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6-1/2" Poly Cone Midbass Woofer 4 Ohm

Overview
This buyout 6-1/2" woofer is the perfect replacement for worn, tired sealed bookshelf speakers. The extended frequency response allows it to mate well with tweeters without a low pass filter. Save nearly 60% off the original retail price through this Parts Express exclusive buyout.
Highlights
  • Smooth, natural response doesn't require a low-pass filter
  • Decent Xmax for good bass response
  • Designed for use in sealed cabinets
  • Save nearly 60% off the original retail price!
Part # 
299-609
Weight: 1.8 lbs.  
IN STOCK
List Price$14.99
Regular Price$26.00
You Save81%
Sale Price
$4.88
Buy 25-79 $3.99
Buy 80-up$3.20
Part # 299-609
Qty:  EA
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Product Details

6-1/2" Poly Cone Midbass Woofer 4 Ohm

This durable 6-1/2" poly cone woofer with rubber surround is designed to work best in small, sealed bookshelf-style cabinets. The damped poly cone creates smooth sound from 45 Hz all the way up to 3,000 Hz and is easy to integrate with many different tweeters, and the 4 ohm impedance extracts more current from an amplifier for twice the output (3 dB increase), when compared to a similar 8 ohm speaker.

A 1" voice coil is combined with an aluminum former for a power handling rating of 30 watts RMS and 60 watts max, and the "Q" of the motor is such that solid bass performance can be achieved in cabinets as small as 0.25 cubic feet, with an f3 of 63 Hz (with a 1/4 pound of acoustic fill).

Save over 50% off the original price through this exclusive factory buyout. 



Product Specifications
  • Nominal Diameter6-1/2"
  • Power Handling (RMS)30 Watts
  • Power Handling (max)60 Watts
  • Impedance4 ohms
  • Frequency Response50 to 6,000 Hz
  • Sensitivity88.3 dB 2.83V/1m
  • Voice Coil Diameter1"
Thiele-Small Parameters
  • Resonant Frequency (Fs)52 Hz
  • DC Resistance (Re)3.37 ohms
  • Voice Coil Inductance (Le)0.48 mH
  • Mechanical Q (Qms)2.99
  • Electromagnetic Q (Qes)1.4
  • Total Q (Qts)0.95
  • Compliance Equivalent Volume (Vas)0.65 ft.³
  • Maximum Linear Excursion (Xmax)3.5 mm
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerAluminum
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter6.5"
  • Baffle Cutout Diameter5.625"
  • Depth2.875"
  • Bolt Circle Diameter6.125"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume1.53 ft.³
  • Sealed F349 Hz
  • Vented Volume3.64 ft.³
  • Vented F330 Hz
6-1/2" Poly Cone Midbass Woofer 4 Ohm
  • BrandFactory Buyouts
  • Part Number299-609
  • UPC848864006864
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (33 Reviews)
  • Weight1.8 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

6-1/2" Poly Cone Midbass Woofer 4 Ohm
6-1/2" Poly Cone Midbass Woofer 4 Ohm is rated 4.4242 out of 5 by 33.
Rated 4 out of 5 by from GoodBought 8 of these for an open baffle project, 4 low range drivers per channel. In the process of breaking them in as we speak. Have them series/parallel wired for a 4 ohm load, low cut-off is 60hz, and crossed at 200hz at the top end. That way, this handily avoids the 52hz resonant frequency, yet still provides a decent amount of bass content. So far, they are doing well. Hopefully they will open up a little as break-in progresses. Not quite the openness yet of the Visaton FR13 full ranger, but definitely more bass presence.
Date published: 2014-12-27
Rated 4 out of 5 by from nice little speakergot a couple to reload so old scottts enclosures..cant go wrong for the money..this was a sealed box design..sound just fine
Date published: 2014-12-19
Rated 4 out of 5 by from Well Worth it!Bought 2 of these last week and installed them into my 2002 Dodge Ram front doors as components (with adapter plates). I already had Jensen JXR235 tweeters in the dash. These Midranges make a nice compliment to the overall sound...MUCH better than the cheap 6x9's I had in there. It was necessary to adjust my passive equalizer UP on the 60 and 150 Hz, as these are run thru an amp. Also adjusted the 400 Hz, 1 KHz, and 3 KHz DOWN to make a nice flat sound for these speakers. Works very well for rock, country, jazz, and classical. Don't know about electronica or hip-hop though. I highly recommend these for good sound. They aren't high end car speakers, but work great for the cost. Very satisfied customer.
Date published: 2014-12-14
Rated 5 out of 5 by from Very good for a budget-conscious sealed speakerI've paired these inexpensive woofers with Visaton polycarbonate tweeters as a challenge to see how much can be achieved for little $$$, using a set of Baby Advent II cabinets. Mission accomplished, I'd say!They are performing extremely admirably as we watch an NFL television broadcast. Play-by-play announcing above crowd noise is robust and perfectly intelligible. Bass in this .33 cu ft, heavily stuffed sealed cabinet is absent of any rude, boomy peaks and extends lower than I had expected. Higher frequencies transition smoothly into the tweeter's range. Easily, money well spent.
Date published: 2014-11-27
Rated 2 out of 5 by from works well from 80hz to 4k hzbought 24 of this speaker to attempt a party tailgate project on the rear doors of my suburban - un fortunately i have not found a way to keep them from sounding distorted and un happy below 80hz - if i had known this i might of went with 8" size speakers instead but luckly i can just tune my crossover network to drop like a rock at 80hz and let them play with a mild slope in the upper range starting at 4k ish. ended up using 9 on each rear door sealed in stereo left and right - will post a pic when finished i hope it works out better than my test bench enclosures ive tried them in
Date published: 2014-11-27
Rated 5 out of 5 by from You won't do better for $5Bought a pair of these to use in an old pair of Zenith Omnidirectional speakers. First off thanks PE as always for accurate info, these were the exact dimensions noted and thus fit my project perfectly. I mounted some 1/2" Tang Band tweeters on a thin aluminum rod in the center of these firing up through a new grille into the diffuser, simple first order XO at 5k. Sound much better than they should, very impressed with how clean they are crossed this high, I know that if they weren't in an omni it might be a different story on axis, but the bass and mid bass is quality as well for such a cheap driver. Highly recommended!
Date published: 2014-11-02

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.
6-1/2" Poly Cone Midbass Woofer 4 Ohm

Are these woofers candidates for a compound woofer set-up? I kinda feel like 1.5 cf box is too big for a small speaker. Now 0.75 cf in a compound speaker is acceptable. Especially since they are only $5 each. Any thoughts out there?

Asked by: irubik and iclone4 guy
This should work fine in a compound isobaric setup as long as you aren't looking for huge amounts of output. A pair of these compound loaded will only require 0.5 cubic feet and have an F3 of about 54 Hz.
Answered by: MattP
Date published: 2015-01-06

building a 2way speaker set up using these woofers wired in parallel with this tweeter Part # 279-002  is this going to be okay being that the woofer is 4ohm and the tweeter is 8ohm? 

Asked by: beasten25
Yes this will work fine, the impedance different will not effect anything. Make sure you have a crossover on the tweeter for protection.
Answered by: MattP
Date published: 2014-12-31

Any point in considering these for open baffle? Fairly high Q, and efficiency. Thinking of stringing up to 4 of these for each channel -- target load being 4 ohms, band passing them around 60Hz, and high passing the full range driver at 200Hz.

Asked by: ibroke
These should work well open baffle, especially used in multiples and high passed at 60 Hz.
Answered by: MattP
Date published: 2014-12-04

Sealed or Ported? Looking at building 4 speakers for about a 20'x30' room that will be in the corners of the shop. Would a ported or sealed configuration work better for this? All types of music, some is somewhat bass heavy like hip hop, techno, etc.

Asked by: xb2fergie
These woofers like a sealed enclosure, roughly 0.5 cubic feet each. Porting will give you a bloated bass sound and limit overall power handling.
Answered by: MattP
Date published: 2014-11-24

9 of this speaker in sealed box final load of 4 ohms - shared air space - what should my cubic ft goal be to build to for strong response from 80hz and up ?  i hear shared enclosure of multiple woofer reacts diffrently than single ?

Asked by: brian84corvette
You will get the same extension with multiple woofers as you would with one, but your overall sensitivity will go up. The optimal volume for nine of these is almost 7 cubic feet, but if you are only interested in getting to about 80 Hz, you can cut this volume down significantly. Anything between 1.5 and 2 cubic feet will give you extension to 80 Hz, I would recommend heavy fill.
Answered by: MattP
Date published: 2014-11-03

Would these be good replacements for boston acoustics A40 speakers?

Asked by: Tazman
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: MattP
Date published: 2014-11-21

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