Peerless 830878 3-1/2" Passive Radiator

Brand:|Model: 830878
A useful alternative to overlong ports, passive radiators like the Peerless 830878 offer designers a well-proven method of extending and enhancing bass response.
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Part # 264-1060
  • Coated paper cone with rubber surround
  • Low resonance frequency for deepest possible bass
  • Cosmetic surface mount steel frame matches Peerless SDS series
  • Straight-sided frame fits into narrow enclosures and permits tight spacing
  • Compatible with small woofers by Peerless and others

Product Details

Peerless 830878 3-1/2" Passive Radiator

The Peerless 830878 3-1/2" passive radiator is a cosmetic and performance complement to the Peerless SDS Series woofers. Its attractive stamped steel frame, coated paper cone, and rubber surround are visual and performance matches with the Peerless speaker drivers. Passive radiators are a viable alternative to ports whenever duct length exceeds available enclosure space. May be used in multiples to achieve desired performance.

Specifications: • Fs: 29 Hz • Vas: 0.10 cu. ft. • Cms: 791 um/N • Mms: 38.5 g • Rms: 4.8 kg/s • Sd: 50.2 sq. cm. • Dimensions: Outside diameter: 4.85", 4.14" across flats, Cutout diameter: 3.64", Depth: 1.35".

Product Specifications
  • Nominal Diameter3-1/2"
Peerless 830878 3-1/2" Passive Radiator
  • BrandPeerless
  • Model830878
  • Part Number264-1060
  • UPC844632083914
  • Product CategoryPassive Radiators
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight0.3 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 Peerless 830878 3-1/2" Passive Radiator
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Peerless 830878 3-1/2" Passive Radiator
Peerless 830878 3-1/2" Passive Radiator is rated 5.0 out of 5 by 3.
Rated 5 out of 5 by from Hot item!!This product without a doubt extends the bass response of 3" full range drivers.In my case, I used the Fountek FR89EX 3" Full Range - 8 ohm in a one liter sealed box, stuffed with real wool [no static drag on moving air]. The powerful neodymium magnet in the full range seems to control the radiator well. A 3-5/8" hole is all thats needed. I applied some dum dum putty on both baskets to prevent ringing. Have fun! I'll post pic's later.
Date published: 2015-03-02
Rated 5 out of 5 by from Beautiful PR, necessary for many micro designsThere are many small boxes where you simply could not get a port to work. I used this in a 1 liter box (Parts Express 0.04 cu ft knockdown) with a 3" Fountek full range, tuned to 60 Hz. A port would give you chuffing, but this beautiful unit produces a lot of bass. Surprisingly strong bass actually. THE KEY is: I used a MiniDSP 2x4 unit to boost 8dB at 60Hz and a sharp high-pass filter just below that point which is absolutely necessary. I also used the MiniDSP to EQ the driver and these things sound gorgeous.
Date published: 2014-12-20
Rated 5 out of 5 by from Really improves small speaker low endI build a lot of small speaker projects and of course low end is where small speaker simply cannot go by adding one of these to certain enclosures you can add more bass and really improve the sound.
Date published: 2014-10-26
  • 2015-11-30T06:40CST
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  • clientName_PartsExpressInternational

Product Q&A

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Peerless 830878 3-1/2" Passive Radiator

If i were to use one Tang Band W3-2108, would I need one or two passive radiators? Also what size box would you recommend? 

Asked by: Ax2Wb
You will only need one passive with this woofer. I would recommend a volume of 0.08 cubic feet and with no weight added you will have response to about 50 Hz.
Answered by: MattP
Date published: 2015-10-14

Hi. Can you point me to small/mini cabinet design to use one Peerless 830986 3" Full Range Woofer and this Peerless Passive radiator for one side of stereo set up?  Thank you.

Asked by: JEFFERY4343
Please contact our tech support for more help with this question, or 800-338-0531
Answered by: MattW
Date published: 2015-07-23

If I wanted to use this with two Fountek FE83's in a small enclosure, how would I calculate the volume needed for the enclosure? Do I use the suggested sealed or ported volume x2 for the FE83? Do I need one or two of them? Thank you for your help.

Asked by: grouchiolme
The problem with using this passive radiator is that you cannot tune it high enough to work well. I would recommend simply porting the enclosure which will tune to a more reasonable frequency. With two of these drivers in 0.17 cubic feet with a 1-1/2" diameter, 2-1/4" long port you will have a tuning frequency of about 78 Hz.
Answered by: MattP
Date published: 2015-05-21

Recommended net volume for best frequency response with Tang Band W3-881SJF. What f3 would it reach?

Asked by: MrNick105
Recommended with a 0.05Ft3 with a F3 of 97Hz.
Answered by: MattW
Date published: 2015-04-10

As per your suggestion, I purchased the Dayton ND91-4's with the 0.04 knockdown cabinets.  Might I ask what would be the best arrangement for the radiator with respect to the main driver in each cabinet?  

Asked by: SeanMcCauley
Please contact our tech support for more help with this question, or 800-338-0531
Answered by: MattW
Date published: 2015-04-28

If I were to use a single one of these in each of the two 0.04 bookshelf knockdowns, could you recommend a good 3-4 inch speaker? Likely will use a lepai 2020. Thanks! 

Asked by: SeanMcCauley
I would recommend the Dayton ND91-4 for this application. In that enclosure with that passive, it will have a tuning frequency of about 60 Hz.
Answered by: MattP
Date published: 2015-03-17
  • 2015-11-30T07:17CST
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