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The Spell Booster

The Spell Booster provides up to +22dB of clean boost with magic shimmering highs and lows.

Place it before a distortion/fuzz/overdrive pedal and you can easily push your crunchy rhythm sound into high gain lead territory without getting all excessive noise and mud like when you try with another distortion pedal. Place it after a harsh or to middy pedal and you can tame it easily. Place it at the end of your pedal board to compensate for  different backline behaviour. The Spell will help you fine tune any guitar pickups mid response and also compensate in volume changes between guitars.


The Spell Booster's low noise level and true bypass makes it useful in any position of your pedal board.

All hand built in Sweden.



The Spell Booster has three controls:


The Boost knob adjust the boost level up to +22dB


The unique Mid knob controls the mid within a ±12dB range.


The Hi Cut swirch adjusts the high frequency response. Position 1 reduces the high frequency just bit and position 2 a bit more. FLAT will leave the signal is it is.



Input impedance: 1MΩ

Output impedance: 1kΩ

Power supply: 9 V

Max current: 10mA

Battery type: 9V 6F22

Controls: Boost, MId and Hi Cut

External connectors: Input jack, Output jack and DC jack

Pedal size incl. knobs: (W x H x D) 69mm x 46mm x 112mm / 2.72” x 1.81” x 4.41”

Weight excl. battery and packaging: 225g / 7.93 lbs


"The Spell Booster" by Fredrik Lundgren

Professional Guitar Tube Amplifiers - Handmade in Sweden

Olsson Amps

Terrängvägen 17

129 48 Hägersten, Sweden

Phone: +46 70 57 57 789

info (at] olssonamps.com