Multidriver spanning treble boost to crunchy distortion to fuzzy sustain—all-in-one gain shaping with 9V DC.

Analog Vox AC-30 Top Boost preamp with a TRIAD transformer, integrated Rangemaster-style treble boost.

BJF dual booster combining Little Red Trebler and Red Rooster. 40dB boost, 15dB treble boost at 4kHz.

Treble booster in Rangemaster style. Designed for pushing amps into overdrive.

Dallas Rangemaster recreation with hand-picked germanium. Named for Clapton's Bluesbreakers album.

Treble booster with hand-selected NOS 2N2222A transistor. Three-way toggle: treble, mid, or fat voicing.

Three-mode clean boost with full-range, treble, or bass voicing via a simple switch.

Treble booster with master volume and bass control, capturing Rangemaster tones with added flexibility and tube-like feel.

Kirk Hammett distortion with treble booster front-end. Hi/Lo switch for rhythm or lead saturation.

NOS Soviet germanium treble booster with pickup simulator, bias control, and 3-way range switch.

R.J. Ronquillo signature 3-in-1: silicon treble boost, Herculean V2 overdrive, PT2399 slapback echo.

5-range Rangemaster treble booster with Mullard OC44 for Clapton to Iommi tones.

Dallas Rangemaster recreation with hand-picked germanium. Named for Clapton's Bluesbreakers album.

Rangemaster into Fuzz Face circuit. Silicon transistors deliver germanium-style response with stability.

Dallas Rangemaster treble boost with NOS germanium transistor and 3-way input cap switch for bass control.

Sunface fuzz meets Beano Boost treble booster. Tri-germanium circuit, two true-bypass sides.

1176-style compressor with Rangemaster boost, 3-band EQ, and 23V internal headroom.

Rangemaster treble boost with NOS OC71 germanium transistors. Limited to 700 units, sold out fast.

Smooth treble boost for cutting lead tones. Offers clean gain boost with minimal signal coloration.

Limited-run germanium multi-fuzz with military-spec OC44 transistors for richer lows.

Rangemaster-inspired germanium treble booster with Range control and internal Full/Cut switch.

Brian May treble booster and Vox AC30 combination for Queen-inspired tones.

Fuzz with Rangemaster-style treble boost influence. Provides vintage-inspired fuzz with touch-sensitive cleanup.

Four classic boost circuits in one box: silicon treble booster, JFET preamp, op-amp, and MOSFET.