• Excellent condition.
• Original user manual.
• Box and packing.
• Factory Remote Control.
• Fully tested and 100% as per factory.
• A super rare and stunning sounding X2.5 from Pass Labs.......
• Full Review Here : Pass Labs X2.5 Pre Amplifier

The X2.5 is an ultra high quality linestage audio preamplifier featuring remote control and internal power supply.

It combines a completely new circuit topology with traditional construction representing thirty five years of preamplifier design.

This preamplifier flows from a commitment to create the best sounding product: a simple circuit with the most natural sonic characteristics. Derived from US Patent # 5,376,899, the X2.5 integrates power MOSFET and JFET devices in a simple Class A topology in order to deliver the finest sound possible.

The Super-Symmetric gain circuitry is unique in providing superior flexibility and performance with both balanced and unbalanced inputs and outputs, converting one to the other as desired without extra circuitry and without performance degradation.

The X2.5 minimizes the number of components in the signal path, and yet retains exemplary objective performance specifications. It pushes the edge of the art in exploring how much subjective quality is obtainable with a new but very elementary gain stage.

The X2.5 employs a patented new type of volume control that offers significantly better performance than seen before in an electronic control. It provides over 60 dB of range, large voltage swing and very good measured performance.

The distortion and noise is at 1/10 and the dynamic range 100 times the previous state of the art in active attenuation. Most importantly it is subjectively outstanding; better than any potentiometer we have evaluated.

The fluorescent display is a very special device. Not only will you find its blue color highly attractive and readable, it is far more reliable than the usual LED or LCD display. Very few people are involved in the production of this product.

I supervise all phases of the construction, and I test each preamplifier myself. If you have questions, comments, or problems, please feel free to contact me directly. Thank you for purchasing this preamplifier. It is my sincere hope that you will enjoy its sound as much as I do.

Wayne Colburn - Pass Labs

Gain : 4dB or 14dB

Gain adjustment :  menu setting

Number of volume control steps : 32

Freq. Response :  -3dB @ 2Hz, -3dB @ 100kHz

Distortion @ 1KHz : <0.1% THD typ, 0.003% @ 2V

Output Voltage : 10v Balanced, 7v Single-ended

Output Impedance : 360 Balanced, 150 Single-ended

Input Impedance : 66K Balanced, 33K Singleended

Separate analogue channels : 4

Remote control : Yes

Input voltage before overload : Yes

CMRR : 10 volts

Output noise floor :  -55dB 20 - 20kHz

Crosstalk : -125dBV ref to 10V output

External amp turn on : Yes

Single-ended only inputs : Yes

Balanced / single ended inputs : 2/3

Mono operation setting : Yes

Unity gain setting : Yes

Power Supply : Internal

Power consumption : 25w

Number of chassis : 1 (isolated)

Dimensions : 17"W x 3.5"H x 11.5"D

Weight : 30lbs