Originally Posted by Eric Tatara
How would say a good multichannel AVR compare with a 2-ch integrated in terms of power?
What kind of power? Test bench power or listening room power?
From what I've read recently on AVRs, they are usually rated around 100-150W distributed over all (7+ channels)
Incorrect. AVRs are rated at 100-150 wpc, with a pure steady sine wave, some just 2 channels, some all channels.
whereas my integrated is 150W into 2 channels.
That's a pretty good representation of what to expect from the lightest weight AVR - 100-150 wpc 2 channels driven, resistive load, test signal = pure steady sine wave.
The heavier and more expensive AVRs can perform that well with more channels driven. Some do well with all channels driven.
Do AVRs have discrete amplifiers for each channel
Yes there is a dedicated channel circuit that resembles what you find in separate power amps and stereo integrated amplifiers, for every powered output channel, without exception.
or is there some kind of load sharing?
Like most 2-channel amplifiers (and as is optimal) the internal DC power supply is shared among all of the channels.
In terms of 2-ch music, would a multichannel AVR have all power available to the two main channels for music listening?
Yes, without exception.
I've been thinking about eventually replacing my integrated and external DAC with an AVR, but I have suspicions (probably unfounded) that an AVR won't hold up in terms of sound quality.
That's a suspicion that is pushed down the throat of naive audiophiles for fun and profit.