft3 box with a 120 watt plate amp. could I use a SD 270 passive for this or should I use a 12" or should I just port it?

Asked by: golfdaddy52
In that volume I would recommend simply porting the enclosure. A 2-1/2" diameter, 8-1/2" long port will tune the box to 32 Hz.
Answered by: MattP
Date published: 2015-05-26

Regarding the 1.5 cu. ft. Box with 2 w8-740p drivers and 4 of the pr's, do I need to stuff the boxes for best results and if so how much would you suggest?

Asked by: Gilscales
We recommend a half pound of stuffing per cubic foot of airspace to start. There will be very little difference with stuffing amounts in this application.
Answered by: MattP
Date published: 2015-05-13

Would like to build a 1.5 cu. ft. Box with 2 tang band w8-740p drivers and 4 of theses 10" pr's would this work for a car audio sub and if so how much weight would I need to add for proper tuning?

Asked by: Gilscales
This design should work well. I would recommend adding 100 grams to each passive which will tune the enclosure to about 38 Hz.
Answered by: MattP
Date published: 2015-05-09

Would this work with an Infinity Ref 1060w in about .9 cu/ft sealed on 200 watts rms?

Asked by: kb86
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattW
Date published: 2015-03-31

What is the maximin amout of weight (in grams) that can safely be added to this passive radiator?

Asked by: Jam1561
We recommend no more than double the Mms for these passives.
Answered by: MattP
Date published: 2015-02-17

Will this work with the DS-270? If so, what is the recommended box volume?

Asked by: Auburn 77 81
Yes these will work well together. I would recommend 2 cubic feet with no weight added to the passive, for a tuning frequency of 32 Hz and an F3 of 40 Hz.
Answered by: MattP
Date published: 2015-01-30
  • 2015-05-29T10:04CST
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