I have a 5 channel amp in my home theater, but I am currently only using 3 of the 5 channels, will that adversely effect the long term performance of the amp?
I have had two five channel amps that I use for center and rears and they never revealed any issues. I agree with Elevick, the power supply runs cooler and should last longer.
You can switch the rears to the unused channels, it might assue even wear of four channels but the center will always wear more. Personally I would just hook it up and go.
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