Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm

Brand:|Model: GW-8PC-30-4
The Heavy Duty PC Series is available in 4 ohm and 8 ohm versions for automotive and home audio applications. The woofers feature aluminum die-cast frames, knurled and gold-plated binding posts, rubber surrounds, and vented pole pieces with bumped back plates.
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Regular Price$41.16
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Part # 290-312

Product Details

Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm

The Heavy Duty PC Series is available in 4 ohm and 8 ohm versions for automotive and home audio applications. The woofers handle the most powerful of amplifiers while maintaining sonic excellence. They feature aluminum die-cast frames, knurled and gold-plated binding posts, rubber surrounds, and vented pole pieces with bumped back plates.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)160 Watts
  • Power Handling (max)330 Watts
  • Impedance4 ohms
  • Frequency Response45 to 7,000 Hz
  • Sensitivity90.9 dB 2.83V/1m
  • Voice Coil Diameter1.5"
  • Magnet Weight30 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)44.2 Hz
  • DC Resistance (Re)3.7 ohms
  • Voice Coil Inductance (Le)1.2 mH
  • Mechanical Q (Qms)5.98
  • Electromagnetic Q (Qes)0.49
  • Total Q (Qts)0.45
  • Compliance Equivalent Volume (Vas)0.75 ft.³
  • Mechanical Compliance of Suspension (Cms)0.36 mm/N
  • BL Product (BL)8.73 Tm
  • Diaphragm Mass Inc. Airload (Mms)36.3g
  • Maximum Linear Excursion (Xmax)3.5 mm
  • Surface Area of Cone (Sd)205.9 cm²
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8"
  • Baffle Cutout Diameter7.125"
  • Depth3.69"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.27 ft.³
  • Sealed F384 Hz
  • Vented Volume0.85 ft.³
  • Vented F344 Hz
Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm
  • BrandGoldwood
  • ModelGW-8PC-30-4
  • Part Number290-312
  • UPC643420100174
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (24 Reviews)
  • Weight5.2 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-8PC-4 8" Heavy Duty Woofer 4 Ohm
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Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm
Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm is rated 4.5417 out of 5 by 24.
Rated 5 out of 5 by from Phenomenal speakerI have used 2 of these to replace the woofers in a 28 year old digital piano Roland HP5000s. These fit perfect with the crossover filter built in the piano, as well as with the volume of the speaker enclosure. The bass is very deep and they reproduce way below 30Hz - I did see them moving in slow motion at 10 Hz - and they go all the way up to 5000Hz. Put them to the test and used RoomEQWizard to fine tune the sound. My piano has a new life and it sounds phenomenal, they really shake the floor.
Date published: 2015-07-16
Rated 5 out of 5 by from Surprising SoundReceived 4 woofers in excellent condition. I used them to re-furbish a pair of Boston Acoustics T1030's. The outside diameter is 8 1/4 inches and not 8 inches as described so I had to modify the cabinets slightly. The build and sound quality are very surprising. I am using a low pass filter with a R Frequency of 500 Hz and the woofers have not missed a beat. The cabinets are sealed NOT ported and the bass is sharp and tight, Could not have asked for a better sound.
Date published: 2014-11-27
Rated 5 out of 5 by from Best so farVery articulate, clean mid-bass that slams to my satisfaction. I use it as my woofer in a 3-way tri-amp system powered by a A500 amp. I tried the Dayton Designer series and they were overpowered with this setup and choked. My system is 2 Canton tweeters, 2 ge8pc-4 and 2 18" classes subs powered with Rocksan 80/ch, A500 200/ch, and crown xls1500 525/ch using MiniDSP for crossovers. This setup sounds awesome. Thanks PE!
Date published: 2014-10-18
Rated 5 out of 5 by from Great replacement woofer for my Allison CD7sRather than repair my 30-year old cone rubber, I decided to replace the entire speaker. As I had the original Allison spec documents, these Goldwood speakers line up almost perfectly technically. More importantly, they sound great. I'm so pleased finding the speakers.PS - I purchased replacement 12-inch woofers for my Allison CD9s a couple years ago from Parts-Express. I recommend them.
Date published: 2014-06-23
Rated 5 out of 5 by from Very low distortion! Very high power handling.The woofer is very low distortion as far as I can tell. The speaker terminals are very nice. The magnet is rather large as well. Very clean sound. No punchy bass but is good enough. Doesn't have enough excursion (3.5mm) to make a whole lot of bass. Guess thats what a sub is for. It doesn't go to 7k hertz or whatever it is. Only about 2.5khz which is good enough to cross with a tweeter. The power handling is very nice as well! Probably more than just about any other one minus the pro speakers. I also love that it is 4 ohms as it produces a bit more volume and is compatible with car amps.
Date published: 2014-01-30
Rated 5 out of 5 by from Fit the Bill NicelyPurchased these to replace worn out Prodigy tower speakers. They sound better than the originals and seem to be a perfect match for the crossover in the towers. I had called PE because I initially could not find an 8 inch speaker in 4 ohm with the power requirement I had. I am running these in part of a 7.1 surround sound powered by a Denon AVR-790 system. All I can say is they ROCK! PE got back to me quickly and I had these speakers in TWO Days, no special shipping. Love these speakers and PE! Thanks!!!!!
Date published: 2013-03-08
  • 2015-11-25T06:36CST
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Product Q&A

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Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm

Im looking at this driver as a replacement for the Bose subwoofer im my Audi.  This would be mounted using the housing from the factory speaker in an IB configuration with no more than a 200w amp driving it.  Would this driver be suitable?

Asked by: SC9541
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: 2015-06-01

I need to replace 4 ( 8" 4 ohm) for my infinity Kappa 80. Would these be the ones? Thanks Albert

Asked by: Albertd
Hi - Albert again.I am wondering if refoaming a good alternative. The downside is that they will have to be re done again in 8 years or so. While the ones with rubber will last munch longer. Is this right?Also if you have the speakers I needand install them, will a shop also need to balance them.Thank - you.
Answered by: dudleyalbert
Date published: 2015-04-13

I require the outside diameter to be exactly 8 inch's. Is the "Goldwood GW-8PC-4 8" Heavy Duty Woofer 4 Ohm" exactly 8 inch's outside diameter? Fitting Boston Acoustics T1030 woofers.

Asked by: 14Marines
Yes these have a diameter of exactly 8".
Answered by: MattP
Date published: 2014-10-07

Is this driver optimized for sealed or ported. I'm about to build a enclosure for them and am going back and forth sealed of ported. I would build it to your recommendations and tune it to 44hz. I have a minidsp so I can send them any signal at any slope.

Asked by: shuman
This will work well in either type but you will get more useful bottom end in a ported enclosure.
Answered by: MattP
Date published: 2015-04-15

Expected performance from 2 of these connected in series for a 8 ohm load in a MTM 42" tall tower with 275-070 tweeter and 260-142 crossover? The tower will be divided at about 34" so the woofers can get their own 2 ft3 compartment with 2"x2" round port.

Asked by: Big_Louis_1971
Unfortunately we cannot say how the speaker as a whole will sound, but the box and port configuration looks good for a pair of those. You will have an F3 of 44 Hz and a tuning frequency of 33 Hz.
Answered by: MattP
Date published: 2014-08-11

I'm looking to replace the warn out woofer in my Allison CD7 speakers. After 30 years the 8" rubber cone is cracked. I believe specs are 4 ohm. What are suitable replacements? I'm looking at GW-8PC-30-4. What's your advice?

Asked by: BBRandy
This might be a good option. The main thing to check would be the actual driver dimensions. There is some variation on speaker frames so the outside diameter and cutout is important
Answered by: Chrisf
Date published: 2014-06-06
  • 2015-11-25T07:03CST
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