Pass Labs

Pass Labs XS Mono Amplifiers

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These are Pass Laboratories ultimate expression of Power Amplifiers; the perfect blend of science and visceral emotion. 
If
 there’s a more emotionally satisfying amplifier anywhere, we’re not aware of it. The successor to Pass Labs already lavishly praised and well regarded Supersymmetry patent.
  • Xs 150
  • Xs 300  

 Every technical effort has been made to assure exceptional specifications, among these:

  • Separate chassis - for lower electromagnetic noise
  • Power Supplies - with the greatly enhanced storage capacitance
  • Banks of redundantly parallel high speed - and soft recovery rectifiers
  • Noise filters - with improved high frequency
  • Larger and quieter transformers
  • Improved passive decoupling
  • Lower power standby
  • Input impedance - of 200 k-ohm balanced with negligible capacitance

XS-150 Watt Dual Chassis Mono Amplifier

Like the Xs 300, this amplifier was developed through constant and thorough innovation. After years of SIT device experimentation, followed by deployment in Nelson's First Watt designs, circuit modification captured the unique tube-like sonic footprint of SITs from much higher-output MOSFET devices used in the Xs series. The result is unparalleled, fatigue-free listening enjoyment.

XS-300 Watt Dual Chassis Mono Amplifier

The Xs series monoblock power amplifiers represent the reference-quality, state-of-art amplifiers from Pass Laboratories. Through years of "spare no effort" endeavour, they represent the true pinnacle of music reproduction. The Xs 300 delivers 300 watts, employs separate power supply and amplifier chassis' for lower noise and utilizes higher-power constant-current source. Single-ended bias current not only lowers distortion, but facilitates better control of its harmonic structure, tweaked and optimized through endless listening tests for your musical pleasure.

 

XS-150 Mono Amplifier

Class:A
Type:Mono
Gain (dB):26
Inputs:XLR / RCA
No Output Devices (/ch):112
Power Consumption:700 W
Standby Power Consumption:<1 W
Power Output/ch (8ohm):150
Number of Chassis:2
Dimensions:49 x 56 x 28 cm - per Mono Amp (WxDxH)
Weight:104 Kg 

 

XS-300 Mono Amplifier

Class:A
Type:Mono
Gain (dB):26
Inputs:XLR / RCA
No Output Devices (/ch):112
Power Consumption:900 W
Standby Power Consumption:<1 W
Power Output/ch (8ohm):300
Number of Chassis:2
Dimensions:49 x 72 x 28 cm - per Mono Amp (WxDxH)
Weight:136 Kg

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