Vox Flat 4 Booster
This vacuum tube booster can be used for a mid-boost, treble-boost, and overdrive, in addition to a full-range boost. Its Baxandall tone circuit allows adjustment from the flat position to the desired boost or cut range. Raising the gain will gradually apply a low-cut, giving you an overdrive sound that's strongly reminiscent of sought-after vintage tones. An independent mid-boost switch lets you switch the response of the mid-range, which is ideal for playing lead. This is a great unit for blues guitarists who wish to highlight their picking nuances.
Input impedance: 1M Ω
Output impedance: 2.2k Ω
Vacuum tube: ECC83 / 12AX7
Connections: INPUT jack (guitar input), OUTPUT jack (line output)
Power: AA battery x 6
AC adapter: DC 9V (Option)
Vacuum tube operating voltage: 200 V
Consumption current: 240 mA
Battery Life: Approximately 7 hours
Dimensions: (W x D x H): 87 x 132 x 63 / mm, 3.43 x 5.20 x 2.48 / inch
Weight: 420 g / 14.81 oz (not including battery)
Accessories: AA alkaline battery x 6 (for verifying operation)
Options: AC Adapter
*Specifications and appearance are subject to change without notice for improvement.