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UK VOX AMPS History of Vox in the UK JMI Era Vox Amps: 1959-65 JMI Era UL Series Hybrid Amps: 1966-67 JMI-VSL Era Solid State Amps: 1967-73 VSEL/Corinthian Era Vox Tube Amps: 1968-70 Birch Stolec Era Vox Amps: 1970-73 Dallas Era Vox Amps: 1973-78 Rose Morris Era Vox Amps: 1978-92 Korg Era Tube Amps 1993-25 Korg Era Solid State and Hybrid Vox Amps:1999-25 Korg Era Vox Valvetronix Amps - 2001-16 US VOX AMPS VOX ORGANS VOX GUITARS Vox Solid Body Elec Guitars: 1960-88 Vox Semi-Acoustic Elecric Gtrs: 1964-68 Vox Acoustic Guitars: 1964-70 Vox Bass Guitars: 1962-87 Voxton Guitars & Basses: 1969-70 Vox Gtrs & Basses, Korg Era: 1998-25 VOX FX & MISC View All Products Vox Tape Echo & Reverb Units:1963-68 Vox Microphones and Mixers Vox Boosters Vox Wah Wah Pedals: 1967-2025 Vox Effects Pedals: 1965-2025 Vox Tonelab & Stomplab FX Processors Vox Amplugs Vox Ampliphonic Accessories: 1968 Vox Accessories Vox Promotional Items VOX CATALOGS VOX MANUALS MY VOX BAND SEARCH WHAT'S NEW

VTB-1 Vox Treble Booster Pedal - (2026)

The original #149 Vox Treble Booster (shown at left) was introduced on page five of the JMI price list from September 1964. It was housed in a sturdy chrome plated steel case measuring ~4 ⅝ long, ~1¼" wide and ~¾" deep. It included a power switch, ¼" input jack and a ¼" plug to connect the Treble Booster to a guitar amp.

Vox wasn't the only player in the treble booster game. In 1965, the UK-based Dallas Arbiter released the curiously titled Dallas Rangemaster treble booster which became a staple of the British blues-rock sound. Brian May, Eric Clapton, Roger McGuinn, Rory Gallagher and Marc Bolan, among others, included a treble booster in their effects arsenal. Germanium vs Silicon Transistors Both the original British Vox Treble Booster and the Dallas Rangemaster relied on a battery operated single stage audio amplifier circuit driven by a lone germanium transistor. Germaniums are legendary for their warm, non-linear response, but they were far from perfect—frequently falling victim to heat related failures, noisy response and erratic performance. Silicon transistors eventually arrived in the middle 60s to fix these technical flaws, in fact, the #149 JMI Vox Treble Booster switched to a silicon transistor in later production. Still, for tone purists, the original germanium circuits possess the mojo that modern silicon transistors can't quite replicate. Development of the Reissue VTB-1 Vox Treble Booster Vox could have easily cloned the original 1964 Treble Booster or the Dallas Rangemater, but the engineering team refused to compromise on modern reliability. Facing a global shortage of dependable germanium transistors, they set out to do the impossible: engineer a treble booster circuit that delivered the warm, non-linear vintage response of germanium transistors with the bulletproof performance of silicon. After conducting an in-depth study of numerous original treble boosters and spending months modeling their behavior, Vox engineers devised a new method that replicated the nuanced non-linear response of a germanium transistor using a single BC108 “silver can” silicon transistor. First introduced in 1966, the BC-108 was selected by Vox for its abillity, when properly biased, to sound like a germanium while maintaining the reliability of a silicon transistor. Unlike the original #149 Vox Treble Booster which was mounted directly to an input jack on the amplifier’s control panel, the VTB-1 Treble Booster was designed as a stompbox for convenient remote operation. It also featured a rotary level control for adjusting the amount of boost, a “Fat” switch that shifted the boosted frequencies down into the midrange and a red LED to indicate when the unit was powered on. The Vox VTB-1 Treble Booster retailed for $209.99 USD when introduced in January 2026 with a typical "street" price of $149.99 USD.