Threshold Model T2 Solid State Vintage Preamp w/Outboard Power Supply

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Fantastic preamp from Nelson Pass and a great match to our silver Threshold SA/3.9e Stasis amplifier listed here as of this writing.

I can't imagine a better preamp you could buy for this price today.

Comparable performance and design would likely set you back $10k.

Featuring balanced and single-ended inputs for most channels, plus a large and bright easy to read display.

Great cosmetics with very little signs of use.

Tested and working as it should.

The SkyFi Testing Process for Preamplifiers:

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. Special attention is paid to the power supply which is the most common source of failure for preamps. We then power up the unit and run a simple 1k sine wave while monitoring the low voltage output on an oscilloscope for signs of distortion or noise to get a baseline.

At this point we will lubricate and clean all switches and potentiometers (that are not sealed) with a high quality contact cleaner, and then re-test all functions for any signs of noise or scratching.

Final testing involves putting actual music through the preamplifier. We have learned over time that some issues are only noticeable to a trained ear while listening to a familiar source material. Our test bench has reference vintage KEF speakers that we are super familiar with which will quickly reveal any discrepancies. Some preamps will then move into the listening room where they will be tested with our in-house reference system.

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.