FLAT 4 BOOST.
Tone Garage captures the pure essence of analog in these compact effect units by pairing carefully selected components with a unique design philosophy.
The FLAT 4 BOOST takes advantage of VOX’s newly developed Hi-Volt technology and provide not only the warm tone expected from a tube but also the all important feel and dynamics.
Main features:
– Discrete circuitry – the result of a relentless design philosophy.
– True bypass design provides tonal confidence even when the effect is off.
– Tough die-cast body that stands up to the rigors of the road.
– Newly developed Hi-Volt technology allows the tube to operate at 200V, even on battery power.
– Gain control lets you adjust the tonal character.
– Heater current’s slow start circuit ensures vacuum tube longevity.
– Full range booster that delivers true vacuum tube sound.
– An independent mid-boost switch lets you switch the response of the mid-range.
A versatile full-range 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.
VOX FL4BT FLAT 4 BOOST Specifications:
– 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.

Tone Garage captures the pure essence of analog in these compact effect units by pairing carefully selected components with a unique design philosophy.
The FLAT 4 BOOST takes advantage of VOX’s newly developed Hi-Volt technology and provide not only the warm tone expected from a tube but also the all important feel and dynamics. Main features:
– Discrete circuitry – the result of a relentless design philosophy.
– True bypass design provides tonal confidence even when the effect is off.
– Tough die-cast body that stands up to the rigors of the road.
– Newly developed Hi-Volt technology allows the tube to operate at 200V, even on battery power.
– Gain control lets you adjust the tonal character.
– Heater current’s slow start circuit ensures vacuum tube longevity.
– Full range booster that delivers true vacuum tube sound.
– An independent mid-boost switch lets you switch the response of the mid-range. A versatile full-range 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. VOX FL4BT FLAT 4 BOOST Specifications:
– 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.