VOX flat 4 booster

Flat 4 Booster


Product Description

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.


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VOX FL4BT FLAT 4 BOOST Specifications

Input impedance:

1M Ω

Output impedance:

2.2k Ω

Vacuum tube:

ECC83 / 12AX7


INPUT jack (guitar input), OUTPUT jack (line output)


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


420 g / 14.81 oz (not including battery)


AA alkaline battery x 6 (for verifying operation)

Options:AC Adapter

*Specifications and appearance are subject to change without notice for improvement.

Specifications and features are subject to change without notice.

VOX flat 4 booster

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