Receivers, Amps, and Processors
Using my Denon AVR X1200W
5.1 sounds perfect. Clear sound from center. Lots of '3D' sound from surrounds and front speakers,
The moment I re-assign amp from 'ZONE 2' to either 'front height' or any 'top' speaker, all other speakers start to sound dull and muffled.
Any idea what I (or the...