Red Panda Bit Mixer 3 Input MixerThe Bit Mixer is a small, high quality mixer designed for pedalboards. It features ultra low distortion, low noise op amps. High impedance inputs are designed for guitar, but work with line level signals as well. Each input has a volume knob that goes from off to unity gain. Only 4. 4 x 2. 6, and works with standard pedal power supplies from 9 18 V. The Bit Mixer is always on when power is connected. An internal LED is visible below the power jack.