USSPA Preamplifier



This is an Ultra Simple Symetrical Pre Amplifier. There are 2 versions:

  1. USSPA1: uses audio mosfet driver as output.
  2. USSPA2: uses audio Sanken bjt as output.

Gain can be set from 0 to about 15db.

Tonal balance, soundstage and dynamic are its characteristics.

PCB are available upon request. At this moment the pcb color is black.

Circuit for Download