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Goldwood GW-406D 6-1/2" Poly DVC Subwoofer Shielded
Does Parts Express sell an amp and low pass crossover that would work well for this? I made a portable radio, but it doesnt have as much bass as I want, so I want to make another portable box with this subwoofer in it.
http://www.parts-express.com/2x50w-tda7492-class-d-amplifier-board--320-301For example, would this amp work well? What crossover to use with it?
Date published: 2015-06-08
With a frequency response of 59 to 6,000 Hz, this "sub" would seem capable of handling the full 69 to 2,093 Hz range of a five-octave keyboard. Right? Or is there something I'm missing?
Yes you are right. This is called a subwoofer but it does have an extended response, so this will work fine for that application.
Date published: 2015-01-27
I just have a question on the specs I see on this page. Is the 91.3 db sensitivity listed for both voice coils driven in parallel representing a 4 ohm load to the amp or is it for each voice coil running at 8 ohms? Thanks.
All specs on this driver are derived with the coils wired in parallel.
Date published: 2015-01-20
i was wondering if anyone had experience using this speaker as a mid bass/ mid range? i understand this is a subwoofer but the specs say it will reach out to 7000 hz, if they had is the tonal balance good or does it sound harsh like a typical subwoofer
If you open the graph below, you can get a better idea of what this will to in the upper range. It is very flat to about 1,200 Hz but has breakup issues beyond that. This may work well as the woofer in a 3 way, although I would not recommend crossing it higher than about 1kHz.www.parts-express.com/pedocs/more-info/290-352-goldwood-gw-406d-more-info.pdf
Date published: 2014-02-25
Free Air Installation
Can this be used in a free Air installation?
Yes this will work well for a free air application.
Date published: 2013-10-21
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.
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.
Date published: 2013-07-12