At 350 watts per channel class A/B, the X350.8 is the largest and most powerful stereo power amplifier of Pass Labs line-up. Because we care more about how holistic design affects the musical experience and relatively less about how parts affect specifications, you can expect superb and accurate representation of the recording performance and venue, as well as the distinctive layering of instruments captured faithfully.
Positive Feedback Writers Choice Awards – 2016
Positive Feedback
“This is a high-powered, audiophile amp that delivers the desired sound”
Everything Audio
“A superb example of the Pass Labs commitment to trickle down product development”
Positive Feedback
Positive Feedback Writers Choice Award
Positive Feedback
Class | AB |
Type | Stereo |
Gain (dB) | 26 |
Full Pwr @ 26 dB gain (V) | 2.65 |
Low Frequency Response | 1.5 Hz |
High Frequency Response | 100 KHz |
Power Output /ch (8 ohm) | 350 |
Input Impedance (SE & BAL Kohms) | 50/100 |
Damping Factor | 150 |
Power Consumption @ Idle (Watts) | 600 |
Unit Dimension (W x D x H)(In.) | 19 x 21.5 x 11 |
Unit Weight (LBS) | 127 |






Class | AB |
Type | Stereo |
Gain (dB) | 26 |
Full Pwr @ 26 dB gain (V) | 2.65 |
Low Frequency Response | 1.5 Hz |
High Frequency Response | 100 KHz |
Power Output /ch (8 ohm) | 350 |
Input Impedance (SE & BAL Kohms) | 50/100 |
Damping Factor | 150 |
Power Consumption @ Idle (Watts) | 600 |
Unit Dimension (W x D x H)(In.) | 19 x 21.5 x 11 |
Unit Weight (LBS) | 127 |
Positive Feedback Writers Choice Awards – 2016
Positive Feedback
“This is a high-powered, audiophile amp that delivers the desired sound”
Everything Audio
“A superb example of the Pass Labs commitment to trickle down product development”
Positive Feedback
Positive Feedback Writers Choice Award
Positive Feedback