I ran across this post on audioasylum re: the value of using monoblocks vs. stereo amps:
1. Ability to physically locate amplifier close to speaker to minimize speaker lead length thereby reducing losses.
2. Less noise interaction between stereo channels yields quieter operation and lower noise floor. Stereo amplifiers utilize shared component and circuit design.
3. Vibrations of the amplifier stages themselves can interfere with other channels. Separating into monoblocks helps to eliminate this common noise source.
4. There is less crosstalk (leakage) and greater stereo separation which yields enhanced stereo and fidelity effect.
5. Monoblock isolated power supplies permit least possible electronic and mechanical interaction between channels and promotes maximum linearity and stability.
6. Seperate power supplies do not rob power from the other channel under heavy loads.
7. Greater heat dissipation of two independent chassis.
Any thoughts, additions or corrections to these?
I'm also interested in hearing comments from folks who have used monoblocks in their 2-channel systems. I realize it's low mid-fi, but I've used Outlaw monos but don't recall any particular differences. Just wondering if there are more distinct differences, in general, between using monoblocks or a stereo amp when moving up the quality chain.