I use to own MC601 mono blocks and matching preamp C52 with klipsch speakers never ever sounds good or no synergy at all I sold them bought Parasound A21+ and P6 and here we go everything sounds right
my wife love the looks on Macintosh and she always giving me a compliments with Parasound she don’t care 🤷♀️
since then I own a lot of power amps JC1, JC5,SIMAUDIO MOON, CLASSE CA2300 Plinius 103 and more but anthem STR amp I use to own also sound dead code with my speakers
matching right amp to right speakers is super important