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Threshold Audio FET Nine

Stereo Pre Amplifier

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Threshold Audio FET Nine


The Threshold FET Nine preamplifier is the culmination of more than fifteen years experience In the design and manufacture of ultra-high performance audio e!electronics and is worthy of inclusion in the finest home music system.

The circuit designs embodied in the new Threshold preamplifier employ engineering concepts at the forefront of audio technology. They neither lose information or gain distortion and precisely maintain all elements of the most complex source material to achieve a spatially accurate soundstage of palpable ambience.

The topologies selected for inclusion in each particular Threshold preamplifier system component are the result of thorough technical analysis and extended listening using a variety of master and commercial music sources and reference equipment. Contributing virtually no sound of its own, the Threshold preamplifier component will accurately reproduce the exact character of its source component and program material.


Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.02%

Gain: 58.5dB (MC), 37.7dB (MM), 20.57dB (line)

Signal to noise ratio: 66dB (MC), 80dB (MM), 112dB (line)

Output: 20V (Pre out Max)

Dimensions: 19 x 9.6 x 1.75 inches



This website is not affiliated with or sponsored by Threshold Audio. To purchase FET Nine spares or accessories, please contact the company via their website or visit an authorised retailer.