Nearly 30 years of hands-on technical experience.
Repair, service, electronics development and system installation — experience that now works under the ESR brand.

From individual repairs to complete systems.
ESR is built on decades of practical work with professional audio, electronics and lighting equipment. That experience covers not only repair, but also design, fabrication and long-term technical service.
Repair & service
Professional audio, electronics and lighting — from fault finding to post-repair verification.
Electronics development
Custom electronic assemblies and technical solutions for repair, upgrades and unusual applications.
Loudspeakers & acoustics
Voice-coil production, loudspeaker restoration and custom-built loudspeaker systems.
Installations
Design, supply, installation and long-term service of audio, video and lighting systems.
What this experience gives the client
We first understand the fault, then decide whether repair or replacement makes technical sense.
Component-level work helps preserve professional equipment that is still worth restoring.
ESR can repair an individual device, install a complete system and continue servicing it.
Today this experience brings repair, engineering and AV/lighting installation into one technical service.
