The BK Butler 911 Tube Driver is an overdrive pedal, currently around $259. Close alternatives include the Shins Music Shin's Music Velvet Boost and the Walrus Audio WAL-385/MK2 #BK. It pairs well with the Marshall Plexi 1959SLP and the Dumble Overdrive Special Amp Head.
BK Butler 911 Tube Driver
Unknown brand · pedal
The BK Butler 911 Tube Driver is a boutique overdrive built around a real 12AX7 vacuum tube, producing rich, buttery, singing overdrive tones with a saturated, harmonically complex character that has never been fully replicated by solid-state circuits. It ranges from a smooth, light drive or clean boost to a thick, heavy overdrive, and is closely associated with Eric Johnson's singing violin-tone lead sound, David Gilmour's go-to drive since the Division Bell album, and players including Billy Gibbons, Joe Satriani, and Joe Bonamassa. Its tube-driven response reacts strongly to pick dynamics and interacts closely with the specific amp it's paired with, which also means it can be finicky and less consistently versatile across different amps. It suits players chasing a distinctive, warm, tube-driven overdrive character worth dialing in with the right rig.
What stands out
“The BK Butler 911 Tube Driver is a boutique overdrive built around a real 12AX7 vacuum tube, producing rich, buttery, singing overdrive tones with a saturated, harmonically complex character that has”
— from the listing
“[Pros] ✓ Provides a creamy boost for solos ✓ Offers unique Colorsound reminiscent of Gilmour's 70s work ✓ Bias control version highly recommended for tonal flexibility ✓ Heritage piece with a history of satisfied users [Cons] ✗ High price …”
— from the reviews
“It ranges from a smooth, light drive or clean boost to a thick, heavy overdrive, and is closely associated with Eric Johnson's singing violin-tone lead sound, David Gilmour's go-to drive since the Division Bell album, and players including …”
— from the listing
“Its tube-driven response reacts strongly to pick dynamics and interacts closely with the specific amp it's paired with, which also means it can be finicky and”
— from the listing
“It suits players chasing a distinctive, warm, tube-driven overdrive character worth dialing in with the right rig”
— from the listing
- overdrive
- creamy
- boost
- drive
- buttery
- rich
- boutique
- tube
Price updated Oct 24, 2026
Genres the BK Butler 911 Tube Driver is commonly used in
- Blues
cited
Inferred from shared tonal signals, not a stated genre tag. - Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
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 BK Butler 911 Tube Driver
Marshall Plexi 1959SLP
amplifier
19% matchBK Butler 911 Tube Driver's smooth character and Marshall Plexi 1959SLP's aggressive voice sit in the same lane rather than fighting each other
Comes later in the signal chain
Dumble Overdrive Special Amp Head
Dumble
17% matchDumble Overdrive Special Amp Head leans toward dynamic, and that's a real, usable character to pair with
Comes later in the signal chain
Pedals that stack with the BK Butler 911 Tube Driver
Dallas Rangemaster Treble Booster
Dallas
13% matchDallas Rangemaster Treble Booster leans toward germanium, and that's a real, usable character to pair with
Comes earlier in the signal chain
MXR Distortion+
MXR
12% matchBK Butler 911 Tube Driver's smooth character and MXR Distortion+'s gritty voice sit in the same lane rather than fighting each other
Comes later in the signal chain
Electro-Harmonix Small Stone
Electro-Harmonix
10% matchPut Electro-Harmonix Small Stone after BK Butler 911 Tube Driver in the signal chain, clear of BK Butler 911 Tube Driver's own gain stage
Comes later in the signal chain
Ashdown Macchiato Compressor Guy Pratt Signature
Ashdown
8% matchAshdown Macchiato Compressor Guy Pratt Signature's own compressed character is the real reason this is worth trying
Comes earlier in the signal chain
Roland SDE-3000D
Roland
7% matchPut Roland SDE-3000D after BK Butler 911 Tube Driver in the signal chain, clear of BK Butler 911 Tube Driver's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Walrus Audio Mako D1 High-Fidelity Stereo Delay V1
Walrus Audio
7% matchPut Walrus Audio Mako D1 High-Fidelity Stereo Delay V1 after BK Butler 911 Tube Driver in the signal chain, clear of BK Butler 911 Tube Driver's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Cheaper alternatives
Rodenberg SL-OD
Rodenberg
60% similarityShared character: smooth, lead, overdrive
Spaceman Saturn VI
Spaceman
59% similaritySimilar role and voicing
Keeley Red Dirt Overdrive
Keeley
56% similarityShared character: rich, boost, thickness
Catalinbread Teaser Stallion
Catalinbread
56% similarityShared character: rich, thickness, smooth
MXR CSP037 Raijin Drive
MXR
55% similarityShared character: rich, smooth, lead
Donner Dumbal Drive
Donner
54% similarityShared character: boost, thickness, smooth
Boutique & premium upgrades
Similar charactersee all similar tone character →
Shins Music Shin's Music Velvet Boost
Shins Music
63% similarityShared character: boost, smooth
Walrus Audio WAL-385/MK2 #BK
Walrus Audio
63% similarityShared character: thickness, overdrive
SolidGoldFX Commodore Bluesbreaker-Style Overdrive
Solidgoldfx
59% similarityShared character: rich, smooth, overdrive
Bixonic Expandora
Bixonic
57% similarityShared character: rich, boost, thickness
Wampler Belle
Wampler
54% similarityShared character: boost, smooth, lead
Univox UD-50 Uni-Drive
pedal
53% similarityShared character: rich, boost, thickness
See all alternatives to the BK Butler 911 Tube Driver (cheaper + boutique) →
Questions people ask
What are good alternatives to the BK Butler 911 Tube Driver?+
The closest matches in character are the Shins Music Shin's Music Velvet Boost, the Walrus Audio WAL-385/MK2 #BK, the SolidGoldFX Commodore Bluesbreaker-Style Overdrive. Budget picks: Rodenberg SL-OD, Spaceman Saturn VI, Keeley Red Dirt Overdrive. Boutique upgrades: Vemuram Butter Machine.
What pairs well with the BK Butler 911 Tube Driver?+
Strong matches from rig and tone-complementarity evidence: Marshall Plexi 1959SLP, Dumble Overdrive Special Amp Head, Dallas Rangemaster Treble Booster — BK Butler 911 Tube Driver's smooth character and Marshall Plexi 1959SLP's aggressive voice sit in the same lane rather than fighting each other.
How much does the BK Butler 911 Tube Driver cost?+
Around $259 (live listing price, updated Oct 24, 2026).