Design, construction, restoration, modification, customization, and overhaul of guitar and bass amplifiers, specializing in valve/tube equipments.

Replacement of valves/tubes, advice on brands and models to use in order to achieve the desire sound.

Bias Adjustment.

Repair and maintenance of loudspeakers. Replacement of dust cap, spider, surround and cone.

Manufacture and customization of cables.

Customization, replacement and repair of electronics for guitars and basses, as well as tuning and overhaul.

Design, manufacture, restoration, modification/customization, tuning and repair of effects pedals.