Vox Tone Garage Flat 4 Boost Vacuum Tube Booster Pedal

Inject genuine high-voltage vacuum tube warmth, organic touch-sensitivity, and versatile tonal shaping into your pedalboard with the Vox Flat 4 Booster Guitar Effects Pedal. Part of Vox's acclaimed Tone Garage series, this boutique stompbox goes far beyond a standard clean boost by incorporating a real 12AX7 tube operating at a true 200 volts.

The Flat 4 Booster is capable of functioning as a full-range boost, treble boost, mid boost, or a vintage-flavored tube overdrive. It features a passive Baxandall tone circuit with dedicated Low and High controls to precisely dial in your preferred frequency response. As you push the Gain control past 12 o'clock, the pedal introduces a gradual low-end roll-off that delivers a warm, singing overdrive reminiscent of classic cranked valve amps. An independent Mid-Boost switch adds extra punch, making it exceptional for cutting through the mix during lead solos.

Key Features of the Vox Flat 4 Booster

• Hi-Voltage Tube Circuitry: Powered by a genuine ECC83 / 12AX7 vacuum tube running at an authentic 200V using Vox's proprietary high-voltage design for true tube dynamics.
• Versatile Boost & Overdrive: Easily configured to deliver a transparent full-range boost, targeted treble/mid boost, or rich vintage-style tube crunch.
• Passive Baxandall EQ Circuit: Features flexible Low and High tone controls to boost or cut frequencies smoothly from a flat response baseline.
• Independent Mid-Boost Switch: Instantly shifts midrange response to give your lead playing extra cut and articulation.
• True Bypass Design: Preserves your clean instrument signal with zero coloration when the effect is disengaged.

Technical Specifications

• Effect Type: Tube-Driven Boost and Overdrive
• Vacuum Tube: ECC83 / 12AX7 (operating at 200V high-voltage)
• Input Impedance: 1M ohms
• Output Impedance: 2.2k ohms
• Connections: 1 x 1/4" Input Jack, 1 x 1/4" Output Jack
• Power Supply: 6 x AA batteries or optional 9V AC adapter (DC 9V)
• Current Consumption: 240 mA
• Battery Life: Approximately 7 hours (using alkaline batteries)
• Dimensions (W x D x H): 87 x 132 x 63 mm (3.43 x 5.20 x 2.48 inches)
• Weight: 420 g / 14.81 oz (excluding batteries)

Push your amp into dynamic, harmonic-rich territory. The Vox Flat 4 Booster delivers true high-voltage valve warmth, flexible Baxandall EQ shaping, and legendary tube responsiveness in a rugged stompbox.