
Handcrafted design speakers made from restored vintage suitcases with Bluetooth, battery and high-quality audio technology

Klangkoffer GbR
DarmstadtNew on Amplifa
About Klangkoffer
Klangkoffer GbR from Darmstadt transforms used vintage travel suitcases, some over 60 years old, into handcrafted mobile design speakers. Each suitcase is individually selected, refurbished and converted into a sound suitcase; on request, suitcases sent in by customers are also converted. The devices are equipped with Bluetooth and an AUX connection, an amplifier, individually selected speakers and a lithium-ion battery from Samsung for up to 24 hours of runtime at around 3 hours charging time. Two sound suitcases can be coupled into stereo pairs via a second connected playback device. Before assembly, the sound is simulated, and after construction the acoustics are optimized with high-quality microphone technology. The products are made by hand in Darmstadt, presented at trade fairs, design markets and occasionally in stores, and sold in direct customer contact.
- Site
- Darmstadt
- Processes
- Conversion/restoration of vintage suitcases into handcrafted design speakers, Sound simulation before assembly and acoustic optimization with microphone technology, Conversion of customers' own suitcases into personal sound suitcases, Handcrafting/manufacturing to customer requirements, Exhibition at trade fairs and design markets
- Materials
- Lithium-ion battery (Samsung), used vintage suitcases, Used vintage suitcases, Speakers & amplifier, Bluetooth & AUX technology
- Industries
- Consumer/design products, Consumer electronics
- 01
Selection and refurbishment of used vintage suitcases
- 02
Individual selection of speakers and components
- 03
Conversion and assembly by hand
- 04
Sound simulation before assembly
- 05
Acoustic optimization with microphone technology
- 06
Direct sales, exhibition at trade fairs and design markets
Materials & Components
Used vintage suitcases
Old travel suitcases (some over 60 years old), often made of various materials, are restored and converted.
Lithium-ion battery (Samsung)
High-quality battery for up to 24 hours of runtime and approx. 3 hours charging time.
Speakers & amplifier
Individually selected audio components for precise bass and clear highs.
Bluetooth & AUX technology
Wireless connection with smartphone, tablet or PC as well as alternatively via audio cable.
Location

Darmstadt
DEDevelopment, manufacturing and sales (visits by appointment)
- Lot size
- Single pieces/one-offs
- Materials
- Vintage suitcases, battery, speakers, amplifier, Bluetooth technology
Products




Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Conversion/restoration of vintage suitcases into handcrafted design speakersAssembly | – | – | – | – | old travel suitcases (various materials), lithium-ion battery, speakers, amplifier, Bluetooth technology |
| Sound simulation before assembly and acoustic optimization with microphone technologyTesting | – | – | – | – | – |
Additional services
History
- 2014
Founding idea in mid-2014; team members met while studying mechanical engineering at TU Darmstadt