The TriodeFet technology, in contrast to a SET amplifier design that is using big output tubes, is essentially maintenance free as the internal tubes used for curve creation are rated at more than 10,000 hours lifespan. Its unique single stage nature means that it is as sonically transparent as it can get. The amplifier power delivery is 20W (8ohm) full class A.

TriodeFet technology does not sound like hybrid, tube or solid state amplifier. It sounds how an ideal tube amplifier should sound..

The triode-like transfer curves of the TriodeFet means the Ianus Protos ,like the bigger brother Aperio and Essentia, sounds very much like the very best Single Ended tube amplifier. A superb midrange and treble, accurate timbre and the huge soundstage we expect from big bottle tube amplification.

Technology:

Single stage, Single Ended, TriodeFet technology

Gain stages:

Single stage amplifier, from input to output posts

Power output:

20W @8ohms

Tube compliment:

2 x 6j11p-e, compatible with: E280F / E282F / E810F / E180F, D3A

Volume control:

61 step Resistor ladder, relay switched volume control technology

Inputs:

Less than 0.1% THD at 20V rms

Inputs:

5 x RCA

Headphone output:

4-pin xlr output, directly driven by output stage.

Full power available for HP output / no Impedance matching required

Power bandwidth:

full power at 5Hz -3db

Maximum gain:

18db (tube dependent)

Noise floor:

-90db ref 1V RMS

Dimensions:

Main unit: 500mm W x 490mm D X 170mm H. 60kg
PSU(tranformer unit/soft start) unit: 190mm W x 310mm D x 70mm H. 5kg

Ianus Protos TriodeFet integrated amplifier