What is of paramount importance is the proper "gain structure" between all the inter-connected components, the size of the room and its overloading characteristics and the type of music you play.
I use a Pass Labs XA30.8 with a dedicated Leben tube linestage with both fixed and variable gain ( I chose this amplifier amongst seven others, directly auditioned at home ). I must disclose ( without naming ) that two much more "powerful" amplifiers, cut out during these auditions. By the way, the XA30.8 was audibly\ sonically superior to the Pass Labs 30.5 amplifier in every applied parameter.
The XA30.8 never transitions into Class AB, even at peak levels of 107 dBs, C weighted, Fast, at 3 metres. Obviously, it is able to supply sufficient current to meet the CLX's impedance\ load requirements.
Cheers from Melbourne and be well.
PS: For all practical purposes, I am a new member! Kostas.