B&K amps seemed dark to me, you're coming from listening to adcom power as I did years ago you will likely find the same thing and be disappointed like I was. Look at ATI or other newer amps from them like Outlaw or Monoprice, or amps like Anthem and Bryston. Of course you can spend more but it comes down to personal taste. Parasound is a good middle ground in sound between your Adcoms and the B&K you're looking at. Maybe 1 Anthem for one room and 1 Parasound for the other?