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kinza
Senior Member
_ 		9. October 2004 @ 14:07 _ Link to this message    Send private message to this user   
I have a receiver that needs surround sound speakers with 8 ohm, but I only have two ss speakers with 4 ohm. The inputs on the receiver for the front speakers needs 4-8 ohms and I have 2 with 6 ohms. When I only hookup the front speakers it says overload on the receiver.
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The_OGS
Senior Member
_ 		10. October 2004 @ 10:08 _ Link to this message    Send private message to this user   
Front (main) channel speakers should have an 8 ohm rating.
4 ohms is really too low, and this low impedance will test the quality of your amp.
An amp must be specifically designed to deliver high current into a low impedance load, and remain stable.
This increases the cost of the amp.
Surround-sound amplifiers are traditionally even more wimpy. They prefer speakers with 16 ohm impedance!
You might be able to run 6 ohm front-channel speakers, using low volumes and low bass (no 'loudness') but it might trip-out if you turn it up.
4 ohm surround speakers are junk - they're just NFG.
They make poor speakers for use on any channel (but especially surround channel).
So try to keep at least 8 ohms on your main front channel - the higher the better, maybe 6 ohm could work, I dunno.
Surround sound speakers need to be higher-impedance than fronts, not lower; however they can be physically small as bass is not as important.
You could connect two pairs of 6 ohm speakers, in series, to your surround channel.
This will present a 12 ohm load to the little surround amplifier, and allow it to function :)
Regards
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