FWIW I just recieved my cj met150 5 channel hybrid amp to drive my Dali mk1 800s,400s & 200.
It replaces a denon 5803 avr, and compliments a cj met1 pre.
I was worried that it would not be a huge improvement from the denon, after all the cj is 5x150 wt into 8ohm and the denon is 7x170 wt. Man was I in for a surprise!
The cj Met150 blows away the denon and completely changes my perception of the 800s vs the 400s. My Primaluna 8 cd player sounds much better also.
With the denon avr I liked the 400s and 200 center better than the 800s, mids were fuller, more pronounced, sub picked up bass. Seemed they were easier to drive, consequently sounded better with a lessor amp.
since adding the met150, all of 3 days, the 800s sound like a completely different speaker, much better than before, bass is suddenly there. Also find myself content with 2 channel. The experts here were spot on when suggesting that mc amp trumps Avr integrated, and 2c amp trumps mc amp.
My point is that the equipment driving the speakers needs to be up to the task for them to sound their best.