The original Quicksilver Full Function preamp has extremely low output impedance making it compatible with a wide range of amplifiers and cables. Look for the later version with 5AR4 rectifier and stay away from modified units. This preamp is over built by today's standards and has been replaced by a preamp listing for $4,000.
Conrad Johnson PV-10 and PV-11 preamps are too boring.
Conrad Johnson PV-10 and PV-11 preamps are too boring.