The 652 is a stereo vacuum tube preamplifier with mic/line-level inputs Using the GAIN control, the engineer can achieve 5 - 60 dB of gain from the uniquely-biased tube input stage, followed by a... View more

The Mass-DI features discrete JFET/BJT circuitry with a custom designed "mu-metal wrapped" Lundahl transformer, giving the source a natural sound with a fast transient response. Each unit is... View more