INSTRUCTIONS FOR USE Pro-Ject Tube Box S2
Dear music lover, thank you for purchasing a Pro-Ject Audio Systems 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.
Examples of typical settings Ortofon 2M Red (MM) input capacitance 147pF, input impedance 47kohms 3-ON rest- OFF Ortofon X5-MC (High-Output MC) input capacitance 367pF, input impedance 47kohms 1,3-ON rest- OFF Ortofon Rondo Red (Low-Output MC) input impedance 10ohms, Input capacitance is irrelevant for low-output MC cartridges 8-ON rest- OFF Connectors Make all connections whilst the phono amplifier is disconnected from the power supply. Take care to connect the left and right channels correctly.
Front panel controls Stand-By The button on the left side of a front panel of the unit turns the unit on or returns it to standby mode. The blue LED above the stand-by push button shows that the unit is switched on. Gain setting Buttons marked with ◄and ► set gain of the amplifier. Selected value is indicated by LED. Possible settings are 40, 43, 50, 53, 60 and 63dB. Subsonic The button on the right side of a front panel turns on and off subsonic filter.
Potential incorrect use and fault conditions No signal on one or both channels: No connection between player and phono amplifier or amplifier. This could be due to a faulty plug, broken wire or solder joint or simply loose plug/socket connection. Strong hum: No earth connection from cartridge or arm, or arm cable to phono amplifier, or earth loop. Output too quiet or too loud, or distorted: Input gain incorrectly set - input overloading or insufficiently amplified.
PRODUCT INFORMATION TUBE BOX S2 Tube phono-preamplifier MSRP 359 € (incl.
PRODUCT INFORMATION Innovative miniature sized phono preamplifier with tube output and high end sound! Tube Box S2 is our very first product to feature a fully discreet circuit design without using any operational amplifiers (OpAmps). It also is the first product to come with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to his preference.
