Peter Noerbaek “The latest incarnation of the PBN Audio LXis line stage preamplifier. This is a circuit that has been massaged for 30 plus years. My mentor Erno Borbely is the original designer of this circuit, I and another student of Erno, Les Bordelon have taken it this far. Shunt Regulators for both rails feeding an all FET amplifier fully symmetrical.
It likely does not get any better. Happy listening everyone. For the ones in the know. K170/J74 input cascaded with K246/J103 second stage K170/J74 with ZVN/P2106 cascades – output K216/J79. Regulators are MPSA 06/56 shunts and outputs are MJE15034/35 drivers ZVN/P 2106 passives are RN60 et al. This one is going to the Ralston Listening room and library at the university of the south in Swanee TN next week.”