The Mad Professor Ruby Red Booster is a Mad Professor boost pedal, currently around $129.99. Close alternatives include the Klon KTR and the Colorsound Power Boost. It pairs well with the Dumble Steel String Singer and the Fender Prosonic.
Mad Professor Ruby Red Booster
Mad Professor · pedal
The Mad Professor Ruby Red Booster is a clean boost and treble booster pedal with Master, Boost, and Treble controls, plus an internal switch for a high-quality buffer in bypass mode. Boost sets the gain of the booster from unity up to roughly 40dB, high enough that the pedal begins to distort internally when cranked, letting it double as a light overdrive. Treble adds up to about 15dB of carefully tuned high-end boost with an optimized bass slope, and Master sets the final output level after the booster stage. It is a versatile utility pedal that functions as a regular boost, a treble booster, or a light overdrive depending on how the Boost control is set.
- boost
- treble
- overdrive
- clean boost
- gain
- touch
- saturation
- stage
Price updated Aug 27, 2026
Genres the Mad Professor Ruby Red Booster is commonly used in
- Rock
- Classic Rock
- Blues
- Indie Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Mad Professor Ruby Red Booster
Dumble Steel String Singer
Dumble
28% matchDumble Steel String Singer's smooth balances out the bright tone
Fender Prosonic
amplifier
25% matchRun Fender Prosonic after it and the bright edge settles into something more warm
Orange Little Bass Thing
Orange
tonal matchOrange Little Bass Thing's warm balances out the bright tone
Fuchs ODS II Custom 25/50 Combo
Fuchs
tonal matchFuchs ODS II Custom 25/50 Combo's warm balances out the bright tone
Gibson GA-50
Gibson
tonal matchGibson GA-50 leans warm right where the bright tone needs it
Orange BT1000H Terror Bass 1000-Watt Bass Amp
Orange
tonal matchWhere this leans bright, Orange BT1000H Terror Bass 1000-Watt Bass Amp answers back warm
Orange Terror Bass
Orange
tonal matchWhere this leans bright, Orange Terror Bass answers back warm
Blackstar Artisan 15H Handwired 15W Tube
Blackstar
tonal matchBlackstar Artisan 15H Handwired 15W Tube leans warm right where the bright tone needs it
Pedals that stack with the Mad Professor Ruby Red Booster
Catalinbread SFT
Catalinbread
19% matchRun Catalinbread SFT after it and the bright edge settles into something more warm
Fender Bubbler Chorus
Fender
19% matchRun Fender Bubbler Chorus after Mad Professor Ruby Red Booster in the signal chain, clear of Mad Professor Ruby Red Booster's own gain stage
Xotic BB Preamp
Xotic
19% matchXotic BB Preamp's smooth balances out the bright tone
Donner Lax Comp
Donner
17% matchDonner Lax Comp leans toward transparent, and that's a real, usable character to pair with
Line 6 DL4 Delay Modeler
pedal
11% matchKeep Line 6 DL4 Delay Modeler after Mad Professor Ruby Red Booster in the signal chain, clear of Mad Professor Ruby Red Booster's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Caroline Guitar Company Kilobyte
Caroline Guitar Company
11% matchRun Caroline Guitar Company Kilobyte after Mad Professor Ruby Red Booster in the signal chain, clear of Mad Professor Ruby Red Booster's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
SolidGoldFX Commodore Breaker Overdrive
Solidgoldfx
tonal matchWhere this leans bright, SolidGoldFX Commodore Breaker Overdrive answers back smooth
Dunlop Echoplex Preamp
Dunlop
tonal matchWhere this leans bright, Dunlop Echoplex Preamp answers back smooth
Cheaper alternatives
67Audio Libido
67audio
74% similarityShared character: boost, dark, true_bypass
Demon FX Full BB Preamp
Demon Fx
72% similarityShared character: boost, treble, gain
Sonicake Trio Rider
Sonicake
69% similarityShared character: long_cable_runs, high_end, true_bypass
Matthews Effects The Pocket Drive Overdrive Boost
Matthews Effects
63% similarityShared character: boost, overdrive
Hiwatt WEM Copicat Boost
Hiwatt
62% similarityShared character: boost
Carl Martin Hydra boost
Carl Martin
95% similaritysimilar tone character
Boutique & premium upgrades
Xotic RC Booster
Xotic
72% similarityShared character: boost, treble, touch
Xotic BB Preamp Andy Timmons Limited Edition Pedal
Xotic
72% similarityShared character: boost, true_bypass, pedal
Analog Man King of Tone
Analog Man
70% similarityShared character: boost, market, treble
Rodenberg LDP Overdrive/Clean Boost
Rodenberg
64% similarityShared character: pedal, boost, overdrive
Crazy Tube Circuits Super Conductor
Crazy Tube Circuits
61% similarityShared character: boost
J. Rockett Archer Clean
J Rockett
95% similaritysimilar tone character
Similar charactersee all similar tone character →
Klon KTR
Klon
71% similarityShared character: boost, true_bypass, touch
Colorsound Power Boost
Colorsound
70% similarityShared character: boost, dark, treble
Suhr Koko Boost
Suhr
70% similarityShared character: boost, true_bypass, pedal
Matthews Effects Architect
Matthews Effects
65% similarityShared character: true_bypass, boost, overdrive
IK Multimedia Z-Tone Buffer Boost
Ik Multimedia
65% similarityShared character: long_cable_runs, high_end, true_bypass
Mooer Solo
Mooer
63% similarityShared character: boost, overdrive
See all alternatives to the Mad Professor Ruby Red Booster (cheaper + boutique) →
Questions people ask
What are good alternatives to the Mad Professor Ruby Red Booster?+
The closest matches in character are the Klon KTR, the Colorsound Power Boost, the Suhr Koko Boost. Budget picks: 67Audio Libido, Demon FX Full BB Preamp, Sonicake Trio Rider. Boutique upgrades: Xotic RC Booster, Xotic BB Preamp Andy Timmons Limited Edition Pedal, Analog Man King of Tone.
What pairs well with the Mad Professor Ruby Red Booster?+
Strong matches from rig and tone-complementarity evidence: Dumble Steel String Singer, Fender Prosonic, Orange Little Bass Thing — Dumble Steel String Singer's smooth balances out the bright tone.
How much does the Mad Professor Ruby Red Booster cost?+
Around $129.99 (live listing price, updated Aug 27, 2026).