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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.  
IN STOCK
List Price$32.99
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Part # 295-494
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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
    (20 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 4.45 out of 5 by 20.
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
Rated 5 out of 5 by from A step up.I decided to go with these radiators with the idea my old ESS's could use something better than the old "plate" style(that were shot again, being replaced once before) that had been in them. The quality is so much better with the Dayton's, it's not even funny. But little did I know it was not going to be an easy install when I ordered them. Turns out my old radiators, being the plate type(they are just a flimsy gasket, surround, and a foam flat plate instead of a cone) are about 1/2" smaller than the Dayton's. So the Dayton's would not fit into the routed recess in the cabinet. I contemplated routing out the cabinets, or cutting down the frame of the Dayton's. Then it hit me, I still had the old gaskets from the old radiators, and with some caulk, would sit almost flush reset into the old routed mount in the cabinet. Then put another layer of caulk on top of that and installed the Daytons over the old gaskets, and screwed them down. No problem. Good seal. The bass is better than I ever remember these cabinets sounding. Bass has always been described as "flabby" on almost all ESS's. These were like that too. I would say the bass is not more pronounced, just way tighter. But I am working off of memory here, and lots of things have changed as far as different equipment driving the speakers, and different room etc. It would have been nice to get some kind of explanation of how you are supposed to tune these radiators with the weights you can supposedly attach to them. And what you are supposed to use as weights. But, I'm very happy with what I've got just straight out of the box. If I decide to, I guess I can pull them off and tweek 'em some other time.
Date published: 2009-11-02

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

Can this radiator be paired with the ultimax 10 inch woofer to create a sealed subwoofer?  If so, do you have the plans?

Asked by: CoolGeek
Unfortunately we do not have a passive radiator that will be a good match for the Ultimax 10" at this time. It produces way more cone excursion than any of the passives we offer will be able to handle, with the exception of the TC Sounds VMP 15 or 18" models, but they are too large to work properly.
Answered by: MattP
Date published: 2014-12-10

hello, I plan to use a HiVi SP10 driver in a 2qbf box. which passive radiator is recommended to use with? regards.

Asked by: asher
We don't have any passive radiators that will work well with this driver. The TC Sounds VMP 15" would be the closest option, and even with 500 grams of weight added the tuning frequency is only 30 Hz. It would be much more cost effective to simply add a port that is 4" in diameter and 21" long, which will tune the box to 24 Hz.
Answered by: MattP
Date published: 2014-09-18

I have 2 of these in a 12.5 x 12.5 x 13 inch sealed and a dayton 100 watt amp and classic 10 in sub and the 10 can't produce the lows. What 10 or 8 inch sub would be best for this setup?

Asked by: derek82
I would recommend the SD215A-88 in this enlcosure with 150 grams of weight added to each passive. This will drop the tuning from the current ~55Hz to about 38 Hz.
Answered by: MattP
Date published: 2014-09-15

How many of these would i need to work with a sundown sd-2 8inch subwoofer with 14.5 mm of xmax One way. Also what size enclosure would you recommend and tuning weight?

Asked by: DopeGuy1
I would recommend 0.6 cubic feet total, with two of the 10" passives. You will have to add 200 grams of weight to each for a tuning frequency of 40 Hz and an F3 of 34 Hz.
Answered by: MattP
Date published: 2014-08-18

Hello, so I just recently heard of a passive radiator and was wondering if I can use it in my aplication. I have a 8" w7 in a sealed box that I wanted to use as a home teather subwoofer. Will it be worth cutting up my box? If so which size pr should I use

Asked by: Optomos
The W3 drivers are best suited in sealed enclosures. I you wanted to email tech support with the box volume you have, we can possibly run a model to see how a passive radiator might effect the performance. tech@parts-express.com
Answered by: MattP
Date published: 2014-06-24

The two openings in the bottom of my Velodyne 810X measure 9" and 10".  Will I need to increase the diameter to mount this replacement?

Asked by: kentduffy
The overall frame diameter on this woofer is 10-5/8" so yes, the recessed opening will have to be enlarged to fit this.
Answered by: MattP
Date published: 2014-03-10

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