Goldwood GW-215/8 15" OEM Woofer 8 Ohm

Brand:|Model: GW-215/8
These low frequency OEM drivers are ideal for the customer who is looking for inexpensive replacement woofers.
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Regular Price$39.41
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Part # 290-345

Product Details

Goldwood GW-215/8 15" OEM Woofer 8 Ohm

These low frequency OEM drivers are ideal for the customer who is looking for inexpensive replacement woofers. Each woofer features a poly-laminated paper cone, vented pole piece, moisture resistant poly foam surround, and stamped steel frame.

Product Specifications
  • Nominal Diameter15"
  • Power Handling (RMS)135 Watts
  • Power Handling (max)250 Watts
  • Impedance8 ohms
  • Frequency Response22 to 3,000 Hz
  • Sensitivity87.8 dB 2.83V/1m
  • Voice Coil Diameter1.5"
  • Magnet Weight20 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)29.5 Hz
  • DC Resistance (Re)7.1 ohms
  • Voice Coil Inductance (Le)0.9 mH
  • Mechanical Q (Qms)7.09
  • Electromagnetic Q (Qes)2.69
  • Total Q (Qts)1.95
  • Compliance Equivalent Volume (Vas)12.94 ft.³
  • Mechanical Compliance of Suspension (Cms)0.38 mm/N
  • BL Product (BL)6.09 Tm
  • Diaphragm Mass Inc. Airload (Mms)75.7g
  • Maximum Linear Excursion (Xmax)3.5 mm
  • Surface Area of Cone (Sd)823.42 cm²
Materials of Construction
  • Cone MaterialTreated Paper
  • Surround MaterialFoam
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter15"
  • Baffle Cutout Diameter13.75"
  • Depth5.1875"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume3.93 ft.³
  • Sealed F339 Hz
  • Vented Volume282.1 ft.³
  • Vented F315 Hz
Goldwood GW-215/8 15" OEM Woofer 8 Ohm
  • BrandGoldwood
  • ModelGW-215/8
  • Part Number290-345
  • UPC643420100488
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (11 Reviews)
  • Weight5.9 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-215/8 15" OEM Woofer 8 Ohm
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Goldwood GW-215/8 15" OEM Woofer 8 Ohm
Goldwood GW-215/8 15" OEM Woofer 8 Ohm is rated 4.5455 out of 5 by 11.
Rated 4 out of 5 by from Cool!Bought a pair a little over a year ago, installed them, but noticed one never sounded quite right. Finally got around to messing with them yesterday. After checking wiring and swapping woofers, I determined that the one speaker was "off." Just ordered a replacement, so hopefully all is well.
Date published: 2014-04-06
Rated 5 out of 5 by from I love it when a plan comes together!I purchased these as replacements for a couple of Optimus 1050's someone gave me, based on the frequency range, magnet size and of course, the price. Although not the warm, sweet lows we veterans prefer, they are perfect for my son with his high tech computer program and his love of the metal genre. He says he is hearing much greater definition with the bass drum kick and the bass guitar riffs. He is driving them with an 80 watt receiver, hardly sufficient to push them to peak potential. I see very little cone movement and, they sound better and better as the volume is increased, so more power is a definite option. You ain't gonna find a perfect match in terms of Fs/internal volume, etc., when replacing older woofers, but these are about as good as it gets. I give them an overall 5, my son, who does the final recording mixes for my brother's recording studio, gives them a WOW! With the smaller magnet, the frequency range topping out at 2700 (dedicating the woofer solely to the lower frequencies), these appear to be an incredible find - a true high efficiency speaker that doesn't require a ton of power to drive it. You won't find a better speaker at this price.
Date published: 2011-11-18
Rated 5 out of 5 by from Great product and valueJust what I wanted for a replacement speaker.
Date published: 2009-12-03
Rated 4 out of 5 by from Excellect Experience and ProductI had forgot how good my speaker could sound. The Goldwood Woofer is an excellect performer. I am in love with my system again.
Date published: 2009-11-09
Rated 5 out of 5 by from awesome sound for a low pricei used these speakers to replace the busted one's in my mach one cabinets and they are truly awesome sounding, they will vibrate every wall in the house, no complaints from me and well worth the money.
Date published: 2009-01-25
Rated 4 out of 5 by from U need a Huge sealed box, but they sound goodThe surrond and the basket are cheep. The qts is so high u need a massive sealed enclosure(only way it will sound good!!!). Specs call for like 8.7 cu/ft min but I went with 10.2 CuFt sealed/internal-baffled/tuned for 27hz box, and they sound great at any volume, this speaker is not for everyone but in my 3way setup with 180 watts thru it, it vibrates my house, or rocks out at a low volume with clarity. Great for big PA boxes!
Date published: 2009-01-16
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Product Q&A

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Goldwood GW-215/8 15" OEM Woofer 8 Ohm

How would these work for an OB sub panel. Using an active DSP I have a big mono amp dedicated to power it to overcome the low sensitivity. Will I run into trouble with the low xmax?

Asked by: jmccanna
Yes, the low Xmax will be the problem here. This woofer will work well for an OB application, but in order to get any output at low frequencies, multiple woofers would be required.
Answered by: MattP
Date published: 2015-05-14

Can these (GW-215/8) be used for a PA system, for music (vocals) and will hold up and give a rich bass sound?.......thx.

Asked by: Anonymous
I would not recommend using these in a PA system due to the low sensitivity and large box volumes required.
Answered by: MattP
Date published: 2014-08-18

What would be the best way to optimize this speaker cabinet size? Depth? Width? Height? Thanks.

Asked by: Grunf
This woofer will work best in 3 to 4 cubic feet sealed and heavily stuffed. You can expect room response to reach into the 30's.
Answered by: MattP
Date published: 2014-08-04

Sorry for asking again, but I forgot something... Can I use 2 or 3 of these woofers with B&G RD Planar drivers in an actively Bi-amplified/ Actively Xoverded OPEN BAFFLE project??? Open baffle was the missing element in the original question..

Asked by: JulioPR
Yes these will work well for an open baffle project.
Answered by: MattP
Date published: 2014-04-09

Can I use 2 or 3 of these with any of the B&G RD planar drivers actively XOvered and bi-amplified?

Asked by: JulioPR
Answered by: MattP
Date published: 2014-04-08

comparing woofers with the same specs in the same box with the same power, will a woofer with 90 db sensitivity sound twice as loud as a woofer with 87 db sensitivity?

Asked by: Jared007
In theory yes, this is the case. Although 3 dB in sensitivity almost never directly relates to an actual 3 dB change. 3 dB is double power, although the audible threshold that is considered "half" or "double" volume is actually 10-12 dB.
Answered by: MattP
Date published: 2014-01-06
  • 2015-11-26T07:25CST
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