Sennheiser

Corporate brand

German audio technology brand known for professional microphones, headphones, wireless systems, and spatial-audio solutions.

Last updated November 4, 2026

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Overview

Sennheiser is a German audio technology company headquartered in Wedemark, near Hanover. Founded in 1945 by Fritz Sennheiser and seven fellow University of Hannover engineers, the business began as Laboratorium Wennebostel, or Labor W, and initially produced scientific instruments. It soon moved into microphones and professional sound equipment, establishing a long-term identity around engineering-led audio products for broadcasters, musicians, studios, filmmakers, businesses, and consumers. The company’s early development was closely tied to broadcast audio. In 1946 it began making microphones for reporting, and its MD 21 dynamic microphone, introduced in 1953, became widely associated with radio and television work. The MD 82 shotgun microphone followed in 1956, while the Microport wireless microphone system helped bring wireless production audio to television. The business adopted the Sennheiser electronic name in 1958. Its MD 421, launched in 1960, became a durable standard in broadcasting, recording studios, and live sound. The company also expanded internationally, with products reaching the United States in 1963 and a dedicated American distribution company established the same year. Sennheiser became particularly influential in headphones. The HD 414, introduced in 1968, is widely described as the first commercially successful open-back headphone and helped define a lighter, more spacious listening format. Later products, including the HD 800 S and the Orpheus high-end headphone systems, reinforced the brand’s audiophile reputation. Alongside headphones, Sennheiser developed microphones, loudspeakers, amplifiers, aviation headsets, conferencing products, presentation systems, wireless monitoring systems, and solutions for broadcast, film, education, visitor guidance, and hearing support. The company has also built a portfolio through acquisitions and partnerships. It acquired studio microphone specialist Georg Neumann GmbH in 1991 and loudspeaker maker Klein + Hummel in 2005. A 2003 joint venture with William Demant created Sennheiser Communications; that venture ended in 2020, with the gaming-headset and enterprise activities becoming EPOS under Demant. Sennheiser established Sennheiser Streaming Technology in 2014, took a majority stake in spatial-audio software company Dear Reality in 2019, and acquired Merging Technologies in 2022. Sennheiser remains family-controlled in its professional activities, with third-generation family members Daniel Sennheiser and Andreas Sennheiser leading the company from 2013. Its professional audio division serves live music, studio, broadcast, video, film, business communication, and immersive-media markets. The consumer audio division, covering headphones and home-entertainment speakers, was sold to Swiss hearing-care company Sonova in 2021 for a reported €241 million. The Sennheiser name continues to be used for consumer products under that ownership arrangement, while the professional business remains associated with the Sennheiser family and group. The brand’s current technological emphasis includes wireless audio, high-end headphones, digital microphone systems, spatial audio, and AMBEO immersive sound. It has worked on multichannel and three-dimensional audio for music, film, virtual reality, augmented reality, and streaming. Sennheiser’s manufacturing and development network includes Germany, Ireland, the United States, Romania, Switzerland, Denmark, and Singapore. Its reputation rests on technical durability, broadcast and studio credibility, premium sound reproduction, and a broad ability to serve both specialist professional users and demanding consumers.

History

Sennheiser was established in 1945 shortly after the end of the Second World War by Fritz Sennheiser and seven engineers from the University of Hannover. The original company, Laboratorium Wennebostel, was named after the village where the operation had been relocated during wartime. Its first product was a voltmeter, but the company soon concentrated on audio technology. In 1946 it began producing microphones for broadcast reporting, including the DM series. The MD 21, introduced in 1953, became an important early success and was adopted for radio and television reporting. Sennheiser broadened its product range during the 1950s with microphone transformers, mixers, geophysical equipment, miniature headphones, and noise-compensated microphones. The MD 82, introduced in 1956, was among the early commercially produced shotgun microphones. In 1957, the company introduced Microport, a wireless microphone system intended for television production. Labor W changed its name to Sennheiser electronic in 1958. In 1960, Sennheiser introduced the MD 421 cardioid microphone. It became widely used in broadcast, recording, and live performance and remained in production for decades. The company entered the United States market in 1963 through an independent Manhattan distributor and established Sennheiser Electronics Corporation that year. Its headphone business reached a landmark in 1968 with the HD 414, an open-back model that became one of the most recognizable headphones of its era. The MD 441 followed in 1971, and the company reorganized as a limited partnership in 1973. Sennheiser entered aviation audio in 1980 by supplying headsets to Lufthansa. In 1982, Fritz Sennheiser transferred management of the company to his son Jörg, while the company continued developing wireless microphone technology. The MKH 816 shotgun microphone received a Scientific and Engineering Award from the Academy of Motion Picture Arts and Sciences in 1987. The company acquired Georg Neumann GmbH, a respected studio-microphone manufacturer, in 1991. Neumann retained its Berlin identity while production was moved to a new cleanroom facility in Wedemark. Sennheiser also established its formal United States headquarters in Old Lyme, Connecticut, during the same year. Manufacturing expanded internationally, including a Tullamore, Ireland facility established in 1990 and an Albuquerque, New Mexico operation established in 2000. In 2003, Sennheiser formed Sennheiser Communications A/S with Danish hearing and communications company William Demant. The venture developed communications and gaming headsets, but it was dissolved in 2020, after which the relevant activities became EPOS under Demant ownership. Sennheiser acquired loudspeaker manufacturer Klein + Hummel in 2005. Fritz Sennheiser’s grandchildren Daniel and Andreas joined the company in 2008 and 2010 respectively, and became co-CEOs in 2013. Sennheiser expanded beyond conventional hardware during the 2010s. It founded Sennheiser Streaming Technology in 2014 to develop streaming hardware and software, sponsored Shanghai Concert Hall between 2014 and 2017, and launched the Sennheiser Media label during that period. The company opened an Innovation Campus in Wennebostel in 2015. Its AMBEO initiative developed immersive and three-dimensional audio products, beginning with the AMBEO VR Microphone in 2016. Sennheiser also developed spatial-audio tools for augmented, virtual, and extended-reality applications. In 2019, Sennheiser acquired a majority interest in Dear Reality, a developer of spatial-audio algorithms and software for immersive media. In 2021, Sonova acquired the consumer audio division for €241 million. The transaction separated consumer headphones and home-entertainment speakers from the family-led professional audio business. In 2022, Sennheiser acquired Merging Technologies, strengthening its position in professional digital audio and production workflows. Sennheiser has collaborated with Netflix on spatial-audio production and has continued developing microphones, wireless systems, immersive-audio tools, conferencing equipment, and high-fidelity headphones. Its production network includes facilities in Germany, Ireland, the United States, and Romania, while research and development activities extend across Germany, Denmark, Switzerland, Singapore, and the United States. The company’s enduring identity is based on professional audio credibility, durable microphone and headphone designs, and premium technical performance.

2022
Merging Technologies acquired
[1]Sennheiseren.wikipedia.org
The acquisition broadened Sennheiser’s professional production-audio and digital-workflow capabilities.
2021
Consumer audio division sold to Sonova
[1]Sennheiseren.wikipedia.org
Sonova acquired Sennheiser’s consumer headphones and home-entertainment audio business for €241 million.
2020
Sennheiser Communications venture ends
[1]Sennheiseren.wikipedia.org
The communications joint venture with Demant ended and its activities transitioned into EPOS.
2019
Majority stake in Dear Reality acquired
[1]Sennheiseren.wikipedia.org
Sennheiser invested in Dear Reality, a developer of spatial-audio algorithms and software for immersive media.
2016
AMBEO VR Microphone introduced
[1]Sennheiseren.wikipedia.org
The AMBEO VR Microphone marked a major commercial step into immersive and three-dimensional audio capture.
2015
Innovation Campus opens
[1]Sennheiseren.wikipedia.org
Sennheiser opened a dedicated innovation and research facility in Wennebostel.
2013
Daniel and Andreas Sennheiser become co-CEOs
[1]Sennheiseren.wikipedia.org
Third-generation family members Daniel and Andreas Sennheiser assumed joint chief executive responsibility.
2003
Sennheiser Communications joint venture formed
[1]Sennheiseren.wikipedia.org
A joint venture with William Demant created a business focused on communications and gaming headsets.
1991
Georg Neumann acquired
[1]Sennheiseren.wikipedia.org
Sennheiser acquired studio-microphone specialist Georg Neumann GmbH and expanded its professional recording portfolio.
1968
HD 414 open-back headphones introduced
[1]Sennheiseren.wikipedia.org
Sennheiser introduced the HD 414, widely regarded as the first commercially successful open-back headphone design.
1960
MD 421 launched
[1]Sennheiseren.wikipedia.org
The cardioid MD 421 microphone entered professional broadcasting, studio, and live-sound markets and became a long-running industry standard.
1958
Company renamed Sennheiser electronic
[1]Sennheiseren.wikipedia.org
Labor W adopted the Sennheiser electronic name.
1953
MD 21 microphone introduced
[1]Sennheiseren.wikipedia.org
The MD 21 became a widely used dynamic microphone for radio and television reporting.
1946
First original microphones developed
[1]Sennheiseren.wikipedia.org
The company began manufacturing microphones for broadcast reporting and introduced the DM series.
1945
Company founded as Laboratorium Wennebostel
[1]Sennheiseren.wikipedia.org
Fritz Sennheiser and seven University of Hannover engineers established the business near Wedemark, initially under the name Laboratorium Wennebostel, commonly shortened to Labor W.

Products and positioning

Premium engineering-led audio brand spanning professional sound production, business communication, immersive audio, and high-fidelity consumer listening.

Headphones · 1968
HD headphone series
Sennheiser’s HD family covers consumer, studio, and audiophile headphones. The range includes open-back and closed-back designs, with models positioned from everyday listening through high-resolution home listening and professional monitoring. The HD 414 helped establish the brand’s headphone identity, while later products such as the HD 800 S became associated with premium audiophile reproduction.
Professional microphones · 1953
MD microphone series
The MD family includes dynamic microphones developed for broadcast, studio, live performance, and instrument recording. The MD 21 became a broadcast reporting standard, while the MD 421 and MD 441 extended the range into studio and stage applications. These products are central to Sennheiser’s long-standing professional-audio reputation.
Broadcast and film microphones
MKH microphone series
The MKH family consists primarily of high-performance condenser and shotgun microphones for film production, broadcasting, location recording, and studio work. The MKH 816 received an Academy Scientific and Engineering Award and helped establish Sennheiser as a major supplier to professional film and television production.
Wireless audio systems
Digital 6000 and Digital 9000
Sennheiser’s digital wireless systems are designed for demanding live sound, broadcast, touring, and event applications. They provide wireless microphone and transmission infrastructure for performers, presenters, production teams, and venues. The Digital 9000 system has been used in major televised and live musical performances.
Spatial audio · 2016
AMBEO
AMBEO is Sennheiser’s family of immersive-audio technologies and products. It includes microphones, soundbars, software, and production tools for capturing, processing, and reproducing three-dimensional sound. The platform supports music, film, virtual reality, augmented reality, extended reality, and home entertainment.
Conferencing and enterprise audio
Business communication systems
Sennheiser develops microphones, headsets, conferencing systems, presentation products, and visitor-guidance solutions for offices, education, meetings, and professional communication. These products are designed to improve speech intelligibility and manage audio in shared or networked environments.
High-end headphones
Orpheus
Orpheus is Sennheiser’s ultra-premium headphone system line. It represents the company’s pursuit of reference-level personal audio through specialized transducers, dedicated amplification, and highly selective materials and construction. The line serves as a technology and prestige showcase rather than a mass-market product family.

Controversies

2025
Consumer-audio price-fixing fine
The German Federal Cartel Office fined Sennheiser and Sonova €6 million over illegal coordination of consumer-audio prices, particularly for headphones. The case followed a raid conducted in September 2022.
Source

2022Netflix spatial-audio collaboration
Global
Sennheiser collaborated with Netflix on spatial-audio tracks for original productions, using multichannel production masters that were rendered for compatible stereo playback systems.
Outcome. Netflix expanded the availability of the spatial-audio format to more than 700 films and television series in 2023.
Source
2014Shanghai Concert Hall sponsorship
China
Sennheiser sponsored Shanghai Concert Hall, which temporarily carried the Sennheiser Shanghai Concert Hall name. The arrangement also coincided with the launch of Sennheiser Media and continued until August 2017.
Outcome. The sponsorship ended in 2017.
Source

Brand decisions

2022
Acquire Merging TechnologiesM&A
Background
Sennheiser aimed to expand its professional audio-production and digital workflow capabilities.
Action taken
The company acquired Merging Technologies.
Aftermath
The transaction strengthened Sennheiser’s professional production technology portfolio.
Source
2021
Sell consumer audio division to SonovaM&A
Background
Sennheiser decided to separate its consumer audio activities from its professional audio business.
Action taken
Sonova acquired the consumer headphones and home-entertainment speaker division for €241 million.
Aftermath
Sennheiser continued as a family-associated professional audio company, while Sonova operated the consumer audio business using the Sennheiser brand.
Transaction value. €241 million (2021)
Source
2019
Take majority stake in Dear RealityM&A
Background
Immersive media and spatial audio were becoming important in virtual, augmented, and extended reality.
Action taken
Sennheiser acquired a majority stake in Dear Reality, which develops spatial-audio algorithms and software.
Aftermath
The investment supported Sennheiser’s AMBEO and immersive-production strategy.
Source
2014
Create Sennheiser Streaming TechnologyStrategy
Background
Audio consumption and distribution were increasingly shifting toward software, streaming, and networked devices.
Action taken
Sennheiser established a subsidiary focused on streaming hardware and software solutions.
Aftermath
The move broadened the company’s activities beyond conventional audio hardware.
Source
2003
Form Sennheiser Communications joint ventureM&A
Background
The company expanded from production audio into business communications and gaming headsets.
Action taken
Sennheiser entered a joint venture with William Demant, a Danish hearing and communications specialist.
Aftermath
The venture ended in 2020, with its gaming and enterprise activities becoming EPOS under Demant.
Source
1991
Acquire Georg Neumann GmbHM&A
Background
Sennheiser sought to strengthen its position in professional studio recording and microphone technology.
Action taken
The company acquired Neumann and integrated production into a new cleanroom facility in Wedemark while retaining Neumann’s official Berlin identity.
Aftermath
Neumann became a major professional brand within the broader Sennheiser portfolio.
Source

Recent events

2026.08.20
Reported2026.08.20
Sennheiser launches MOMENTUM True Wireless 5 earbuds[3]森海塞尔发布MOMENTUM True Wireless 5真无线耳机finance.sina.com.cn
Sennheiser launched its new flagship true wireless earbuds, MOMENTUM True Wireless 5, redesigned around sustainability, with user-replaceable batteries in both the earbuds and the charging case. The product goes on sale September 3 at $299.95, the same price as the previous generation launched in early 2024.
2021.07.26
Reported2021.07.26
Sennheiser offers discounts during Amazon Prime Day[4]Sennheiser在亚马逊Prime Day期间推出折扣indiatoday.in
Sennheiser announced discounts on audio products during Amazon Prime Day in India, including a 20% discount on MTW-2 true wireless earphones and discounts on other listed products. The two-day sale was stated to start that day.
2021.06.24
Reported2021.06.24
Sennheiser unveils XS Lav microphones in India[5]森海塞尔在印度推出XS Lav麦克风glamsham.com
Sennheiser unveiled the XS Lav microphone in two variants for content creators in India.
2021.06.24
Reported2021.06.24
Sennheiser launches MKE 400 microphone in India[6]森海塞尔在印度推出 MKE 400 麦克风themobileindian.com
Sennheiser launched the MKE 400 compact shotgun microphone in India, priced at Rs 16,900 and available exclusively on Amazon from launch day.
2021.06.01
Sennheiser Evolution Wireless Digital series announced[7]森海塞尔 Evolution Wireless Digital 系列发布itbear.com.cn
Sennheiser announced the Evolution Wireless Digital wireless microphone series, which is designed to simplify wireless microphone setup and can be operated through an app.
Unconfirmed
Reported2021.05.20
Sennheiser MKE 400 (2021) microphone goes on sale in China[8]森海塞尔 MKE 400（2021 款）麦克风在中国开售finance.sina.com.cn
The Sennheiser MKE 400 (2021) microphone is on sale through JD.com in China.
Unconfirmed
Reported2021.05.12
Sonova completes acquisition of Sennheiser’s consumer business[9]Sonova完成收购Sennheiser消费品业务eprice.com.hk
Sonova completed its acquisition of Sennheiser’s consumer products business. The transaction includes a license for Sonova to use the Sennheiser brand for consumer products.
Unconfirmed
Sonova to acquire Sennheiser’s consumer division[10]Sonova拟收购森海塞尔消费者部门itbear.com.cn
Sonova agreed to acquire Sennheiser’s consumer division, which focuses on headphones and hearing products for private customers. The transaction was expected to be completed in the second half of 2021.
Unconfirmed
Reported2021.03.03
Sennheiser adds TruVoicelift functionality to TeamConnect Ceiling 2[11]Sennheiser为TeamConnect Ceiling 2加入TruVoicelift功能technuter.com
Sennheiser introduced TruVoicelift as a free firmware update for TeamConnect Ceiling 2, adding voice-amplification functionality for in-room audio.
2021.03
Sennheiser launches IE 100 PRO in-ear monitoring headphones[12]森海塞尔发布 IE 100 PRO 入耳式监听耳机citnews.com.cn
Sennheiser launched its IE 100 PRO in-ear headphones, including a wireless set with a Bluetooth cable option.

Sources73 sources

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