Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded

Brand:| Model: GW-406D
These woofers provide added versatility over single voice coil woofers by allowing the use of both channels of a stereo amplifier to driver one speaker, and the ability to wire the voice coils in varying configurations.
Part # 
Weight: 3.2 lbs.  
Your Price
Buy 4-up$13.00
Part # 290-352
Qty:  EA
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Product Details

Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded

This woofer provides added versatility over single voice coil woofers by allowing the use of both channels of a stereo amplifier to driver one speaker, and the ability to wire the voice coils in varying configurations. They feature polymer laminated paper cones, treated foam surrounds, and vented pole pieces with back plates. This driver features a fully shielded motor. Note: All parameters are with voice coils connected in parallel.

Product Specifications
  • Nominal Diameter6-1/2"
  • Power Handling (RMS)60 Watts
  • Power Handling (max)90 Watts
  • Impedance8+8 ohms
  • Frequency Response59 to 6,000 Hz
  • Sensitivity91.3 dB 2.83V/1m
  • Voice Coil Diameter1"
  • Magnet Weight10 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)60.3 Hz
  • DC Resistance (Re)3.5 ohms
  • Voice Coil Inductance (Le)0.4 mH
  • Mechanical Q (Qms)4.13
  • Electromagnetic Q (Qes)0.75
  • Total Q (Qts)0.63
  • Compliance Equivalent Volume (Vas)0.47 ft.³
  • Mechanical Compliance of Suspension (Cms)0.51 mm/N
  • BL Product (BL)4.95 Tm
  • Diaphragm Mass Inc. Airload (Mms)13.7g
  • Maximum Linear Excursion (Xmax)2 mm
  • Surface Area of Cone (Sd)136.35 cm²
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialFoam
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter6.5"
  • Baffle Cutout Diameter5.625"
  • Depth3.3125"
  • # Mounting Holes4
Optimum Cabinet Size *
  • Sealed Volume0.52 ft.³
  • Sealed F368 Hz
  • Vented Volume1.14 ft.³
  • Vented F334 Hz
  • * Enclosure volume/F3s based on BassBox "optimum" calculations-
Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded
  • BrandGoldwood
  • ModelGW-406D
  • Part Number290-352
  • UPC643420100594
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (42 Reviews)
  • Weight3.2 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.

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Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded
Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded is rated 4.3571 out of 5 by 42.
Rated 5 out of 5 by from Another Firebird Monsoon ownerI think this works just fine as a replacement, depending on the source I keep the bass flat on the eq, or even turn it down a little. I have a tip for easy installation: instead of trying to drill new holes in the speaker or car, I used heavy duty cable ties to fasten them. Put some rubber or foam around the edge where the speaker makes contact so you don't get any vibration and to make a tight seal.
Date published: 2014-02-04
Rated 3 out of 5 by from Ooooppppss! Mis-read the specs!This little guy is a sub that is only rated to 59hz..? Sounds more like a great mid-bass driver. Using it in some custom furniture, it should do alright.
Date published: 2014-01-30
Rated 3 out of 5 by from Sounds More Like A Woofer than a SubwooferThe woofer or subwoofer has mediocre bass and I might as well buy something that offers better frequency response and can pump bass. I am going to try to experiment with it. I don't know if I need to replace the Pioneer antique CX-44 crossover with a real subwoofer crossover that really has some really deep bass and hope to shake the apartment. I have another speaker that needs upgrading as well, because it's a 6.5 inch stock subwoofer that measures 3 ohms than 4, 6 or 8 ohms. So I am going to upgrade both passive boxes with a subwoofer crossover and 4 ohm speakers. I would recommend this subwoofer for a starter subwoofer with a real good subwoofer crossover not a regular speaker crossover of which I have.
Date published: 2013-08-24
Rated 4 out of 5 by from Decent MONSOON sub replacement!Based on the review below I replaced the Monsoon (overrated by the way) sub speakers in my 2000 Trans Am. It took a little bit of work to mount them as the holes didn't exactly line up. The stock speaker is a 6 3/4 while this is a 6 1/2. Took an hour tops, including soldering time, drilling new holes and cranking some Iron Maiden! Not the best bass I've ever heard, but for $15 what more do you want? It's my wife's car and she's plenty happy now, happy wife, happy life!
Date published: 2014-01-06
Rated 5 out of 5 by from Good sub for the money. 1998 Pontiac Trans Am MonsoonI replaced the stock subwoofers in a Monsoon sound equipped 1998 Pontiac Trans-Am with these and am very satisfied. They sound great. bolt hole did not line up perfect, but close enough! Very easy install!
Date published: 2014-01-30
Rated 5 out of 5 by from Great little sub!I put this in my console of my Jeep and it does a wonderful job! I was amazed at the clarity and how well it handles!
Date published: 2012-08-29

Product Q&A

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who own this product or have experience with it.
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Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded

Q on Ohm/oice coils Goodwood vs Tang

I am replacing 2 6.5 inch speakers in an old dbx soundfield 3x2 lower end unit. Each of the current speakers is about 6.5 ohms and 8 when connected in. Do I need 8 ohm speakers or is there a way to wire these as 8 ohm speakers per channel. I already ordered- may need to hold till I hear. Vs tang 8 ohm units. Going to use this as a subwoofer lite with monitor audio column 270 speakers.
Asked by: hlstavn
From what you're describing, you would simply wire the voice coils on this speaker in series to achieve an 8 ohm load. If you look below, there is a customer review describing one experience with a DBX unit, using this speaker as a replacement.
Answered by: RussR
Date published: 2011-07-29

how would this best be used ?

i am thinking about getting one of these and i am wondering in witch way to use it. NUMBER 1. should i have it down-facing OR. NUMBER2. just have facing on a side of a box. i would like to know what is loudest. Thanks :)
Asked by: Techwizard
Loudest? If you want punchy rock like bass then aim them at you. If you want deep lower rap style bass them get the sound to bounce off of something like a wall or the corner of a room or... the floor.
Answered by: Casey Legg
Date published: 2013-11-04

Size of sealed enclosure

What would be the optimal sealed enclosure size for this driver?
Asked by: TenTwelve
.65 to .75 cuft
Answered by: digitalhaven 53
Date published: 2013-04-18

Isobarik loading

Could two of these be mounted in a sealed PVC pipe in a Isobarik loading. What would the length of a 7" pipe be. How do you think it would sound?
Asked by: El Becko
it would work but the results of more drive on the x max of the cones would not add much sound,, put your money on a subwoofer or a better amp to drive a single 6.5 in the proper chamber for best overall sound,, pvc is resonant... listen to the "blue man group" video and you will understand!
Answered by: digitalhaven 53
Date published: 2012-04-24

Ported enclosure sizing question

I am designing a stereo boombox and would like to include the option to run it as a 2.1 when I'm in the house. I would like both enclosures to be the same size for aesthetic purposes. That would mean the internal dimensions of the sub enclosure are: 16" x 7" x 5.5" yielding .356ft^3 volume. Some of that will be taken up by the plate amp, so let's assume the volume is around .325ft^3. I don't have the software or knowledge to calculate port dimensions, so I was wondering if someone could help me do that. It would be great if we could get the f3 in the low 30s but I understand that the task may be impossible given the price of this sub and my small enclosure. Thanks for the help. Hopefully I'll get a response and I can post this "2.1 boombox" to the techtalk forums.
Asked by: tycham85
That volume is quite a bit smaller than what is recommended so the tuning will have to be a bit higher. I would recommend a 1.5" diameter, 4" long port which will tune the enclosure to about 50 Hz. You could also leave it sealed and get a much smoother overall response.
Answered by: MattP
Date published: 2013-07-12


If I was going to use one of these with a pair of Tang Band W31723SAs in a portable boom-box type project, should I use a filter on each and what would a good sized ported enclosure be for this sub.
Asked by: jalng63
Filter: I refer you to a speaker cross-over chart [Google]. You will see the relationship between frequency & speaker impedance. Pick an inductor from the chart. Keep it simple; using cross-overs is considered "old school" anyway, so you dont really need caps too, just a coil for low-pass.Box size: figure at least 1 cu ft; whatever baffle-size accomodates the speaker set comfortably, then make the box 6-10" deep. Port for lower, powerful bass response. I use PVC tubing curt to length [11/2"dia x 4-5" long].
Answered by: Fanden
Date published: 2012-04-13

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