GTT Perspective · Audionet
The statement the system is built around.
Stern and Heisenberg are Audionet's statement Scientist Series linestage and monoblock amplifiers — engineered with Hartmut Esslinger to disappear into the music.
Why we distribute Audionet
Audionet builds electronics the way we believe they should be built: nothing in the signal path that does not need to be there, and an obsession with the things that quietly govern performance — resonance, magnetic behavior, isolation, and linearity.
Stern and Heisenberg sit at the top of that thinking. They are the pair we reach for when a system has to resolve without effort and drive without strain, and they have become a reference in our Private Listening Room.
We distribute Audionet in North America because this is engineering we can stand behind and demonstrate. These are not components that ask for attention. They ask for a serious system and a quiet room, and then they tell the truth.
What the engineering actually does
Power as foundation
Stern runs four encapsulated, mechanically decoupled toroidal transformers and 176,000 µF of silk-dielectric capacitance; Heisenberg divides four supplies between its stages with two 1,200 VA transformers and 200,000 µF. Power is treated as the foundation, not an afterthought.
Isolated, dual-mono, DC-coupled
Both are dual-mono and DC-coupled with the shortest signal paths; Heisenberg's analog circuits are galvanically isolated by optocouplers for absolute channel separation.
Linearity in real time
Heisenberg uses Audionet's ULA (Ultra Linear Amplifier) real-time distortion linearization, with gold-plated copper rails to the speaker terminals and no speaker relays.
In our Private Listening Room
From the independent record
- Review“The Audionet references were absolutely superb. In fact, from beginning to end over about four months their performance was flawless.” — David W. Robinson, Positive FeedbackIndependent long-term review.
- Review“a degree of resolution and subsequent transparency I've yet to hear” — Greg Weaver, The Absolute SoundIndependent review of the statement pair.
Questions we hear in the listening room
Do Stern and Heisenberg have to be used together?
They were designed as a reference system, but each can be evaluated separately — Stern as a linestage, the Heisenbergs as monoblocks. Together the pair establishes Audionet's intended reference context.
What do they demand from the rest of the system?
Resolution. A source, loudspeakers, and cables that are already telling the truth — this is not electronics that flatter a weak link. The loudspeakers should be chosen to make use of the Heisenbergs' current capability; they double their output as impedance halves.
How do they differ from the Mach and Schrödinger pair?
Same Scientist Series architecture and Esslinger design language, scaled up: more current, more isolation, more headroom. The honest way to choose is to hear them in the same room, in our Private Listening Room.
Further reading
Private Audition
Hear the statement for yourself
GTT is the North American distributor for Audionet. Stern and Heisenberg are auditioned in a complete reference system, by confirmed appointment, in our Private Listening Room in Long Valley, New Jersey.