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richatct 02-14-2020 12:14 PM

Watts spec per channel on HT receiver
 
Here is something I have always wondered about the RMS Watts spec of a home theater receiver.

Any time you view a spec (of any brand) of a multi channel receiver (let's say 7 channels), it is always written in this format:
"140 watts per channel into 8 ohms (20-20,000 Hz) at .08% THD, with 2 channels driven".

And I am like ok.... 90% of my use of the receiver are in watching movies or TV, which will typically be powering all 7 channels (not just two for stereo). But the spec talks about watts per channel with ONLY 2 channels driven.
So, does that mean I can get 140 watts X 7 channels?

Or if that spec is 140 x 2 = 280 watts, then in reality in using 7 channels at the same time I am actually getting: 280 watts / 7 channels = 40 watts for each of the 7 channels?


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