The new "Red Valve" series TB101 valve (12AX7) mic pre-amp is a single channel valve mic preamplifier that features switchable phantom power, phase reverse, -20dB Pad, optical compressor, and fully functional EQ all housed together in a single 1/2U rack mount sized chassis.
Tailored use in the home project studio, the "Red Valve" TB101 is perfectly suited for use as front end mic inputs for your digital recorder or any other application requiring mic preamplification.

Hand tested 12AX7 tube
CLASS A Transformless high voltage signal path
Switchable Phantom Power
Switchable Phase reversal
Optical Compressor
EQ circuitry
Input gain control
-20dB pad
110v-220v External power supply
Size : 1/2U Rack

Performance: THD + Noise (un-weighted):0.05%@0dB Tube,
Drive:10%@30dB Tube Drive

Input Impedance: XLR: 5k ohms 5k Ohms,
¼ “ High Z: 1Meg ohms
Output Impedance: XLR Balanced: 51 ohms,
¼” TRS Unbalanced: 51 ohms

Panel Controls: Gain: 0dB to +30dB,
20dB pad,
Phase Reverse,
+ 48V Phantom Power
Metering: 8 Segmented LED: -25dBu to +18dBu
Power Supply: Type: Linear Supply,
Switchable:110V / 220V,
Input:17 VAC / 1000mA