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In Reply to: AV Receivers - Question about power and crossovers posted by Uncle Pete on June 22, 2003 at 09:16:15:
(1) The HK will not "automatically" do what you say! You have to enter its setup: "Subwoofer-Yes", "Main speakers-Small". This choice will filter out the bass from the main speakers and direct them to the sub. Since your main speakers, not being required to produce the deep bass now, will have somewhat more power handling capacity. You may have to try the "Main speakers-Large" setting and see which way you like. In this case the main speakers will continue on producing the deep bass along with the sub. It really matters on your main speakers and your room acoustics. There is no one single setup formula.(2) If you do not connect one or more speakers, the burden on the power supply of the receiver will lighten. Less heat will be produced from the receiver. Power to the other speakers may slightly increase under some circumstances. The bad news is that the change will be so little that you probably won't notice any change.
Follow Ups:
Actually you will notice a big change, as I did, if you add a separate power for the front speakers, the power supply in receivers in not their strong point, so if you remove the load of the front speakers, you will get cleaner sound from the receiver, not to mention the improvement on the front speakers with a proper amplifier, and you can get an used stereo quite cheap...
Antonio Melo Ribeiro
HK AVR525 is rated for:
2*85W/8 Ohm/20-20kHz/%0.07 h.distortion. It's also rated for:
7*70W under same conditions.
With 5 channels less it gives 15W more, hardly audible.
The stuation may change for other receivers though...
Still is more 20%, and you donīt know how those specs are measured...Just borrow a stereo power and try for yourself, then lets us know what you find... ;)
Antonio Melo Ribeiro
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