Portfolio In this portfolio you will find a selection of small and large projects that we have built in recent years. Stringwood We build amplifiers and pedals for Stringwood. These are supplied designs that we manufacture for Stringwood. Triton audio We build various microphone preamps for Triton Audio. Lex Bos We build amplifiers, cabinets and pedals for Lex Bos. Kauffmann We build various cabinets for Kauffmann’s Guitar Store. Eurovolt We build and distribute the EUROVOLT on behalf of Brownbox USA. custom cabinets We have built dozens of speaker cabinets on behalf of customers.