When you say you changed the pre do you mean the phonostage as well? If you changed phono stage it’s possible the previous one had a rumble filter and the new one doesn’t.
__________________
Tony
D'Agostino Momentum S250 MxV & HD pre; Linn Klimax Organik DSM, SonicTransporter, EtherRegen; Acoustic Signature Typhoon Neo, Koetsu RSP, Boulder 1108; Sf Il Cremonese; Shunyata Everest, Altaira, Sigma & Alpha v2
|