The Maxon ST-9 Pro+ Super Tube is a Maxon overdrive pedal, currently around $276.29. Close alternatives include the Keeley Super AT Mod Overdrive Limited Edition and the Mad Professor Supreme Overdrive. It pairs well with the Synergy SL2 Module and the Friedman BE-Mini Head.
Maxon ST-9 Pro+ Super Tube
Maxon · pedal
The Maxon ST-9 Pro Super Tube is a premium overdrive pedal from Maxon in the Super Tube series, designed to closely emulate the tonal character of a tube amplifier front-end with natural compression, harmonic richness, and dynamic response. The Pro specification includes premium components over the standard ST-9 for improved tonal quality. Maxon's Japanese manufacturing precision underpins the Super Tube platform.
- expressive
- consistent
- natural
- tonal character
- tube
- rock
- platform
- reliable
Price updated Aug 27, 2026
Genres the Maxon ST-9 Pro+ Super Tube is commonly used in
- Rock
- Blues
- 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. - Americana
cited
Inferred from shared tonal signals, not a stated genre tag. - Classic Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Maxon ST-9 Pro+ Super Tube
Synergy SL2 Module
Synergy
tonal matchThe transparent tone has headroom to spare — Synergy SL2 Module gives it high gain to fill it with
Friedman BE-Mini Head
Friedman
tonal matchInto a transparent tone, Friedman BE-Mini Head brings the high gain it's missing
Egnater Tweaker 88 Head
Egnater
tonal matchEgnater Tweaker 88 Head's low gain fills in what this transparent tone doesn't make on its own
Ceriatone 2202H
Ceriatone
tonal matchThe transparent tone has headroom to spare — Ceriatone 2202H gives it high gain to fill it with
Friedman Jose LTD
Friedman
tonal matchInto a transparent tone, Friedman Jose LTD brings the high gain it's missing
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchThe transparent tone has headroom to spare — Hughes & Kettner Warp 7 gives it high gain to fill it with
Bad Cat Lynx 50
Bad Cat
tonal matchInto a transparent tone, Bad Cat Lynx 50 brings the high gain it's missing
Friedman Jose Arredondo
Friedman
tonal matchThe transparent tone has headroom to spare — Friedman Jose Arredondo gives it high gain to fill it with
Pedals that stack with the Maxon ST-9 Pro+ Super Tube
Walrus Audio Eons
Walrus Audio
22% matchInto a transparent tone, Walrus Audio Eons brings the low gain it's missing
Fjord Fuzz Berserk
Fjord Fuzz
21% matchFjord Fuzz Berserk's fuzzy fills in what this transparent tone doesn't make on its own
Dunlop JD-4S Rotovibe
pedal
16% matchPut Dunlop JD-4S Rotovibe after Maxon ST-9 Pro+ Super Tube in the signal chain, clear of Maxon ST-9 Pro+ Super Tube's own gain stage
Xotic SP Compressor
Xotic
12% matchXotic SP Compressor leans toward mid-forward, and that's a real, usable character to pair with
Boss RV-5 Digital Reverb
pedal
8% matchRun Boss RV-5 Digital Reverb after Maxon ST-9 Pro+ Super Tube in the signal chain, clear of Maxon ST-9 Pro+ Super Tube's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Fender Hammertone Reverb
Fender
8% matchRun Fender Hammertone Reverb after Maxon ST-9 Pro+ Super Tube in the signal chain, clear of Maxon ST-9 Pro+ Super Tube's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Tone City Dry Martini
Tone City
tonal matchInto Maxon ST-9 Pro+ Super Tube, Tone City Dry Martini is right at home: it's built around a clean amp's front end
Fender Hammertone Overdrive
Fender
tonal matchFender Hammertone Overdrive is voiced for a clean amp's front end — Maxon ST-9 Pro+ Super Tube gives it exactly that
Cheaper alternatives
Keeley Manis Iconic Overdrive
Keeley
71% similarityShared character: tonal_character, natural, blues_players
Ibanez TS9 40th Anniversary
Ibanez
67% similarityShared character: tonal_character, natural, blues_players
Crazy Tube Circuits Ziggy Overdrive
Crazy Tube Circuits
66% similarityShared character: tonal_character, natural, blues_players
Boss DS-1 Distortion
Boss
65% similarityShared character: blues_players
Matthews Effects Whaler V2
Matthews Effects
65% similarityShared character: tonal_character
Keeley Noble Screamer
Keeley
65% similarityShared character: natural, blues_players
Similar charactersee all similar tone character →
Keeley Super AT Mod Overdrive Limited Edition
Keeley
68% similarityShared character: natural, blues_players
Mad Professor Supreme Overdrive
Mad Professor
67% similarityShared character: natural, blues_players
Maxon VOP-9 Vintage OD PRO
Maxon
66% similarityShared character: natural, blues_players
JHS The Overdrive Preamp
JHS Pedals
65% similarityShared character: natural, blues_players
Way Huge Electronics Green Rhino MkII Overdrive
Way Huge
65% similarityShared character: blues_players
Jackson Audio The Optimist Warped
Jackson Audio
65% similarityShared character: tonal_character, natural
See all alternatives to the Maxon ST-9 Pro+ Super Tube (cheaper + boutique) →
Questions people ask
What are good alternatives to the Maxon ST-9 Pro+ Super Tube?+
The closest matches in character are the Keeley Super AT Mod Overdrive Limited Edition, the Mad Professor Supreme Overdrive, the Maxon VOP-9 Vintage OD PRO. Budget picks: Keeley Manis Iconic Overdrive, Ibanez TS9 40th Anniversary, Crazy Tube Circuits Ziggy Overdrive.
What pairs well with the Maxon ST-9 Pro+ Super Tube?+
Strong matches from rig and tone-complementarity evidence: Synergy SL2 Module, Friedman BE-Mini Head, Egnater Tweaker 88 Head — The transparent tone has headroom to spare — Synergy SL2 Module gives it high gain to fill it with.
How much does the Maxon ST-9 Pro+ Super Tube cost?+
Around $276.29 (live listing price, updated Aug 27, 2026).