Development and manufacturing of loudspeakers, amplifiers, and complete audio systems for the automotive industry.
Suzhou Sonavox Electronics Co., Ltd.
Suzhou (CN) · Gröbenzell (DE) · Isenbüttel (DE) · Lešná (CZ) · Livonia, MI (US) · Huamantla, Tlaxcala (MX) · Indaiatuba, SP (BR)New on Amplifa
About Sonavox
Sonavox is a manufacturer of audio products and systems for the automotive industry with headquarters in Suzhou, China. Founded in 1975, the company employs around 2,400 people at seven sites in six countries on four continents. The portfolio ranges from individual audio components such as loudspeakers and amplifiers to complex integrated vehicle sound systems, from standard quality to brand-defined audiophile quality, including AVAS systems. In addition to series production with end-of-line testing, Sonavox offers engineering services: research and development, CAE simulation (from 1D lumped-parameter models to 3D FEA multiphysics), sound tuning, as well as test and validation. Manufacturing is carried out with a high level of vertical integration at all sites; the Suzhou location hosts the competence and innovation center with a validation laboratory and reference listening rooms. Customers include international automotive manufacturers such as Volkswagen, Ford, SVW, SGM, Bose, and PACCAR/DAF.
- Site
- 3 Suzhou
- Processes
- Manufacturing of audio products and loudspeakers (automotive audio), CAE simulation (1D lumped parameter to 3D FEA multiphysics), Sound tuning / acoustic tuning, End-of-line testing in series production, Development and manufacturing of vehicle amplifiers and AVAS systems, Sound Tuning, Simulation (CAE), Test and Validation
- Materials
- Paper blend (membrane/paper blend for speaker chassis), Paper membrane (paper blend for speaker chassis), Electronics (amplifiers, AVAS)
- Certificates
- Ford Q1, VW A-supplier (since 2006)
- Founded
- 1975
- Employees
- 2400
- Industries
- Automotive, Automotive Audio/OEM
- 01
Research & Development
- 02
CAE Simulation
- 03
Sound Tuning
- 04
Test & Validation
- 05
Series Production
- 06
End-of-Line Testing
Materials & Processes
Paper membrane (paper blend for speaker chassis)
Proprietary paper blends for membranes and cones are developed and optimized in Suzhou.
Electronics (amplifiers, AVAS)
Development and manufacturing of vehicle amplifiers and AVAS systems.
Sites
Suzhou
CNHeadquarters, R&D and competence center, production, validation laboratory
- Materials
- Papier-Mix, ELEKTRONIK
- Temperature-humidity chamber
- Cold/heat shock chamber
- Vibration table (with temperature)
- Shock test table
- Water-tightness test chamber
- Dust-tightness test chamber
- Salt spray test chamber
- Reference listening room
Gröbenzell
DESonavox Europe GmbH – sales and engineering
Isenbüttel
DEEngineering Center, Sound Tuning
- Tuning room
Lešná (Lhotka nad Bečvou)
CZSonavox CZ s.r.o. – production
Livonia, MI
USDetroit Sonavox Inc.
Huamantla, Tlaxcala
MXMexico Sonavox Electronics – production
Indaiatuba, SP
BRSonavox Indústria e Comércio de Alto Falantes Ltda. – production
Products
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of audio products and loudspeakers (automotive audio)Assembly | – | – | – | – | – |
| CAE simulation (1D lumped parameter to 3D FEA multiphysics)Engineering | – | – | – | – | – |
| Sound tuning / acoustic tuningEngineering | – | – | – | – | – |
| Testing | – | – | – | – | – |
| End-of-line testing in series productionTesting | – | – | – | – | – |
| Development and manufacturing of vehicle amplifiers and AVAS systemsAssembly | – | – | – | – | – |
8 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Temperature-humidity chamber | – | – | – | – | Suzhou (validation laboratory) |
| Cold/heat shock chamber | – | – | – | – | Suzhou (validation laboratory) |
| Vibration table (with temperature) | – | – | – | – | Suzhou (validation laboratory) |
| Shock test table | – | – | – | – | Suzhou (validation laboratory) |
| Water-tightness test chamber | – | – | – | – | Suzhou (validation laboratory) |
| Dust-tightness test chamber | – | – | – | – | Suzhou (validation laboratory) |
| Salt spray test chamber | – | – | – | – | Suzhou (validation laboratory) |
| Reference listening room (tuning facility) | – | – | – | – | Suzhou / Isenbüttel |
Additional services
Reference customers
Quality
A fully equipped validation laboratory in Suzhou conducts temperature, humidity, cold/heat shock, vibration, shock, water, dust, and salt spray tests, with product parameters continuously monitored during testing. Industry-standard end-of-line testing methods are used in series production.
| Evidence | Suzhou |
|---|---|
| Ford Q1 | |
| VW A-supplier (since 2006) |
History
- 1975
Company founded in Suzhou, China (as 吴县无线电元件一厂).
- 1985
Quality supplier for SVW (Shanghai Volkswagen).
- 1992
Conversion through joint venture into Suzhou Sonavox Electronics Co., Ltd.
- 1997
First loudspeaker supplier for SGM.
- 2003
Ford becomes a customer; first exports to North America.
- 2005
Founding of Detroit Sonavox Inc. in Livonia, MI, USA.
- 2006
Volkswagen becomes a customer; first exports to Germany; classified as an A-supplier by VW.
- 2007
Founding of Sonavox Europe GmbH in Gröbenzell near Munich.
- 2008
New production site: Sonavox CZ s.r.o. in Lešná, Czech Republic.
- 2012
New production plant in Indaiatuba, São Paulo, Brazil.
- 2013
Second engineering center in Isenbüttel near Wolfsburg; focus on sound tuning.
- 2014
Shareholder restructuring: Chinese government 40 %, management 35 %, Suzhou Shida Tongtai 25 %.
- 2017
Production site in Tlaxcala, Mexico; renaming to 苏州上声电子股份有限公司; DAF Supplier Award (PACCAR China).
- 2018
Bose Supplier Quality Zero Defect Award.