DaDa Electronic Services We offer repair and modifications services in addition to DIY kits for the following vintage Quad Electronics components. Please note that certain DaDa locations specialze in different Quad products and it is necessary to make contact before sending your component to us to assure it is going to the correct location.: Quad 33 Preamplifier (Installation and DIY Kits) Quad 34 Preamplifier (Installation and DIY Kits) Quad 44 Preamplifier Quad 303 Amplifier (Installation and DIY Kits) Quad 50E Amplifier (Installation and DIY Kits) Quad 306 Amplifier (Installation and DIY Kits) Quad 405 Amplifier (Installation and DIY Kits) Quad 405-2 Amplifier (Installation and DIY Kits) Quad 606 Amplifier (Installation and DIY Kits) Quad 606-2 Amplifier (Installation and DIY Kits) Quad 707 Amplifier Quad 909 Amplifier Quad AM1 Tuner Quad FM1 Tuner Quad FM2 Tuner Quad FM3 Tuner Quad FM4 Tuner Quad Forty Tube Amplifier Quad Forty II Tube Amplifier DaDa Exclusinve Design High End Audiophile Quad 303 Replacement Circuit Boards (Installation and DIY Boards) DaDa Exclusinve Design High End Audiophile Quad 405 Replacement Circuit Boards (Installation and DIY Boards) More Links: Contact us for help and product info View our F.A.Q.section Site Map