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Your Perception About HiEnd is About to Change!

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The Essentia is second design coming out of our labs, representing the Ianus Series.

Essentia intro


We are very excited to work on this project, and is to be launched in Q4 2020.

Th Essentia amplifier uses the same TriodeFet technology, but has features that make it unique in the already innovative Ianus range.

In contrary to the bigger Geminae model,the Essentia is using the TriodeFet active element in a very different topology, as this is a Single Ended design

Concept of design:

This Essentia design, is not only Single Ended, but it is also a Single Stage ! There is no driver stage and no input stage!

This extremely simple topology is an elsusive 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. The Essentia, is, as its name suggests: Consisted of only one TriodeFet stage, fed directly, and used as a simple SE amplifier. Uses only the “Essense” of the Series technology.

The amplifier power delivery is 40W (8ohm).

Inputs will include our proprietary AC link input, as well (as an option) the Transformer Volume Control (TVC) variable gain input ,which is also found on the bigger brother. The triode-like transfer curves of the TriodeFet means that it sounds like a true SOTA SE tube amplifier, but is able to deliver more current, is maintenance free (the internal tubes used for curve creation are rated at 10,000 hours lifespan) and its unique single stage nature means that it is as sonically transparent as it can get.

Coming soon...



Proudly present,the first amplifier to launch our of the new Ianus Series is our flagship of the Series, the Geminae.

This is a Class A amplifier, using a floating circlotron using TriodeFet elements as output stage devices. Power delivery is 130W @8ohm 260W @4ohm while never leaving true Class A operation, even at very low loads.

In contrast to the majority of “Class A” amplifiers, (which are biased at 1-3A max) where they only deliver a fraction of their rated power in Class A mode, the Geminae is a true Class A design.The active elements never go into cutoff even at full power at 4ohms.

In order to be able to deliver all its power in Class A, it is heavily biased at 12 Amperes idle (idle current is user adjustable),and its OTL TriodeFet output stage is working as a floating circlotron. The topology belongs to the Circlotron-esque family, but vastly improved, in terms of distortion, output impedance and reliability.

We called this topology a Super-Symmetric Self-Balancing inductively driven Circlotron. Zero feedback loops are used, either local or global.The floating circlotron is self-centering/balancing and does not need any long term adjustment or DC servos to stabilize, constant bias adjustmnent or correcting mechanism to eliminate DC voltage offset at its outputs. The AC decoupling of the stage is accomplished using custom super-spec capacitors. These special capacitors have internal resistance (ESR) less than a piece of copper wire (less than 2mohm), and are designed to be able to surge to 30,000A max. They are the most transparent capacitors associated with current delivery.

The Geminae amplifier is a two stage design .The input stage is a transformer-coupled small SET amplifier based on the E280F supertube,loaded with a specially designed transformer,with geometrically and electrically balanced windings.It is powered by its separate tube rectified-double choke filtered PSUs and low noise negative bias system. The input stage drives the TriodeFet stage by floating secondaries of the coupling transformer, so the floating/self-balancing nature of the output stage is not affected

The amplifier is fully adjustable on-the-fly

The input and output stage are monitored with a bias monitor system for all parameters of the TriodeFet system and real time adjustments, while the input stage bias system can be monitored and adjusted as well in real time.

The Geminae comes with variable gain inputs, using very high quality Transformer Volume Contro (TVC) system, a sonically transparent solution only found in top shelf preamplifiers.

The topology does not need any servo correcting mechanisms, nor any feedback nests / loops or output monitor / relay protection system. The system is protected by real-time non-invasive protection circuits that will sense any overcurrent of the output stage and put the amplifier on stand-by. You cannot damage the amplifier even by shorting its outputs.

The output power supply is based on a pair of 800VA power transformers feeding a douple pi-filter power banks,using extremely large core choke inductors and high speed capacitors.

The Geminae harmonic distortion distribution profile is indistinguishable from that of a SOTA SET amplifier, though the level of distortions are much lower, and output impedance is 100 times lower than a typical SET amplifier, the distribution and profile of the harmonics is indistinguishable of that of a simple Single Ended design.

Power (Class A operation) : 130W @ 8ohm 260W @ 4ohm

Stable down to 1 ohm

Zero feedback design

Gain: 32db ( 28-24-20-16-12db gain switch using TVC system)

SNR: 100db ref 0db

Full power bandwidth: 10Hz-60Khz (upper range limited with oscillation prevention limiters)

DF: 200

Idle power consumption per channel: 380-600W depending on bias setting)

Max dimensions (excluding plinth) : 720mm H x 400mmW x 610mmD

Weight unpacked: 165kg ea

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