Owned multiple Avalon speakers. Tried many amps. Boulder 1060 had good bass and macro-dynamics but lack micro dynamics and detail. Ayre MXR was pretty good depending on your taste. I find ayre mostly satisfying but transient attack was slightly hyped with forceful high frequencies. Pass XA60.5 good tonal match but not enough power. X350.5 was pretty good. Rowland 312 was awful, dry and limited tonal palette. MBL, Bryston, Classe (CT600) were not good tonal match.
You are better off with warmer sounding SS amp like luxman. Have not tried the Dartzeel with Avalon but I suspect it would work. Maybe modwright as well.
Had a BAT 51se. I would not say this is a rich sounding preamp except too fat in bass. BAT tube amp is good match.
Ultimately I prefer Avalons with tube amps.
You are better off with warmer sounding SS amp like luxman. Have not tried the Dartzeel with Avalon but I suspect it would work. Maybe modwright as well.
Had a BAT 51se. I would not say this is a rich sounding preamp except too fat in bass. BAT tube amp is good match.
Ultimately I prefer Avalons with tube amps.