Pass Labs X1 Reference Preamplifier - SWEET!

"…it is not a stretch to assume that I believe the X1 to be near the top of the price/performance ratio. For the money, I do not think you can do better, especially if your preferences are transparency in the sense of wanting the preamp to get out of the way and let the other components do their job…Just give it a listen and you will be amazed at what you don't hear; you might end up owning one too!" 

– John Brazier, Positive Feedback Online

The X1 continues the Pass Labs "Supersymmetric" tradition of the X0.2 by creating a superlative preamplifier with minimal parts in the signal path. Like its more sonically sophisticated sibling the X0.2, the X1 will also transparently convert un-balanced to balanced signals, allowing either to be used simultaneously.

The X1 is comprised of two machined metal chassis. The X1 shares the same intuitive four-button remote control and front panel display as the X0.2 and the X2.5. 

The patent-pending volume control, designed by Wayne Colburn, defines a new state-of-the-art in concept and design. Essentially a fixed resistor attenuator under digital control, this feature allows for discrete and discriminating volume adjustments across a broad frequency spectrum.

In addition, the X1 offers variable gain settings to further allow the audiophile to best serve the needs of other system components. Gain settings, as well as all other functions, are easily and intuitively adjusted from the remote control handset, smartly displayed on the vacuum fluorescent display panel.

Specifications

• Gain: 4dB or 14dB


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


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


• Output Impedance: 360 Balanced, 150 Single-ended


• Input Impedance: 66K Balanced, 33K Single-ended


• Output noise floor: -125dBV ref to 10V output


• Dimensions: 2 @ 17"W x 3.5"H x 11.5"D


• Weight: 46lbs


• Serial Number: 12180


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  Retail: $6000