Two specialists and an amplifier.

Einstein Audio Components is based in Bochum, in the Ruhr. The company says its owner, Volker Bohlmeier, and the engineer Rolf Weiler met in Bochum in the late 1980s and began working together in 1988, the year it gives as its founding; its homepage reads “Handcrafted German Audio Excellence since 1988.” The brand has no Wikipedia article in German or English, so its early history rests largely on its own account and on the trade press.

Its first product was an amplifier called The Amp. The company dates it in two ways: its timeline says The Amp appeared in 1990 after three years of development, while other pages call it “the 1988 ‘The Amp’.” Independent reviews give 1990: SoundStage! wrote in October 2007 that the company “released its first product in 1990,” and 6moons said the same. A 2006 version of the company’s website, archived by the Wayback Machine, called The Amp a transistor amplifier, said more than 2,200 had been sold, and gave the firm’s name as “EINSTEIN Audio Elektronik.” 6moons reported, from what the company told it, that The Amp held Best Buy status in Japan for four consecutive years.

A belt-drive CD player followed, and then the valves for which the brand became known. The 2006 website said work on The Tube, a valve line-stage preamplifier, began in 1996 and that it was introduced in 1998; the current site dates it from its first review, by Roland Kraft in image hifi, in 1999. SoundStage! reviewed The Tube in April 2006, at a price of $13,850, made it a Reviewers’ Choice and called it “the alpha male of line-stage preamps.”

Valves, hybrids and “The”.

Every Einstein product is named with the definite article — The Amp, The Tube, The Final Cut, The Light in the Dark, The Turntable’s Choice, The Source — a naming habit as recognisable as any logo. The company’s timeline lists The Final Cut, valve monoblock power amplifiers, in 2002; The Absolute Tune, a hybrid integrated amplifier, in 2003; The Light in the Dark, a stereo power amplifier, and The Turntable’s Choice phono stage in 2005; and The Source CD player in 2007. Reviewing The Absolute Tune in October 2007, SoundStage! priced it at $10,300, noted its unusual layout, with the transformers at the front and the valves at the back, and described Einstein as “a small company, about a dozen employees,” distributed in the United States only since 2005.

Later products include The Silver Bullet, transformerless valve monoblocks, in 2012, and The Amp Ultimate of 2013, which the company describes as a hybrid integrated amplifier with a “Circlotron” output stage in which transistors replace the output valves of the Silver Bullet; the current MK108 version is rated at 108 watts into 8 ohms. The range has widened beyond amplifiers into turntables, tonearms, a phono cartridge developed with Ortofon, cables, a power strip and loudspeakers. In 2022 the company introduced its Monolith series, named, it says, after the monolith in Stanley Kubrick’s 2001: A Space Odyssey: The Megalith loudspeaker and The Aerolith, a turntable it describes as “levitating on air.”

Some products are made with partners, by the company’s own account. It says The Tonearm was developed with the late Katsuaki Ishiyama of IT Industries in Tokyo, whose work it links to the Fidelity Research tradition, and is built with “a company specializing in high-precision mechanics”; its team, it adds, is “supported by a network of suppliers and processors.” It calls its products “one hundred percent proprietary developments,” each “manufactured as a unique piece” in what it describes as its Bochum manufactory.

Design and documentation.

Germany’s high-end loudspeaker makers do not share a single school. Some build on horns, some rethink the driver itself, and some put the amplifiers inside the cabinet and let electronics correct for the box and the room. The seven brands in this guide cover all three approaches, and the electronics that drive them.

Avantgarde Acoustic, at Lautertal in the Odenwald hills of Hesse, builds its range around horn loudspeakers, according to its website. Manger took a different route: its company timeline says Josef W. Manger filed his first patent in 1968 for what became a bending-wave transducer, the Manger Schallwandler, and that small-series production began in Mellrichstadt, in northern Bavaria, in 1990.

Active designs are the third strand. Backes & Müller, in Saarbrücken, marks fifty years of active, sensor-controlled loudspeakers on its website. Kii Audio, registered in Bergisch Gladbach near Cologne and building its speakers at Hamminkeln, near Wesel, sells active speakers with what it calls cardioid technology, meant to cut reflections from the room. Lyravox, in Hamburg, gives each driver its own amplifier and uses a digital signal processor in place of a passive crossover.

The electronics makers have roots in the Ruhr. Einstein Audio Components is registered in Bochum, and Audionet’s legal notice gave a Bochum address in 2015 and a Berlin one by 2018, according to archived versions of its website; the brand now belongs to audionet GmbH, registered in Berlin.

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.

A brand older than its company.

The company behind the brand is EINSTEIN Audio Components GmbH, at Prinz-Regent-Straße 50–60 in Bochum, registered at the Bochum local court and represented by Volker Bohlmeier, according to its legal notice; the same address appears in SoundStage!’s reviews of 2006 and 2007 and on the archived 2006 website. Register extracts summarised by North Data show that the present GmbH was entered in the commercial register in March 2006, with Bohlmeier as managing director — so the limited company is younger than the brand it trades under. Its registered object covers trade in audio components under the Einstein brand and, unusually, trade in wine and packaged food. Annette Heiss, whom the website describes as a qualified interior designer responsible for the products’ appearance, and as Bohlmeier’s wife, held commercial power of attorney from 2013 and was appointed a managing director in March 2025, North Data shows. We found no outside owner in the sources we checked.

The company says its components are made by hand in Bochum and that their exterior designs have won “numerous design prizes,” which it does not list; we could not confirm them. The name is borrowed from the physicist — the company links it to his “simplicity and elegance” — which also makes the brand hard to find online among the many unrelated uses of the name.

For a design guide, Einstein shows how a naming system can carry a brand: “The” plus a noun, applied to everything from an amplifier to a power strip. Compare Octave, another German maker of valve amplifiers, and AVM. For this guide we use black, silver and a warm valve amber with a serif, an unofficial interpretation; no product or logo is reproduced.

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