Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm

Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm

Brand:| Model: GW-8028
Overview
Goldwood's GW-8028 8" driver is an ideal woofer for replacing and upgrading old, worn out drivers. They all feature a polypropylene cone, vented pole piece, foam gasket, soft poly dust cap, and stamped steel frame.
Highlights
  • Polypropylene cone and rubber surround resist fatigue
  • Designed for optimum response in sealed enclosures and free air use
  • Vented pole piece for reduced compression noise
Part # 
290-355
Weight: 3.45 lbs.  
IN STOCK
Your Price
$25.96
Buy 4-up$23.60
Part # 290-355
Qty:  EA
Available Payment Methods

Product Details

Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm

Butyl rubber surrounds are superior to foam in two important ways. First, the butyl rubber resists moisture and will not dry rot, providing years of service. Second, the rubber surround, due to its superior damping characteristics will greatly reduce cone break up and ensure low distortion. These woofers are ideal for replacing and upgrading old, worn out drivers. They all feature a polypropylene cone, vented pole piece, foam gasket, soft poly dust cap, and stamped steel frame.



Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)100 Watts
  • Power Handling (max)190 Watts
  • Impedance8 ohms
  • Frequency Response35 to 2,500 Hz
  • Sensitivity84 dB 2.83V/1m
  • Voice Coil Diameter1.5"
  • Magnet Weight20 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)36 Hz
  • DC Resistance (Re)7.2 ohms
  • Voice Coil Inductance (Le)0.5 mH
  • Mechanical Q (Qms)3.9
  • Electromagnetic Q (Qes)1.21
  • Total Q (Qts)0.92
  • Compliance Equivalent Volume (Vas)1.54 ft.³
  • Mechanical Compliance of Suspension (Cms)0.73 mm/N
  • BL Product (BL)6 Tm
  • Diaphragm Mass Inc. Airload (Mms)26.9g
  • Maximum Linear Excursion (Xmax)2.5 mm
  • Surface Area of Cone (Sd)218.2 cm²
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8"
  • Baffle Cutout Diameter7.25"
  • Depth3.625"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume1.85 ft.³
  • Sealed F341 Hz
  • Vented Volume7.34 ft.³
  • Vented F323 Hz
Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm
  • BrandGoldwood
  • ModelGW-8028
  • Part Number290-355
  • UPC643420100303
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (64 Reviews)
  • Weight3.45 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

Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm
Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm is rated 4.4062 out of 5 by 64.
Rated 5 out of 5 by from look goodwork with my optimus speakers and sound great look great
Date published: 2014-12-08
Rated 5 out of 5 by from It fit!Very fast shipping. The speaker fit right in the hole,no modifications necessary. Even the mounting holes lined up. Speaker sounds great.
Date published: 2014-07-28
Rated 4 out of 5 by from No complaints this timeThe sound of these speakers amazed me. I almost didn't have to use my powered sub base box because of the incredible sound range. I have them crossed over but I am not sure at what frequency because they were replacements. I'm breaking them in using a 40 Hz pure tone bass.
Date published: 2014-07-22
Rated 5 out of 5 by from great oem replacement and or upgradeinstalled these babys into a older toyota celica with the subs in front doors... these woofers fit without much modification and sound extremely better than the oem. system responds down past 40Hz with ease!
Date published: 2014-04-02
Rated 5 out of 5 by from Solid soundI purchased a pair of these to replace the woofers in a pair of KLH Model 32 speakers that were originally part of a system purchased in 1975, or thereabouts. One of the original woofers had weather damage and was distorting. These GW-8028s dropped right in, and matched the output of the original tweeters nicely. The low end is very crisp; not muddy in the least. I first compared several 8" woofers on specs and believed these Goldwood replacement would be the best match for the originals. My suspicions were spot on, as they sound absolutely amazing.
Date published: 2014-03-01
Rated 4 out of 5 by from Worth the moneyMy older Advent speaker's drivers gave up after their long service. Spent some time looking on the internet for the right driver replacement. I located what I was looking for on a Parts Express. I decided to give a shot and I ordered two Goldwood GW 8" - 8028 Butyl Surround Woofer drivers from them. Finally when they arrived I was surprised how well they were build and looked. Installed new drivers and I was surprised how well they worked considering that they were not that expensive. I believe that they work actually better then the old woofers, will see how long they will last.
Date published: 2013-09-28

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.
Goldwood GW-8028 8" Butyl Surround Woofer 8 Ohm

These speakers seem to match perfectly with the replacement speakers for EVENT 20/30's. My main concern is will i be able to put the shielding from the old speaker onto these speakers. These speakers look identical right down to the piston diameters etc. 

Asked by: AB TEX
In order to properly shield a speaker you have to use a bucking magnet that is glued to the existing magnet, in the direction that they are forcing themselves apart. You will only need a shielded driver if the speakers are very close to an older CRT type television or monitor, they do not effect a flat screen TV.
Answered by: MattP
Date published: 2014-12-08

I have a pair of KLH 900B's with one woofer bad. Would this speaker work and should I replace both?

Asked by: jake77
Yes these should work well as a replacement for those. I would recommend replacing both.
Answered by: MattP
Date published: 2014-12-11

I am looking for an 8" woofer as a replace for the speaker in my Bose 301 Series ll 8 ohm speaker= rated for 10-75 Watts RMS, Cross over 1.5 kHz and 2.5 kHz, port-ducted enclosure.  Would this be a suitable replacement woofer?

Asked by: ChiefEd
These are a very popular choice for the Bose 301 speakers.
Answered by: MattP
Date published: 2014-02-17

What is the optimum internal volume of a cabinet for two of these?

I am intending to build two cabinets with two woofers in each. They are to be used as my surround speakers, and modeled after my Infinity Column II's I bought back in the '70's. They have tens in them and are about a foot square and 40 inches tall. I would like the finished product to be roughly 80% of the Infinity's.
Asked by: Speakerasm
The recommended enclosure for these is about 6 cubic feet sealed. They will work in a smaller volume that is heavily stuffed however. You can expect in room response into the mid-upper 30's.
Answered by: MattP
Date published: 2013-10-07

Retro fit ?

Will these "drop in" my Infinity Reference Three cabs ?
Asked by: Big Sticks
All the dimensions for this Goldwood woofer are listed on our website. Pull the original woofer from the enclosure and measure the cutout size. If it is ~7-1/4" (give or take a sixteenth or so) there should not be any modifications required for this to fit. New screw holes may be necessary.
Answered by: MattP
Date published: 2013-05-08

Will this woofer driver work in Bose 601 Series III ?

There is one review said he or she installed a pair of these woofers in his Bose speakers and they worked great. I wonder if they will work in my Bose 601 Series III speakers ?
Asked by: ecs64lurker
You would have to look at their level of experience. Woofers are designed to match certain boxes, have specific impedances and efficiences. Sometimes, a more efficient driver sounds louder and an untrained ear thinks it's better. Whenever changing one speaker in a pair - change both so that they sound alike - or have the "same voice". And do the math. If the impedance and efficiency are not the same as the driver they are replacing the crossover needs modified. Additionally - the driver needs to be a match for the same box size - ported or sealed. Oftentimes, it's best to have your old drivers reconed by the original manufacturer. This is a popular thing to do with classic old speakers like Advent, Dahlquist and Velodyne. I hope this gives you some food for thought. Do some homework and you will find it easier to live with your decision.
Answered by: MarkAJH
Date published: 2012-09-14

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