What is Audio Researches best preamp period

so what is the differ albert from ref 2 and mk1 or mk2 and what mk1 or mk2 did they change tubes,and are you saying if it is the model with russian tubes you cant tube roll,and how do you tell what model to get

Agree with R_f_Sayles. I owned the Calypso/Rhea combination before my current Supratek Grange. There is no ARC that can stand toe to toe with that Aesthetix combo and the Grange smokes anything ARC ever made.

please only give me ark responce,dont care if something else sounds better,,,i need ark info..thanks

Whatever you say boss. It's your coin.

Wc65mustang

have you auditoned all the preamps that ARC has made in its storied history?

I tend to dismiss sweeping generalizations.