Seis Akustik GmbH

What Seis Akustik GmbH does

Seis Akustik GmbH is a privately held German audio and media technology specialist headquartered in Ronnenberg-Empelde, Lower Saxony, focused on acoustically demanding institutional spaces such as churches, cathedrals, theatres, and state parliaments. Founded in 1980 by Uwe Sonntag and Bernd Seidel in Hannover, the company developed custom loudspeaker and microphone systems for reverberant spaces where commercial off-the-shelf products fail, and entered the digital era in 1995 with its first in-house DSP-controlled audio system. The product portfolio spans proprietary microphones (MK7, MK6, KM503, LED design series), digital beam-steering DSP loudspeakers (BSF, BSA, CXA, BS, CXM, CX series), DSP matrix amplifiers (SDA200-DANTE, SDA290 PRO2), wireless hymn display systems (VISIO-S-pro), hearing assistance systems (SCV800, SCV1200, INDUCTON 5), and video streaming products (Media Center 14, IVideoApp, Digital-PTZ cameras), unified through Dante audio networking and the Plenar-TV software platform for parliamentary proceedings. The firm operates a lean internal team of 5 employees supported by four certified German regional area representatives and three international distribution partners covering Austria, Switzerland, and the Netherlands. Revenue is generated through custom project-based system sales, equipment rental, and a maintenance and repair service, with payment terms requiring a 40% deposit on orders exceeding €10,000 net and the remaining 60% due upon acceptance. The acquisition criterion is highly specialized: each project begins with on-site acoustic measurement, EASE simulation, and bespoke system design tailored to the specific architecture and reverberation profile of the venue. Management transitioned in 2015 to Thomas Hauptstock (Medientechnik) and Rainer Krause (Kirchentechnik), with Heinz Auge as a third Managing Director for distribution.

Name

Seis Akustik GmbH

Legal name

Seis Akustik GmbH

Website

https://seis-akustik.de

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

1–10 employees

Short description

Seis Akustik GmbH is a German audio and media technology specialist that designs, manufactures, and installs custom DSP loudspeaker, microphone, and AV systems for acoustically demanding institutional spaces — primarily churches, cathedrals, theatres, and state parliaments across Germany and the European Community.

Ownership category

akta.pro rank

Headquarters

HQ city

Ronnenberg-Empelde

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales

Revenue model

1. Custom Audio/Video System Sales and Installation: Sale and installation of bespoke acoustic and media technology systems tailored to individual church and institutional projects. Revenue recognized upon project completion with typical 40/60 payment split.
2. Equipment Rental: Rental of technical equipment, devices, and systems for events, with daily or contract rates and provisions for damage/loss liability.
3. Maintenance and Repair Services: Repair, inspection, and maintenance of installed systems. Cost estimates charged at €30 net per incident plus parts.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Seis Akustik GmbH is a German audio system house that manufactures and integrates professional audio and media technology for churches, theatres, conference halls and other acoustically demanding venues. The company produces its own DSP loudspeakers, beam-steering column arrays, microphones, amplifiers and hearing loop systems, combined with proprietary control software and on-site acoustic engineering, installation and maintenance services.

Product overview

Seis Akustik GmbH is a German manufacturer of professional audio and media technology solutions, specializing in church acoustics and conference room technology. The product portfolio centers on proprietary microphones, DSP amplifiers, and loudspeaker systems (BSF, BSA, CXA, BS, CXM, CX, WM, D, EZ series), complemented by song display systems (VISIO series), mobile amplifier solutions (MA series), video streaming products (MC14, IVideoApp, EDS-Software, PTZ cameras), hearing assistance technology (INDUCTON 5, SCV systems), and the Plenar-TV software platform. The company offers comprehensive services including acoustic design consulting, church technology solutions, and media technology integration. The product ecosystem is unified through proprietary DSP matrix amplifiers (SDA series) that serve as central control units, with Dante network integration enabling professional audio-over-IP installations.

Differentiator

Problem solved

Functional benefit

Products and services

• BSF loudspeaker series (DSP column arrays) Active DSP-controlled column loudspeakers with integrated digital signal processing, designed for venues requiring very high speech intelligibility and discreet visual integration.
• BSA beam-steering loudspeaker series Electronically steerable column loudspeakers that allow the acoustic beam to be aimed precisely at audience areas, reducing unwanted reflections in reverberant spaces.
• CXA loudspeaker series Compact professional loudspeakers from the Seis Akustik product family used in custom audio installations.
• Automatic mixer systems Automatic microphone mixing systems that manage multiple open microphones and adapt gain automatically for clear speech in conferences, council chambers and worship spaces.
• Hearing loop and accessibility systems Induction loop systems that transmit audio directly to hearing aids for hearing-impaired users in churches, theatres and public buildings.
• SONIC DSP software platform Proprietary software platform for configuring, tuning and operating DSP-based active loudspeakers, enabling venue-specific acoustic adjustment.
• FALCON media control system Centralized media control system used to operate audio, video, lighting and other media functions in conference rooms and venues from a single interface.
• Microphones and accessories Microphones and accessories supplied as part of complete audio system solutions for worship, conference and theatre applications.
• Amplifiers and system electronics Amplifiers and supporting system electronics used to drive loudspeaker installations in custom audio projects.
• Custom acoustic design, installation and maintenance services End-to-end engineering services including on-site acoustic measurement and simulation, custom system design, installation, commissioning and long-term maintenance for installed audio and media systems.

Quantifiable outcome

• Speech intelligibility improved in historically challenging acoustic environments such as cathedrals, pilgrimage churches, and reverberant halls
• +2 more outcomes

Named customers11 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration11 records

Feature11 records

Partnerships

Seven partnerships are on record, tiered core.

• Sydow Medien Berlin GmbHcoreChannel Partner/ Reseller/ DistributorCertified regional area representative covering the East distribution area of Germany. Represented in the contact page with dedicated contact person Christian Sydow.
• Show + Media Design e.K.coreChannel Partner/ Reseller/ DistributorCertified regional area representative covering the Southwest distribution area of Germany. Represented with contact person Elischa Dommer.
• Reichhart GmbHcoreChannel Partner/ Reseller/ DistributorCertified regional area representative covering Bavaria (Southeast distribution area). Contact person: Mario Reichhart.
• Klein Beschallungs- und Kirchentechnik KölncoreChannel Partner/ Reseller/ DistributorCertified regional area representative covering the West distribution area of Germany. Contact person: Paul Klein.
• Akustik ProcoreChannel Partner/ Reseller/ DistributorCertified international partner for Austria, based in Linz (Hasnerstrasse 32, A-4020 Linz). Website: www.akustik-pro.at. Listed in the contact page under 'Ansprechpartner Europa / Österreich'.
• Muribaer AGcoreChannel Partner/ Reseller/ DistributorCertified international partner for Switzerland, based in Büron (Bettenweg 12, CH-6233 Büron). Website: muribaer.ch. Listed under 'Ansprechpartner Europa / Schweiz'.
• Schaapsound B.V.coreChannel Partner/ Reseller/ DistributorCertified international partner for the Netherlands with three locations covering North, South, and East regions. Listed under 'Ansprechpartner Europa / Niederlande'.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Adamson Systems Engineering Inc. Canadian professional audio manufacturer producing line-array loudspeakers, point-source systems, and networked AV installations for touring and installed applications including houses of worship. Comparable installed-sound focus overlapping with Seis Akustik's institutional customer base.
• Fohhn Audio AG: German manufacturer of beam-steering line-array loudspeakers and DSP amplifiers for installed sound in churches, cathedrals, theatres, and conference venues - the same institutional acoustic niche Seis Akustik serves. Direct overlap on beam-steering technology, German manufacturing base, and house-of-worship target market.
• Martin Audio Ltd. UK manufacturer of professional loudspeaker systems including O-Line and Torus series for installations in churches, theatres, and conferencing venues. Direct peer in fixed-installation pro audio for acoustically challenging rooms, with comparable technology stack and target customer profile.
• L-Acoustics SAS: French manufacturer of professional sound systems including beam-steering lines (L Series, KS series) and integrated amplification/processing for large installations including cathedrals and performing arts centres. Direct peer in high-end installed and live-installation beam-steering technology.
• d&b audiotechnik GmbH: German professional audio manufacturer offering line-array loudspeakers, DSP amplifiers (D-series), and installation-focused solutions for theatres, concert halls, and houses of worship. Comparable German engineering base and installed/institutional sound focus, though at materially larger scale.
• Pan Acoustics GmbH: German specialist in active, digitally controlled beam-steering line-array speakers and PoE networked audio systems for houses of worship, parliaments, and transportation. Highly comparable as a German-engineered beam-steering specialist competing in the same reverberant-space verticals.
• Meyer Sound Laboratories, Inc. US manufacturer of high-end self-powered loudspeakers, CAL column array beam-steering systems, and integrated audio solutions for cathedrals, theatres, and legislative chambers. Comparable as a premium installed-sound specialist serving the same reverberant institutional spaces.
• Renkus-Heinz Inc. US-based manufacturer of Iconyx digitally steered line-array loudspeakers widely deployed in cathedrals, legislative chambers, and transportation hubs. Direct peer on beam-steering column arrays specifically engineered for reverberant and historically sensitive spaces.

Broad incumbents

• Bose Professional: Division of Bose Corporation offering a broad installed-sound portfolio (ArenaMatch, EdgeMax, MA12) including beam-steering column arrays used in houses of worship, transport, and conferencing. Competes with Seis Akustik in the cathedral/institutional segment but as part of a much wider global pro-AV portfolio.
• Biamp Systems, LLC: US manufacturer of networked AV processors, DSP, and conferencing systems (Tesira, Devio, Parlé) widely specified for legislative chambers, courtrooms, and houses of worship. Comparable in the parliamentary AV and control-system layer where Seis Akustik also positions itself with partners like Studer and Televic.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SeisAkustik
• LinkedInlinkedin.com/company/seis-akustik-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Seis Akustik GmbH