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Powering Cambridge 210w 8ohm Sub woofers



 
 
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Old July 25th 17, 07:33 AM posted to rec.audio.car
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Default Powering Cambridge 210w 8ohm Sub woofers

Hello People,

On this website you can see a picture of a three voice coil sub woofer:

http://www.ecoustics.com/electronics...io/646685.html

Also known as Cambridge 210w 8ohm Sub woofers (taken from creative gigaworks s750 7.1's).

Apperently this is a subwoofer which requires 3 amps of each 70 watts of power to bring this beast alive !

I have mine still stuck in my Gigaworks S750 enclousure. I am thinking/would like to bring it back alive and thus I would like to replace the very shady creative labs electronics with some kind of alternative.

Perhaps the best option is a "plate amp". Apperently this is some kind of plate with some amp electronics attached to it. This could then probably be used to seal the enclosure, it would need to happen to have the same dimensions.

For now this is an experiment mostly to see if it would work, if it is possible and what kind of sound it would give so I can compare it to my memory recollection.

A repairman claims that it is best for the sound quality to have the Gigaworks fulled repaired/restored, however I am not so sure of that claim and I highly doubt it because I cannot imagine how the electronics would improve the sound of other amps.

However there is some speak of "cross-over" frequencies, though this seems to be handled by software and can be set between 10 hz and 200 hz.

Furthermore the creative x-fi elite soundblaster has 3 outputs on the back which split into 9 outputs via special video cables which are used as audio cables, where one output probably has no signal.

So it seems these cables either duplicate the output signals or split them. I confident that there is a subwoofer signal on one of them, going into my receiver and I could probably connect any amp to the receiver, or perhaps even directly to one of these outputs.

My main issue is:

Will this idea work ? Also how to connect amplifiers to this subwoofer ? Is it as easy as simply plugging some cables into the amp and then connecting it to the 3+ and 3- ?

Also my other main question is:

Which equipment is suited for this ? My guess would be some kind of plate amp which can deliver 3x70 watts ? Does such an plate-amp exist ?

If it doesn't would I need to buy 3 amplifiers each of 70 watts ? Perhaps duplicate the subwoofer signal to all 3 with cables ? How would that work ?

An amplifier in a box could also be interesting to play with, but perhaps the amp plate might be a good solution for this gigaworks if it happens to have the same dimensions or otherwise maybe a little bit of extra wood work or so could enclose it ? Perhaps the heatsink of such an amp plate is also enough to cool it and the subwoofer itself doesn't need any cooling.

So please advise if you have any insight or experience into this matter because my experience with "amplifiers" is zero.

I do own a denon receiver 1909 which is used to power the 7 satelitte speakers and this works fabolously.

My main concern is also the safety of the electronics, I kinda don't trust the gigaworks electronics because of all this brown glue that might have damaged it and the designs looks kinda shady ! but perhaps I am a bit to untrusty of that also I like to give other electronics a try just to see what it's like.

So if you have any recommendations please share ! It will be very highly appreciated not just by me, but by many many many many owners of gigaworks s750 that have the exact same problem as me.

Bye,
Skybuck.
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