View Full Version : unpowered subwoofer
BobE
April 10th, 2006, 12:28 PM
I recently obtained an unpowered subwoofer. Does anyone know of an inexpensive receiver with a powered subwoofer connector? Thank you
Backlash
April 10th, 2006, 2:35 PM
You don't need one. You can use a receiver and take the LFE feed from your current receiver to feed the CD input on a two channel receiver, and connect to the sub via speaker wire. Set the volume on the 2ch while watching a movie or listening to some music, keeping the main receiver's volume constant.
After that, the sub output will vary along with the volume control of your main receiver. It's what I do for my bass shakers
BradJudy
April 10th, 2006, 7:12 PM
Typically, one would use something like a sub plate amp (http://www.partsexpress.com/pe/showdetl.cfm?&DID=7&Partnumber=300-792) or a bridgeable amp (http://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=302-600) to power the sub. There are a lot of options out there including pro-audio amps and fancy mono-block amps, but a regular subwoofer plate amp should do the trick just fine.
BobE
April 12th, 2006, 9:53 AM
Sorry for sounding ignorant, but I am electronically challenged. My home stereo receiver is at least 20 years old. It has no LFE feed. Isn't that basically the same as a subwoofer feed? My old user's manual says I could get a crossover network and separate power amplifier. Would you suggest this? If so, what type of crossover network and power amplifier would I need? Thanks again.
DavidD
April 12th, 2006, 11:18 AM
Sorry for sounding ignorant, but I am electronically challenged. My home stereo receiver is at least 20 years old. It has no LFE feed. Isn't that basically the same as a subwoofer feed? My old user's manual says I could get a crossover network and separate power amplifier. Would you suggest this? If so, what type of crossover network and power amplifier would I need? Thanks again.
I'm sure there are other sources as well, but Hsu has a relatively inexpensive crossover, if you want to buy a separate unit:
Hsu High Pass Filter (http://www.hsustore.com/high-pass.html)
You would still need an amplifier, of course. A plate amp is inexpensinve and would certainly work, but I don't know how conveninent it would be, since (I don't think) there is any sort of a case.
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