I am interested in upgrading an old Carver AV 405 5-channel amp. Rotel has a few models listed as Class D amplifiers (RMB-1076 for instance). The output jacks on this are labeled in 3 sets of 2. 2 as speakers A, 2 as speakersB, etc. I am a little conused. Would a Class D amplifier such as this serve well as a HT amp?