• Aktive og passive højttalere – også professionelt grej, guitarforstærkere, m.m.
• Udskiftning af kantophæng eller membran (reconing) på bas- og mellemtoneenheder.
• Reparation eller udskiftning af diskantenheder, delefiltre, terminaler, potentiometre m.m.
• Servicering og reparation af Hifi og PA-forstærkere.

Rep. af højttalere: Accoustic Energy®, Accoustic Research®, ACR®, ACRON®, AIWA®, Akai®, Allison®, Alpine®, Altec®, ALR®, Amt®, Aristona®, Arundel®, ASW®, Audax®, Audio Lab®, Audio Physic®, Auris®, Avalon Acoustic®, Axton®, Backe®, Backes & Müller®, Bang&Olufsen® (B&O), Bowers&Wilkens® (B&W), Beringer®, Beyma®, Blaupunkt®, Bose®, Boss®, Boston®, Braun®, Cabasse®, Caliber®, Canton®, Celestion®, Cernarvon®, Cerwin-Vega®, Clarion®, Coral®, Craaft®, Criterion®, Crunch®, Dahlquist®, Dali®, Davis®, Dayton®, Denon®, Dual®, Dynaudio®, Dynacord®, Earthquake®, Eaton®, Ecouton®, Elac®, Eltax®, Electro Voice®, Elipson®, Eltax®, Emminence®, Emphaser®, Erres®, ESS®, Evidence®, Excel®, Fane®, Fifa®, Floting®, Focal®,Fosgate®, Fostex®, Garrard®, Gauss®, Genesis®, Görlich®, Gods®, Goodmans®, Gradient®, Grade®, Grundig®, Hans Deutsch®, Hama®, Harman Kardon®, Harley Benton®, Hartke®, Heco®, Hifonics®, Highland Audio®, Hilo®, Hughe & Kettner®, Ibanez®, IMF®, Impulse®, Infinity®, Inosic®, Interaudio®, Isophon®, Jamo®, Janszen®, JBL®, Jensen®, Johnson®, Jordan®, JVC®, Kef®, Kenwood®, Kirkseater®, KLH®, K&H®, Klipsch®, Körting®, Leak®, Lansing®, LPG®, Luxman®, Magnat®, Mainhattan®, Marantz®, Marshall®, MB Quart®, McAudio®, Mc Farlow®, Mc Voice®, Mission®, Mirsch®, Mivoc®, Monacor®, Mordaunt Short®, Morel®, Multicell®, NAD®, Nordmende®, Novex®, Nubert®, Omnytronic®, Onkyo®, Orange®, Paradigm®, Peavey®, Peerless®, Phase Linear®, Philips®, Phill Jones®, Piega®, Pioneer®, PMC®, Pyle®, Quad®, Quadral®, Raveland®, Ravemaster®, Realistic®, Rega®, Reynaud®, Revel®, Revox®, RFT®, Rockford®, Rockwood®, Roland®, Saba®, Sansui®, ScanSpeak®, Seas®, Sherwood®, Siare®, Signat®, Sirus®, Skytronic®, Snell Acoustics®, Solton®, Sonab®, Sonofer®, Sonus Faber®, Sony®, Spectron®, Spendor®, Spirit®, Studiocraft®, Summit®, Synthese®, System Audio®, T&A®, Tannoy®, Teac®, Technics®, Telefunken®, Teufel®, Thiel®, Tonsil®, Translator®, Triangle®, Thruster®, TSM®, Uher®, Van Medevoort®, Vecteur®, Vega®, Velodyne®, Vieta®, Vifa®, Verit®, Viper Audio®, Visaton®, Visonic®, Vivanco®, Warfedale®, Warwick Audio®, Wersi®, WHD®, Wilson Audio®, Xetex®, Yamaha®, Zeck®, m.fl.