The D20 Mono from Triton Audio is a microphone preamp suitable for a wide swath of instrument signals, from guitars, to vocals, to drum overheads. Its construction consists of a Lundahl 1571 transformer followed by two gain stages, the second of which is switchable between FET or Tube modes. A discrete low impedance FET buffer powers the output drive, while a low-ESR voltage regulator ensures the amplifier circuit operates without ancillary, unwanted noise.
This preamp also boasts an input-impedance selector that affects the overall sonic characteristics of the signal passing through. This parameter, in concert with the ability to switch between tube mode and FET mode, fosters creative options in sculpting colorful tones on the way in. Furthermore, this unit supports 48V phantom power, and includes a 24 VAC power supply.