Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm

Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm

Brand:| Model: GW-204/8S
Overview
The poly-laminated paper cone, treated foam surround, and polymer dustcap give these drivers a very smooth frequency response with minimal cone breakup. The shielded magnet structure of this driver makes it great for A/V applications.
Highlights
  • Shielded design for extra sensitivity and close placement to sensitive TVs or computers
  • Smooth frequency response
  • Pincushion frame for close center-to-center speaker placement
Part # 
290-372
Weight: 1.4 lbs.  
OUT OF STOCK
Due In: 7/24/2014
Your Price
$11.28
Buy 4-up$10.19
Part # 290-372
Qty:  EA
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Product Details

Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm

The poly-laminated paper cone, treated foam surround, and polymer dustcap give these drivers a very smooth frequency response with minimal cone breakup. The shielded magnet structure of this driver makes it great for A/V applications.



Product Specifications
  • Nominal Diameter4-1/2"
  • Power Handling (RMS)40 Watts
  • Power Handling (max)70 Watts
  • Impedance8 ohms
  • Frequency Response70 to 13,000 Hz
  • Sensitivity86 dB 1W/1m
  • Voice Coil Diameter1"
  • Magnet Weight10 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)136.9 Hz
  • DC Resistance (Re)7.3 ohms
  • Voice Coil Inductance (Le)0.2 mH
  • Mechanical Q (Qms)6.82
  • Electromagnetic Q (Qes)2.02
  • Total Q (Qts)1.56
  • Compliance Equivalent Volume (Vas)0.04 ft.³
  • Mechanical Compliance of Suspension (Cms)0.28 mm/N
  • BL Product (BL)3.9 Tm
  • Diaphragm Mass Inc. Airload (Mms)4.9g
  • Maximum Linear Excursion (Xmax)1.5 mm
  • Surface Area of Cone (Sd)53.52 cm²
Materials of Construction
  • Cone MaterialTreated Paper
  • Surround MaterialFoam
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter4.125"
  • Baffle Cutout Diameter4"
  • Depth2.5625"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.02 ft.³
  • Sealed F3154 Hz
  • Vented Volume0.57 ft.³
  • Vented F372 Hz
Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm
  • BrandGoldwood
  • ModelGW-204/8S
  • Part Number290-372
  • UPC643420100365
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (38 Reviews)
  • Weight1.4 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm
Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm is rated 3.9737 out of 5 by 38.
Rated 5 out of 5 by from Replacement woofer for Optimus Pro 77These work great in my Optimus Pro 77 speakers. The original woofer is 5 in. and these are 4 in. so I made an adapter out of sheet metal. They have great sound.
Date published: 2013-09-02
Rated 3 out of 5 by from i didn't care for them in my minimus 7I didn't think they were anywhere near sounding like the original minimus 7 . I forget what they call the power rating on this but I was running it with a crossover I put in the minimus 7 and I didn't think I was pushing it and I blew one of them . The stock speaker I continued to push a little more after that and it survived . The funny thing the stock woofer I think says 10 watts on it , but they rate the minimus 7 at 40 ??? I did see on a couple different sites they called this speaker a mid woofer which is probably a better name for it . I don't know about all the different specs but maybe according to the specs it's got good bass but I didn't think it had much . Playing it side by side with the minimus 7 with it's stock speaker reinstalled there is what I consider to be a big difference in the sound of each of them . I know a lot of people like them as a drop in replacement , but they just didn't do it for me .
Date published: 2013-08-10
Rated 5 out of 5 by from Great replacement speakers for my Koss M65 PlusGreat replacement speakers for my Koss M65 Plus bookshelf speakers. Exact fit except for one of the terminals which is easy enough to work around with a new crimp connector.
Date published: 2013-03-17
Rated 3 out of 5 by from Not a replacement for Minimus 7This speaker works ok, but is not a good replacement for a Radio Shack Minimus 7. It is not efficient enough, much less so than the original woofer.
Date published: 2012-04-30
Rated 1 out of 5 by from Crummy soundI used these speakers to replace some drivers in a project I built 15 years ago. The original drivers I used were also cheap, but sounded much better than these. They seem to have no mid-bass response and the lower bass is absent completely. They may handle a lot of power but they don't do anything with it. The upper midrange is not bad, but that is about all they have going for them. There are certainly better inexpensive 4" drivers.
Date published: 2011-10-22
Rated 4 out of 5 by from Good replacementI used these to replace some blown speakers out of some polk towers. I needed to do this on a budget and these were my best option do to the ohms needed and the fact that the cabinents are aluminum so i couldnt very easily change the cut out. after alittle creative thinking these fit well and sound pretty close to the originals not as much low end but for a 4" driver not much was expected. Overall very pleased to be able to fix a higher end pair are towers for only $20
Date published: 2011-07-27

Product Q&A

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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.
Goldwood GW-204/8S 4" Shielded Poly Woofer 8 Ohm

what is the diagonal distance between the screws holes?

Asked by: alex1970
Screw holes are on a 4-1/2" circle.
Answered by: MattP
Date published: 2014-05-06

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