Vacuum tube preamp/headphone amp with 4 inputs and outboard power supply.
Meier Audio Concerto
Take the design of the SYMPHONY, remove the DAC section, add a few small improvements to the...
Single Ended Triode Class A1 operation headphone amp with a tube rectified high current power...
Meier Audio Stepdance
Portable Headphone Amplifier based on Meier Audio's Balanced Ground topology.
Balanced Headphone Amplifier 2 x single ended normal headphone outputs) Cross Feedback Balanced...
Red Wine Audio Isabella Preamp / Headphone Amp
Battery powered vacuum tube line-stage preamplifier with optional DAC and headphone amp