0 to 500.000Hz (-3dB).
The legendary Audionet flatline, built into each and every machine.

Scientific magic.

Audionet. The reference reference.

Affinity to the Unobtainium.

Unlike almost any other company on this planet in pursuit of the perfect tone, ours is not run by engineers. Or marketing people. Or mutual funds. Audionet is the brain child of scientists.

Who first convened in a garage, of all places. Only it was the subterranean car park of famous German Bochum University. Where it was decided to attack all questions of high end musical reproduction at the deepest possible level. To see what cutting edge science could come up with in terms of audible wonder. These same scientists are still running the company, after 20 years. And since they’re scientists, they much prefer to leave the singing of praise to other professionals:

“It occurs to me the best narrative line to take in describing the sound of the Audionet components is to tell you what I wasn’t thinking about. Information retrieval, for one, was not on my mind. Tonal balance, frequency response, signal purity, noise level – all of these weren’t rumbling around inside my cranium.

That says a lot. It means that here was a pair of mid-level, relatively affordable, components able to scale up in these areas into the neighborhood of the Big Boys – to the highest level. I knew we were off to a merry start. As you’ll see, this will be the major theme of this review.

Now let’s talk about what I did take note of. Over the years, I’ve heard many audiophiles talk about the seeming impossibility of reproducing realistic transients. I have to agree. If you’ve ever been in close proximity to a live drum set, you’ll know what the issue is. The speed, the force, the aggression of a single cymbal strike is outrageous.

In this regard, Audionet is in a class by itself. From the very first note – you’re going to be caught off guard.

The transient hits hard, with blazing speed and a sharp edge. Audionet gear refuses to slow it down. Indeed, with one of the highest slew rates in the industry, the specs clearly reflect what I am hearing. Full orchestral blasts exert maximum pugilistic verve. Abetting the impact is a dark-hued tonal balance that doesn’t skimp on the lower frequencies and packs oodles of weight and heft.

Beyond the sheer power, there are two more things to note about that transient onslaught. First, the treble is not rolled off and is allowed to roam freely. Second, dynamic range is staggering: not only do big macros give no hint of compression, they travel to places previously unheard at Nack Labs. The Audionet thrust coefficient is something else!

Yet peak SPLs do not bite you. Nice! I don’t know how Audionet managed that. How do you pack power, speed and full treble extension without harming the sensitive cochlea of the listener? Certainly, I did not expect it at this price point.”

See? We couldn’t have said it better or more eloquently than Mr. Marshall Nack, and our heartfelt thanks for those wise words. Let us just quote our founder, Mr. Thomas Gessler, at this point: “There’s one thing above all. I want to hear the music breathe.”

We’re quite sure that is the exact reason why you’re here. You must have felt there’d be machines somewhere on this planet which can sound like these. Welcome home. We’ve been waiting for you.


MAX & PRE G2 review in The Absolute Sound

Audionet MAX & PRE G2 The Absolute Sound review 2018
Greg Weaver from The Absolute Sound wrote an incredibly insightful review of the Audionet Pre G2 linestage and MAX mono amps. Be sure to read this one!!!

Read the full report here…


STERN & HEISENBERG review the absolute sound

the absolute sound Test STERN HEISENBERG
“The Stern linestage and Heisenberg monoblocks push the bar to previously unattainable levels!” says THE ABSOLUTE SOUND.

Greg Weaver, Senior Writer, and one of the most respected voices in thge industry: “These devices represent a new benchmark. Wait until you get an earful. It is SO clearly apparent what a paradigm shift they deliver, that you will understand immediately…I’m a total Audionet convert!”

Read the full report here…



New review in hifiplus: “Hands down, the finest audio system I had ever heard.”

Read the review online…


STERN & Heisenberg review Positive Feedback

Positive Feedback Test STERN HEISENBERG
“The Heisenberg and Stern have a serious, we’re-not-playing-around, visual that will stop you in your tracks with their scale, cosmetics—and ambition! Both units are encased in nearly identical aluminum chassis of flawless German metalwork (by German design legend Hartmut Esslinger). The Stern has already been placed in the Smithsonian’s National Gallery of Art. The Stern has got to be one of the largest preamps on the planet. Why so much real estate? I was told the interior is chock-a-block with circuitry. It boasts some amazing specs. There’s more: more tone, more timbre and, most especially, triumphantly, the grandest dynamic peaks I’ve encountered in residential audio. I’m always fiddling with or critiquing tonal balance—it’s rare to find a system that leaves me with no complaint—but with this rig I didn’t want to change a thing. The tone was BIG, with 100% saturation, and striking in its uniformity from top to bottom. The treble was sweet and extended, but never harsh, and certainly not of a quality I associate with solid-state. The mids were clean; the bass full, round and tight. All of uncommon purity. Yay! The tone showed no compromise. The instruments on The Blues and the Abstract Truth grew from ff like you get with other über components, and then pushed beyond that to full fff, where no amp has gone before. Edge-of-the-art for what’s possible in audio reproduction.”

Read the review online…



New Reviews


i-fidelity Test STERN HEISENBERG

“With the Stern preamp and the Heisenberg mono blocks, Audionet chimes in a new chapter of amplifier building. In more than one respect this trio is blasting conventions; sound quality and price fall definitely within. The attractive … styling by Hartmut Esslinger and the extent of innovative hightech from Audionet’s R&D department form in this triumvirate a passionate symbiosis which brought me a true joy of heart. … the new references.”

Read the review online…
Download the review as PDF…

Stereo 01/2017

Stereo 1/2017 Test WATT PLANCK english

“In the listening room the Berliners showed no mercy to either the connected loud speakers or with the various competitors we ranged against them. […] The conclusion is simple: Audionet equipment has never looked better – nor sounded better!!”

Sound Quality: 100%!

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hifi&records Test STERN HEISENBERG

“Unheard-of-supremacy… A new leaf in the book of ampbuilding… Soundwise, musically and aesthetically the three towers are performing in a different league, a new class that needs no other superlative.”

Download the review as PDF…