I'm researching preamp-amp matches and due to lack of information on the Internet am left with a question regarding output/input differences between balanced and unbalanced feeds. The contemplated ...

The pre-amp then feeds into one or more amplifiers (typically, a 5-channel amp designed for HT).<P>Obviously, lots of variations are possible!

However, when a home theater receiver's preamp outputs are used, the outputs disable the receiver's internal amplifiers for the corresponding built-in amplifier channels.