What is the better trade off - having a good stereo amp close to the pre/pro and having longer speaker cables (~20 ft) or putting monoblocks at the speakers and running long XLR cables (~20 ft) from the pre/pro??
The center and surrounds and rears will have to do with 12 AWG zip cord. The surrounds and rears will each need about 40 - 50 ft runs (conduit runs buried in the walls so I can change it later) and I won't spend more on cables than amps or speakers!
If the interconnects are shorter (1m) then does it make a difference between XLR or shielded RCA?