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Pass Labs XA25 Amplifier
Pass Labs XA25 Amplifier
Pass Labs XA25 Amplifier

Pass Labs XA25 Amplifier


Entering their 22nd year of production, the X and XA power amplifiers have remained at the cutting edge of audio through continuous innovation and refinement. At Pass we build amplifiers with excessive output stages, huge heat sinks and massive power supplies. We use the highest quality components in simple linear topologies, assembled and tested with great care in Auburn, California. The measure well and sound great. They are heavy, reliable and expensive.


Gain  20 dB gain
Output Power  25 Watts rms @ 8 ohms 50 Watts rms @ 4 ohms
Distortion  0.1% @ 25 Watts, 8 ohms, 1 KHz
Class A envelope  50 Watt peak for 2, 4 or 8 ohm load
Bandwidth  DC to -2 dB @ 100 KHz
Noise  Less than 50 uV output, unweighted 20 to 20 KHz
Damping Factor  500
Slew rate  100 V/uS
Input Impedance  47 Kohm
Peak Current  10 Amp output (200 Watt peak into 2 ohms)
Protection  Shutdown at 10 amps output
Idle Power draw  2.0 Amps @ 120 VAC (240 Watts)