Treble Booster Professional

BOOSTER

The Treble Booster Professional is a refined adaptation of the classic Rangemaster circuit, incorporating my preferred modifications to enhance its performance. These enhancements include an enlarged output capacitor value for a broader frequency spectrum and an increased potentiometer value paired with a higher-gain transistor to achieve a more robust tonal character. Each unit is meticulously crafted with a range of premium components, including a modified Dallas Rangemaster circuit featuring a 6-position tone switch, and a choice between a Mullard OC45 germanium or OC202 silicon transistor. The device boasts vintage potentiometers from renowned manufacturers, high-quality electrolytic capacitors, and a 6-position rotary input capacitor switch utilizing audiophile-grade paper-in-oil or mylar capacitors. Other notable features include a new old stock (NOS) output capacitor, an assortment of carbon composition resistors, true bypass switching, and an LED indicator. The Treble Booster Pro is hand-wired on a phenolic terminal strip, housed in a hammered-finish Hammond 125b enclosure, and adorned with classic Daka-Ware control knobs, resulting in a professional-grade effect pedal that combines vintage charm with modern reliability and tonal versatility.