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Infinity FET Preamplifier

Stereo Pre Amplifier (1976)

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Infinity FET Preamplifier


The music-loving ex-aerospace scientists and engineers who founded Infinity Systems began working years ago toward an achievement comparable to the DSP Switching Amplifier we were developing. Our goal: the ultimate preamp.

At that time no FET preamps or other highly advanced preamps existed.

Now there are a few. The four or five best new preamplifiers represent great strides beyond any available before about 1974.

As we were determined it would be, the Infinity Preamplifier is the most accurate-sounding and the most musical of that group (As well as the easiest to operate).

And when the dynamic and tonal details of recorded music were at last revealed by this new Infinity advance, something else was revealed as well:

On existing recordings, the instruments were separated not only by the individuality of their timbres and overtones, and by stereo's left and right definition, but also by a lifelike re-creation of depth.

Until you have heard your components teamed with our FET Preamplifier, you haven't heard all the three-dimensional depth presence your speakers can convey.

To upgrade the sound of any high quality sound system, the world's finest preamp is the Infinity High-Resolution FET Preamplifier.


Frequency response: 20Hz to 100kHz

Total harmonic distortion: 0.05%

Signal to noise ratio: 70dB (MC), 82dB (MM), 90dB (line)

Output: 7V (Pre out Max)

Dimensions: 18.5 x 4.5 x 15 inches

Weight: 26lbs



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