Provides Superior Preamplification for: Microphones, Instruments and Line Level Sources V3ﾙ - Variable Valve Voicing OPLﾙ - Output Protection Limiting Hand Selected 12AX7A Provides 70dB of Gain Smooth, Warm and Fat Sound Quality Variable Input and Output Gain Controls Excellent as a Tube DI XLR and 1/4" Inputs and Outputs +48 Volts of Phantom Power Phase Reversal Switch Portable, All Steel Construction