Pass Labs XP-20 Stereo Preamplifier



After having tested a Pass power amplifier and phono preamplifier, I could not wait to get my hands on a preamplifier, to complete the system analysis. The subject of this review is the venerable XP-20, which has been in the Pass inventory since 2009. It's a fully balanced design, with separate power supply chassis for low noise. The bench test results were quite surprising. Read on to see for yourselves.


  • Design: Fully Balanced Stereo Preamplifier
  • Maximum Voltage Output: 34 Volts into 100 kOhms
  • MFR: 2 Hz - 60 kHz, - 3 dB
  • Inputs: XLR and RCA
  • Outputs: XLR and RCA
  • Input Impedance: 96 kOhms XLR, 48 kOhms RCA
  • Output Impedance: 100 Ohms XLR, 50 Ohms RCA
  • Dimensions: 4" H x 17" W x 12" D (Each Chassis)
  • Weight: 40 Pounds (Both Chassis Together)
  • MSRP: $8,600 USA
  • Pass Labs