How about a nice CD player? But seriously folks….I don’t know accustat, but an ARC pre amp sounds pretty nice. Did the OP just switching pre amps between the systems to see what changes?
Systems comparison
I have two systems
Both have acoustat trans nova 200 amp
both have dynavector Ruby low output mc cartridge
1st system has arc sp 6 preamp second system has acoustat tnp preamp
first system has thoren 165 turntable
2nd system has sme 3 arm
question is what are weak point(s) of each system
2nd question is if acoustat preamp is weak point what used arc preamp would you recommend?
also add any suggestions