50 TOP Evolution Head INTRODUCTION Thank you for buying a Carlsbro product. Correctly used it will provide years of reliable service, and deliver great tone and performance. Please read this user guide thoroughly in order to safeguard your equipment, and obtain maximum performance from it.
It is a fully featured professional standard valve amplifier, equally suited to live and studio work. It is complemented perfectly by Carlsbro’s ‘Classic 412’ cabinet, but can be used with any appropriate 8, 16 or pair of 16 ohm cabinets.
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Connecting a meter between TP1 and TP0 allows the bias voltage to be measured for valve 1, and between TP0 and TP2 allows the bias voltage to be measured for valve 2. Contact the Carlsbro service dept for detailed instructions on biasing of valves Note: We recommend that a qualified electronic technician, using suitable test equipment, performs installation of valves and valve biasing.
The unit does not contain any user serviceable parts. For details of spares, accessories and other Carlsbro products, contact your local dealer. In the event of any difficulty contact our sales office at the address below.