Goldwood GW-215/40/8 15" OEM Woofer 40 oz.

Brand:|Model: GW-215/40/8
This low frequency general-purpose woofer is ideal for the customer who is looking for an inexpensive replacement driver. A larger 40 oz. magnet gives more cone control and tighter bass.
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Buy 4+$43.52
Part # 290-346

Product Details

Goldwood GW-215/40/8 15" OEM Woofer 40 oz.

This low frequency general-purpose woofer is ideal for the customer who is looking for an inexpensive replacement driver. Each woofer features a treated ribbed paper cone, vented pole piece, moisture resistant poly foam surround, and stamped steel frame. This woofer features a larger 40 oz. magnet for more cone control and tighter bass.

Product Specifications
  • Nominal Diameter15"
  • Power Handling (RMS)150 Watts
  • Power Handling (max)300 Watts
  • Impedance8 ohms
  • Frequency Response20 to 2,500 Hz
  • Sensitivity89.6 dB 2.83V/1m
  • Voice Coil Diameter1.5"
  • Magnet Weight40 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)30.53 Hz
  • DC Resistance (Re)7.15 ohms
  • Voice Coil Inductance (Le)0.84 mH
  • Mechanical Q (Qms)5.15
  • Electromagnetic Q (Qes)1.38
  • Total Q (Qts)1.09
  • Compliance Equivalent Volume (Vas)9.22 ft.³
  • Mechanical Compliance of Suspension (Cms)0.27 mm/N
  • BL Product (BL)9.93 Tm
  • Diaphragm Mass Inc. Airload (Mms)99g
  • Maximum Linear Excursion (Xmax)3.5 mm
  • Surface Area of Cone (Sd)823.4 cm²
Materials of Construction
  • Cone MaterialTreated Paper
  • Surround MaterialFoam
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter15"
  • Baffle Cutout Diameter13.75"
  • Depth5.5"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume8.67 ft.³
  • Sealed F332 Hz
  • Vented Volume61.07 ft.³
  • Vented F317 Hz
Goldwood GW-215/40/8 15" OEM Woofer 40 oz.
  • BrandGoldwood
  • ModelGW-215/40/8
  • Part Number290-346
  • UPC643420100761
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (38 Reviews)
  • Weight8.86 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 Goldwood GW-215/40/8 15" OEM Woofer 40 oz.
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Goldwood GW-215/40/8 15" OEM Woofer 40 oz.
Goldwood GW-215/40/8 15" OEM Woofer 40 oz. is rated 4.3421 out of 5 by 38.
Rated 5 out of 5 by from Breathed new life into my "vintage" Optimus 1050'sActually, a Google search for my speakers found a couple other reviews here who used these as replacements for the originals whose foam surrounds have disintegrated. Larger magnet, and a thicker, smoother low frequency response. Like mentioned there, I had to enlarge the opening a bit. When I cranked them up, one cabinet had a bad buzz; turns out I had to add some screws to keep the cabinet from shaking apart! I now hope to get another 20+ years out of these in my basement "rec room". Great value for the $$$.
Date published: 2014-11-09
Rated 5 out of 5 by from 15" 5-way SystemI purchased a pair of these for a set of 15" 5-way Infinite Baffles (sealed enclosures) that I built some time ago, and still can't get over how good they sound. These enclosures are 28" high X 18" wide X 13" deep. Each include a 15" Goldwood GW-215/40/8 Woofer, 6-1/2" Lower Mid, 5" Upper Mid, two 4" Phenolic Ring Tweeters (4 ohms in series), and a Goldwood GT-1005 Piezo Tweeter. They are loosely stuffed with fiberglass insulation, with the Mids each in their own enclosure. Crossovers are 12 dB per octave (custom wound Inductors) with Mid and High Range L-pads. Awesome Sound!
Date published: 2013-08-10
Rated 5 out of 5 by from 15" Woofer 290-346I haven't used my old Gemini speakers in years. I was going to throw them out but always loved the sound and decided to replace the dried out woofers. I received in 2 days installed them in 5 minutes and the sound was terrific, just like new. These speakers are 25+ years old and they sound great. This replacement woofer unbelievable for the price. Thanks Parts Express...
Date published: 2013-07-23
Rated 5 out of 5 by from Awesome Speakers!I bought these speakers as replacements for the 15" woofers in a pair of Pioneer boxes, backed by a Kenwood Stereo/Receiver and they put out amazing sound!
Date published: 2012-07-01
Rated 5 out of 5 by from good replacement speakersI had couple old Pioneer CS-D9900 speakercabinets and the old speakers were blown and i bought and installed these and they sound amazing and they are priced pretty good. I was impressed by the sound when i heard the sound and it has a nice clean base. I am happy with them.
Date published: 2012-01-21
Rated 5 out of 5 by from Great valueI purchased these to replace both 15" woofer's from my Radio Shack Optimus 1050 tower speakers. As another reviewer stated these speakers are about 1/4 wider than the original speakers. My only option was to either trim out the speaker cabinet for them to fit or return them and get a refoam kit. I decided to trim out the cabinet. Had to use a serated knife to do it because I don't have a saw, however, I managed to trim it out perfectly for the new speakers to fit. Then it was a matter of drilling new holes and cutting and splicing the speaker wires to fit.All in all it was worth it. These speakers sound great and the quality of construction appears to be pretty good. I've had them turned up very loud and tested them with various types of music and popped in a couple of Blu-ray movies to test how they handle the bass from surround sound. No complaints at all! They sound great! So, if you have the old Radio Shack Optimus 1050 Tower speakers and don't mind having to trim out your cabinet to get them to fit then these speakers are a great deal and worth the money! And you will need a couple of extra screws as well. The old speakers were held in buy 6 screws, these take 8. Overall, great purchase!
Date published: 2011-11-23
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Product Q&A

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Goldwood GW-215/40/8 15" OEM Woofer 40 oz.

Hi, I want to build either a vented or sealed box for this speaker. I tried using it as an open-baffle and just cannot fill out the sound that way. I do not have room for a fully vented box. What would I get at 27cu/ft vented and sealed?

Asked by: jmccanna
That volume is quite a bit larger than the sealed recommendation and quite a bit smaller than the vented. This woofer is not a great candidate for a vented design. I would recommend keeping it sealed, you could get away with four of these in that volume and have good results. With one your F3 is 28 Hz, but your power handling is very low. In that volume the woofer will reach Xmax with only 15 watts of power.
Answered by: MattP
Date published: 2015-01-19

Could I use this speaker for a replacement woofer on a vintage Peavey TKO 75 guitar amp?

Asked by: just_reboot
We do not have a cross reference available for this type of thing. Please contact our tech support for more help with this question, or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-12-24

With a QTS at 1.09 would this be recommended for an open-baffle mono subwoofer? I made a pair of open-baffle 2-Way speakers and think this might marry up well mounted on a 2 x 4 foot floor panel........

Asked by: jmccanna
A quick search of the internet finds that this is a common use for this and similar high-Qts drivers. I think this woofer should work well in your application.
Answered by: DaytonAudio_Rory
Date published: 2014-12-02

I see reports of woofers crossed as low as 125Hz so if this one is rated at 20Hz to 2.5kHz what governs the crossover point? I'm using a Selenium D250x as a midrange with appropriate horn.The woofer is in an H frame a la Martin Kings work.Appreciate help

Asked by: tomwardusmc
The crossover point is governed by passive crossover components, which at 125 Hz would be quite large, or an electronic crossover if used in a multi amp system.
Answered by: MattP
Date published: 2014-09-05

MMS wrong? Diaphragm Mass Inc. Airload (Mms) 0.07g

Seems to low for a 15" woofer.less that 1gram of air??
Asked by: Ultuma
This is a typo on Goldwoods spec sheet that was mistakenly transferred to our website. Actual measured Mms is 110 g.
Answered by: MattP
Date published: 2014-09-05

use in 2 way pa speakers?

Could I replce old drivers in a 2 way pa system with thease woofers? There are no crossovers in the speakers either.thanks
Asked by: basshead
Well, you kinda got me on this one. I have to believe there is some sort of crossover, no matter how simple, inside the speaker. Is the tweeter a piezo? (no magnet structure on the back) If so that may explain it. Anyway, yes, you could, but it would need to be a decent size box, preferably a ported one. Plus, this speaker is "rated" up to 2,500hz, which is about were 2 way PA cabs would be crossed over anyways. Just don't hook it up to a very high powered amp unless it has limiters on it.
Answered by: metalman
Date published: 2014-09-05
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