Two-channel, solid state microphone preamp with two front-panel D.I. Hi-Z input The 1970s was a time of great change in pro audio. The introduction of solid-state electronics led to an explosion in... View more

All-tube Direct Box with Level Control, Ground Lift, Inspired by the Ampeg B-15 The number of A-Designs REDDIs in use on stages and studios all over the world is nothing short of staggering. Quite... View more

Stereo tube microphone preamplifier and D.I. with all discrete circuitry, point-to-point wiring, as well as input and output transformers There aren't many preamps that engineers and producers feel... View more