We proudly present Ianus QuintEssence - the third amplifier in the new Ianus Series

“The Ianus QuintEssence ,just like the rest of the Ianus Series amplifiers,  uses TriodeFet technology. In contrary to the bigger Geminae model, the QuintEssence like the smaller Essentia  use the TriodeFet active element in a very different topology, as this is a Single Stage -Single Ended design.


The Design Concept

The QuintEssence is not just a higher powered version of the Single Stage-Single ended amplifier concept , used in the Essentia (and Aperio integrated).

Instead, it is a (rev-)evolution of the TriodeFet technology , taking the performance of this unique active element to even higher level.

This new generation of the TriodeFet presents transfer curves with higher fidelity to the curves of the tube used to “copy” the transfer tube.In a way, it is more close to the ideal tube transfer curves than the previous gen of the TriodeFet.

Just like the Ianus Essentia ,the QuintEssence amplifier is not only Single Ended, it is also a Single Stage! Incredibly there is no driver stage and no input stage! This extremely simple topology we feel is a breakthrough in amplifier design, and is an elusive design goal for many, including our lab. It is only possible to execute now as we are finally able to use an active element that has the needed specifications for the purpose: Extremely high linearity, high voltage gain, high current gain and very high input impedance.

Variable gain input feature, using a very high quality Transformer Volume Control (TVC) system

System flexibility

Inputs include our proprietary AC link input, as well (as standard) a Transformer Volume Control (TVC) variable gain input, which is also found on the bigger brother, with 6 level selection. This allows the use of standard gain preamplifiers and high gain (Aries Cerat preamplifiers).

True balanced XLR inputs are also standard.


Triode or solid state?

The triode-like transfer curves of the next Generation TriodeFet used in the QuintEssence elevates the performance of the new  Ianus amplifier to surpass the the very best Single Ended tube amplifiers. The superb midrange , treble, accurate timbre and immersive soundstage that we expect from big bottle tube amplification are taken to another level..

As with all the  Ianus Series amplifiers,  it is also able to deliver more current than their tube counterparts, and are essentially maintenance free as the internal tubes used for curve creation are rated at 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 60W (8ohm) full class A.

The QuintEssence mirrors the strengths of a SOTA Single Ended tube amplifier, with superbly accurate timbre and a huge soundstage

Technical Specifications


Power Output (Class A operation):

65W @ 8ohm 100W @ 4ohm

Stable operation down to 1 ohm

Zero feedback design

Gain Stage:

Single Stage. Single Ended.


26db (26-22-18-14-10-6)db

(gain switch using TVC system)

Signal to Noise Ratio:

110db with reference 0db

Full power bandwidth:

5Hz - 60Khz

(upper range limited with oscillation prevention limiters)

Damping Factor:

User Switchable

Idle power consumption per channel:

140W depending on the bias setting


RCA X1, TVC X 1 , AC link X1, True Balanced XLR X 1


Maximum dimensions (excluding plinth):

520mm H x 400mm W x 310mm D

Weight unpacked:

95kg per monoblock