Flat 4 Boost

The Flat 4 Boost by Vox is a vacuum tube booster pedal that offers versatile functionality as a mid-boost, treble-boost, overdrive, and full-range boost. It incorporates a Baxandall tone circuit that allows adjustment from the flat position to the desired boost or cut range. The pedal features an all-discrete circuitry, true bypass design, and a tough die-cast body that can withstand the rigors of the road. The newly developed Hi-Volt technology allows the tube to operate at 200V, even on battery power, and the gain control lets users adjust the tonal character. Additionally, the heater current’s slow start circuit ensures vacuum tube longevity.

Specifications:
- Input Impedance: 1M Ω
- Output Impedance: 2.2k Ω
- Vacuum Tube: ECC83 / 12AX7
- Connections: INPUT jack (guitar input), OUTPUT jack (line output), AC adapter jack

The Flat 4 Boost is suitable for guitarists looking to achieve vintage tube- driven boost tones and is particularly useful for blues guitarists who wish to highlight their picking nuances. The pedal's independent mid-boost switch allows users to switch the response of the mid-range, making it ideal for lead playing.