INSTRUCTIONS FOR USE Pro-Ject Tube Box S
Dear music lover, thank you for purchasing a PRO-JECT AUDIO phono amplifier. In order to achieve maximum performance and reliability you should study these instructions for use carefully. ! Warning of a hazard for the user, the unit or possible misuse. Important notice. Safety instructions ! AC outlet voltages vary from country to country. Before connecting to the mains, make sure that the voltage in your area meets the voltage requirements printed on the power supply.
100pF 200pF Input impedance / input capacitance – high-output MC and MM cartridges 47k 50pF ON ON ON 150pF ON 270pF ON 370pF ON + 1 2 3 4 5 6 7 8 1 2 3 4 5 6 5 6 5 6 5 6 Input impedance – low-output MC cartridges 10R 100R 1000R 2000R * Input capacitance is irrelevant for low-output MC cartridges 10 ON 1 2 3 4 5 6 7 8 100 1k 2k ON ON ON ON 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 51dB 41dB Input gain 61dB ON ON 1 2 3 4 5 6 7 8 51dB 7 8 41dB ON ON 7 8 7 8 © Audio Trade GmbH · Pro
Connectors 18V Pro-Ject Audio Systems, Vienna, Austria ! Make all connections whilst the phono amplifier is disconnected from the power supply. Take care to connect the left and right channels correctly. The right channel is usually marked red, the left channel black or white. Do not connect the phono amplifiers output to a phono input (sometimes labelled gram, disc or RIAA) on the amplifier. Never use any other power supply than the one supplied with the unit.
Technical specifications Pro-Ject Tube Box S A Typical for low output MC cartridges, B typical for MM or high output MC cartridges * Input capacitance is irrelevant for low-output MC cartridges Tubes: 2 x ECC83 (12AX 7A) Input impedance: 10ohms, 100ohms, 1kohm, 2kohms A Input capacitance / impedance: 50pF, 150pF, 270pF and 370pF */47kohms B Together with other input impedance settings without any influence! Input gain: 41dB B / 51dB and 61dB A Noise floor: 94dB (A weighted) at 41dB input gain 75dB (A weigh
