An Athens start-up built around one engineer.

Ideon Audio makes digital audio equipment — D/A converters, streamers, USB re-clockers and isolators — and is based in Athens. It is young by the standards of this guide. In an interview published by the Polish magazine High Fidelity in December 2020, its co-founder George Ligerakis said: “We started the company early 2016.” Part-Time Audiophile also gave 2016 as the founding year in March 2024, and the earliest copies of the company’s website in the Internet Archive date from April 2016. The company itself says its first product, the Ayazi DAC, was introduced in “late 2015 / early 2016.”

Who founded it is described in two ways. High Fidelity called Ideon “an Athens based company founded by four friends”: the chief designer Vassilis Tounas, with Ligerakis as operational director, Greg Mitsacopoulos as marketing director and Angelos Gallis as sales director. The company’s own About page describes a founding team of “an inspired engineer,” “two top-level corporate executives” and “an IT company of security & home automation offerings.” Its current team page lists Ligerakis as CEO, Tounas as VP and chief designer, and Gallis as global expansion consultant.

Ligerakis told High Fidelity the motive was personal: he was “not so happy” with the price and performance of ultra-high-end DACs, so he partnered with Tounas to build one for himself, and the result was good enough, he said, “to start-up a Company for that.” That first product was the Ayazi DAC. According to the company, Tounas studied electronic engineering in Athens, designed MIDI peripherals for the Amiga computer and built his first DAC in 1990. Ligerakis also explained the name: it comes from the Ideon Andron, the cave on Psiloritis in Crete where, in Greek myth, Zeus was raised.

Re-clockers, then the Absolute.

Ideon’s early identity was built around cleaning up the USB signal before it reaches a converter. Its website in 2016 offered two products: the Ayazi DAC and the 3R USB Renaissance, a USB re-clocker. The company presented the Ayazi as an attempt to make high-end sound “affordable,” and it still describes its goal as making digital sound “accessible to all,” from entry-level to “extreme-performance” systems. In 2024 Part-Time Audiophile put the entry-level Ayazi MK2 at $4,000.

The top of the range is the Absolute series: the Absolute ε (Epsilon) DAC, the Absolute Stream music server and the Absolute Time clock and USB regenerator. In March 2024 Part-Time Audiophile’s Greg Weaver listed the Absolute Epsilon DAC at $47,000 and the Absolute Time at $9,900, and described CNC-milled cases in “anodized black, with silver as the other standard finish.” He reported that the DAC uses an ESS ES9038PRO chip run by Ideon’s own software, as High Fidelity’s Wojciech Pacuła had also reported in 2020. Between those poles sit the EOS DAC, streamer and clock, the IΩN DAC and preamplifier, the Alpha Wave LAN-to-USB optimiser and the ΣIGMA Wave USB isolator. In a review first published by fairaudio in January 2025 and syndicated by 6moons, Martin Mertens gave the last two at about €6,000 each and said his own EOS DAC cost just under €10,000.

In March 2026 the company announced a new flagship, the Axiom DAC, which it describes as a 32-channel “hybrid” converter in a fully differential parallel arrangement; it says the Axiom had its world premiere at Park Avenue Audio in New York in April 2026 and its public debut at AXPONA. Ideon also says Stereophile placed the EOS DAC and the Absolute Stream Meta Edition in Class A+ of its 2025 Recommended Components; we could not open Stereophile’s list to confirm it.

Europe’s boutique makers.

Europe has a layer of very small makers whose products are built in small numbers and sold at very high prices. Five of the seven brands in this round are Swiss; the other two are Greek.

The Swiss five are spread across the country. The Swiss commercial register, Zefix, lists Stenheim Suisse SA with its seat in Vétroz, in the canton of Valais; FM Acoustics Ltd in Egg, near Zurich; and Daniel Hertz SA, the company associated with the audio engineer Mark Levinson, in Milvignes, in the canton of Neuchâtel. Boenicke Audio is registered in Basel as a sole proprietorship, and its website is signed by Sven Boenicke.

Lumen White, a loudspeaker maker that dates its speakers to 1999, now gives a contact address in Lucerne; in 2017 its website named a London address for its group and Lucerne for research and development.

The two Greek makers are both in Attica. Ypsilon Electronics says it was formed in 1995 by two sound engineers and gives an address in Paiania, east of Athens; Ideon Audio, founded in 2016, gives an address in Nea Filadelfia.

What links them is scale and price rather than place. At the top of these ranges prices run high — Part-Time Audiophile listed Ideon’s Absolute ε DAC at $47,000 in 2024 — and some runs are tiny: Ideon says its 2026 Ayazi anniversary edition is limited to 20.

This guide sets out what can be checked about each brand — who founded it, who owns it, and what it says about where its products are made — and marks clearly what rests only on the company’s own word.

Designed in Athens; “made in EU.”

On where its products are made, Ideon is specific about design and less specific about manufacture. Its About page says all its products are “in-house, proprietary designs, built without use of off-the-shelf modules,” and Ligerakis told High Fidelity that the company uses no “third-party boards or white label technologies.” But the same page describes a “360 manufacturing concept” that includes the choice of “production partners,” with testing throughout production and devices “hand-assembled in their final stage.” High Fidelity’s 2020 specification box gave the origin simply as “MADE IN EU.” We found no independent account of where its boards or cases are made, so the fair summary is the company’s own: designed in-house in Greece, built with outside production partners, and hand-assembled at the final stage.

We found no report of Ideon being sold or taken over in the sources we checked. Its address has moved within the Athens area: High Fidelity gave Parren 6 in Neo Psychiko in 2020, and the company’s contact page now gives Nea Filadelfia, though its privacy policy still names Neo Psychiko. It sells through distributors — in October 2025 it named 2WA Group as its new US distributor, in a transition with its previous partner Audio Skies — and it has shown at Athens’s HXOS & EIKONA show since 2016 and at HIGH END in Vienna in 2026. In May 2026, marking ten years, it announced the Ayazi X Anniversary, limited, it says, to 20 units, one of them kept for its own collection.

For a design guide, Ideon Audio shows how a young digital specialist builds a name from a myth, an engineer’s track record and a ladder of products from entry level to flagship. Compare Ypsilon, the other Athens-area maker in this round, and Weiss, the Swiss digital specialist. For this guide we use anodized black, silver and an Aegean blue with a sans, an unofficial interpretation; no product or logo is reproduced.

Keep Ideon Audio’s identity on hand — save it to a board in the Made Good inspiration library.