XA25 Power Amplifier

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The XA25 measures superbly, but its subjective qualities are most special. In an industry where… More details

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The XA25 measures superbly, but its subjective qualities are most special. In an industry where products with great specs are frequently found to be dry and boring, this amplifier breathes life into the music.

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 they build amplifiers with excessive output stages, huge heat sinks and massive power supplies. Using the highest quality components in simple linear topologies, assembled and tested with great care in Auburn, California. They measure well and sound great. They are heavy, reliable and expensive.

The new XA25 offers this at slightly lower power, without frills, at a lower price. It embodies new components and innovative circuits coupled with the best elements of the previous generation.

Press and Reviews

Audio Beatnik Review
Audio Beatnik

by Jack Roberts
Nov 2017

Home Theater Review
Home Theater Review

by Terry London
Jan. 2018

Home Theater Review Best of 2018
Home Theater Review

Best of 2018 Award

As I listened to album after album, I could hear the textures, colors, tones, and harmonics of music in a way that was very moving. The system’s timbre realism with individual instruments and voices was as satisfying with the XA25 as it had been with any amp. All of this added up to enable my system to play music with a wonderful lifelike flow."
— Jack Roberts, The Audio Beatnik
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)