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Lehmannaudio – Fertigung

Development and manufacturing of high-end audio electronics – phono stages, headphone and amplifier technology, Made in Germany.

Lehmannaudio Logo

Lehmannaudio Vertriebs GmbH

Cologne (Waltherstraße 49–51)New on Amplifa

1988Founded as "Entec" in Cologne
HRB 70224, Cologne Local CourtCommercial register
100 % manufacturing in GermanyMade in Germany
2-year warrantyOn all products (after registration)
WorldwideDistribution via specialist retailers and distributors

About Lehmannaudio

Lehmannaudio Vertriebs GmbH was founded in 1988 as "Entec" in Cologne by sound engineering student Norbert Lehmann, and develops and manufactures high-end audio equipment for discerning music lovers and professional users. The product range includes phono preamplifiers (including Black Cube, Silver Cube, Decade), headphone amplifiers (including the Linear series, Drachenfels) as well as preamplifiers and power amplifiers, complemented by accessories such as equipment bases and headphone stands. All products are developed and manufactured exclusively in Germany; casings such as that of the Silver Cube are milled from solid aluminium blocks, and accessories are made from acrylic glass, CDF panels and cork. The company also offers service, repairs and upgrades (e.g. board updates) for delivered units. Distribution is via specialist retailers and distributors worldwide; customers include private users as well as professional studios such as the Dutch mastering studio "The Masters" and Sennheiser, which used the Linear amplifiers at IFA 2005. Since 2018 the company has been based again in Cologne on Waltherstraße.

Site
Cologne
Processes
Milling of casings from solid aluminium block (Silver Cube), Development and manufacturing of high-end audio electronics (phono stages,, Production of accessories from acrylic glass (Headphone Gallery), Service, repair and upgrades of audio equipment (board updates, component replacement), Manufacturing of 3S equipment bases (CDF panels, shielding film, fabric discs, cork), Service/repairs, Upgrades/retrofits (e.g. analogue board upgrades, RIAA updates), Product registration with extended warranty
Materials
Aluminium, Acrylic glass, CDF (dense wood fibreboard, MDF-like), Cork, CDF (dense wood fibreboard)
Certificates
2-year warranty on all products
Founded
1988
Industries
High-end audio (home hi-fi), Professional studio sector (mastering, recording)
  1. 01

    Development (Cologne)

  2. 02

    Milling of the aluminium casings

  3. 03

    Manufacturing and assembly of the electronics

  4. 04

    Production of accessories (acrylic glass, CDF, cork)

  5. 05

    Testing and final inspection

  6. 06

    Distribution via specialist retail/distributors

  7. 07

    Service and upgrades

Materials & Processes

AlMgSi

Aluminium

Casings, e.g. that of the Silver Cube, are milled from a solid aluminium block.

PMMA

Acrylic glass

Used for the Headphone Gallery accessory in a minimalist design.

CDF

CDF (dense wood fibreboard)

Core material of the 3S Equipment bases for mechanical decoupling.

Kork

Cork

Contact surface of the 3S equipment bases on the supporting surface.

Locations

Standort Cologne

Cologne

DE

Headquarters with development and manufacturing

Materials
Aluminium, acrylic glass, CDF, cork

Components & Products

Linear D headphone amplifier
Linear D headphone amplifierElectronics manufacturing · High-end audio
Headphone Gallery made of acrylic glass
Headphone Gallery made of acrylic glassPlastics processing · Accessories

Inside the production

30 years of Lehmannaudio
30 years of Lehmannaudio
The Analog Days 2026
The Analog Days 2026
Drachenfels – new generation of headphone amplifiers
Drachenfels – new generation of headphone amplifiers
Norbert Lehmann, Managing Director
Norbert Lehmann, Managing Director

Industries

High-end audio (home hi-fi)Professional studio sector (mastering, recording)

Processes & technical limits

ProcessesToleranceMax. partWeightLot sizeMaterials
Milling of casings from solid aluminium block (Silver Cube)Machining––––Aluminium
Development and manufacturing of high-end audio electronics (phono stages,Assembly–––––
Production of accessories from acrylic glass (Headphone Gallery)Plastics––––Acrylic glass (PMMA)
Service, repair and upgrades of audio equipment (board updates, component replacement)Assembly–––––
Manufacturing of 3S equipment bases (CDF panels, shielding film, fabric discs, cork)Assembly–480 mm × 380 mm––CDF (MDF-like, denser), Cork, Plastic film

Additional services

Service/repairsUpgrades/retrofits (e.g. analogue board upgrades, RIAA updates)Product registration with extended warranty2-year warranty on all productsDistribution via specialist retailers and distributors worldwideHeadphone Calculator (online tool)

Reference customers

Sennheiser (IFA 2005 presentation with Linear)The Masters, Netherlands (mastering studio)

Quality & Warranty

All products are developed and manufactured in Germany; all components are carefully selected and designed for longevity. After product registration, a 2-year warranty applies to all products.

EvidenceCologne
2-year warranty on all products

History

  1. 1988

    Founded as "Entec" by Norbert Lehmann in Cologne

  2. 1995

    First Black Cube prototype (phono preamplifier)

  3. 1997

    First review of the Black Cube in SoundStage Magazine; worldwide distribution offers

  4. 2002

    Market launch of the Silver Cube with a casing milled from solid aluminium

  5. 2004

    Market launch of the first headphone amplifier Linear; used in the mastering studio "The Masters" (Netherlands)

  6. 2005

    Market launch of the Decade; Sennheiser uses Linear at IFA 2005

  7. 2006

    Market launch of the Black Cube S

  8. 2018

    Move from Bergisch Gladbach (11 years) back to Cologne to Waltherstraße

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