At Pass Labs we don’t change our products unless we feel that the changes are significant improvements over previous versions. Because of this we see typical product life spans of seven to eight years. We are constantly working on and listening to new things and increasing our knowledge of circuits and components on sound. Eventually we find some things worth putting into production because they are significant enough. That time has come with a new series of preamplifiers. New design uses double shielded low noise toroids in external supply connected via aviation grade circular connectors using silver on copper. The power supply is dual mono with two transformers with lower radiated and mechanical noise. The XP-22 has a new input circuit that is based on the XS pre it is lower in noise and distortion with greater drive capability. Noise is the most prominent part of THD+N at low levels. By lowering noise we get better resolution and dynamics. The secondary stage runs a higher bias output stage with auto bias and much lower output impedance. The XP-22 can drive long cable runs and low input impedance easily. The volume control is single stage instead of two stages and has more range it is quieter and more accurate as used in the XS and XP-30. The XP-22 measures spectacularly well but it really stands out sonically. The gain circuitry continues to use our favorite transistors from Toshiba but has a larger higher biased output stage similar to the XS preamplifier auto bias. This makes longer and multiple cable runs easier to drive and gives us the advantage of simplifying our single
ended output circuitry while increasing performance. Overall this makes for a quieter more neutral, musical and versatile control center for your system.

Specifications
- Overall Gain: 9.3dB Balanced
- Volume steps: 99
- Remote: Yes
- Inputs: 5
- Outputs: 2
- Frequency Response:  +/- 0.05 dB 10Hz to 20KHz
- Input Impedance: 22K Ohms
- Output Impedance: 25 Ohms RCA, 50 Ohms XLR
- CMRR: -60 dB, 1 kHz
- Cross-talk:  >100dB
- Signal to Noise Ratio:  < 0.001 @ 1V 1Khz
- Power Consumption:  40 watts
- Number of chassis:  2
- Dimensions, Each Chassis: 17”W x 12”D x 4”H
- Weight (LBS): 40
- Shipping Box Dim: 23 x 18 x 18
- Shipping Weight: (LBS) 50