The Catalinbread Formula 55 is a Catalinbread overdrive pedal, currently around $179.99. Close alternatives include the Catalinbread Formula 5F6 and the Catalinbread Wiio. It pairs well with the Fender Vibrolux 6G11 and the 1959 Fender Tweed Deluxe.
Catalinbread Formula 55
Catalinbread · pedal
The Catalinbread Formula 55 is a Fender 5E3 Tweed Deluxe-inspired overdrive from Portland, Oregon, capturing the warm, saggy, richly compressed character of the small tweed amplifier pushed to its natural saturation point. The 5E3 circuit produces a distinctive bloom and sag on low notes combined with a bright, cutting top end, creating a warm yet lively overdrive character associated with Neil Young, Billy Gibbons, and early American rock and blues. The Formula 55 extracts this specific amp character into a pedal format. Made in Portland by Catalinbread.
What stands out
“Fender 5E3 Tweed Deluxe-inspired overdrive capturing the warm sag, rich compression, and bright top-end bloom of the small tweed Fender amp driven naturally”
— from the community notes
“The 5E3 circuit produces a distinctive bloom and sag on low notes combined with a bright, cutting top end, creating a warm yet lively overdrive character associated with Neil Young, Billy Gibbons, and early American rock and blues”
— from the listing
“The Catalinbread Formula 55 is a Fender 5E3 Tweed Deluxe-inspired overdrive from Portland, Oregon, capturing the warm, saggy, richly compressed character of the small tweed amplifier pushed to its natural saturation point”
— from the listing
“Works most effectively into where the Formula 55 provides the Tweed amp character”
— from the community notes
“The Formula 55 captures the 5E3 Tweed Deluxe character effectively, particularly the sag and bloom that make small tweed Fenders distinctive”
— from the reviews
Trade-offs
“At maximum gain the saturation is warm and thick, losing some of the open sag character in favor of sustained distortion”
— from the reviews
“5e3-specific bloom and compression character that is distinct from both british amp and modern american overdrive voices is the standout quality”
— from the community notes
- top end
- bright
- bloom
- american
- overdrive
- cutting
- tweed amp character
- compression
Price updated Oct 23, 2026
Genres the Catalinbread Formula 55 is commonly used in
- Rock
- Classic Rock
- Americana
- Country
- Blues
- Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Catalinbread Formula 55
Fender Vibrolux 6G11
amplifier
44% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
The Formula 55's tweed-amp sag and bloom echo the Vibrolux's own vintage Fender character.
Comes later in the signal chain
1959 Fender Tweed Deluxe
Fender
38% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
Into a transparent tone, 1959 Fender Tweed Deluxe brings a pull toward mid-forward that's missing
Comes later in the signal chain
Mesa Boogie Lone Star Head
amplifier
38% matchInto a transparent tone, Mesa Boogie Lone Star Head brings a pull toward medium gain that's missing
Comes later in the signal chain
Peavey Classic 30 II 2-Channel 30W 1x12 Combo
Peavey
36% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Into the Classic 30's warm tube breakup, the Formula 55's sagging, bloomy drive pushes it further rather than just adding volume.
Comes later in the signal chain
Fender Vibro-King Custom 60W 3x10 Tube Guitar Combo Amp
amplifier
35% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Catalinbread Formula 55's bright balances out the warm tone
Comes later in the signal chain
Fender Dual Showman
amplifier
31% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Where this leans warm, Catalinbread Formula 55 answers back bright
Comes later in the signal chain
Fender '68 Custom Princeton Reverb 12W 1x10 Tube Guitar
Fender
29% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Catalinbread Formula 55 brings a pull toward compressed that's missing
Comes later in the signal chain
Orange BT1000H Terror Bass 1000-Watt Bass Amp
Orange
26% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Catalinbread Formula 55 leans bright right where the warm tone needs it
Comes later in the signal chain
See all 15 amps that pair with the Catalinbread Formula 55 →
Pedals that stack with the Catalinbread Formula 55
Electro-Harmonix Memory Boy Analog Delay
Electro-Harmonix
34% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Where this leans warm, Catalinbread Formula 55 answers back bright — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Systech Harmonic Energizer
Systech
30% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Catalinbread Formula 55 leans bright right where the warm tone needs it
Comes later in the signal chain
MXR Phase 90
MXR
27% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
The Phase 90's classic-rock sweep follows the Formula 55's bright, tweed-amp bloom for a defined swirl.
Comes later in the signal chain
Beetronics Overhive
Beetronics
26% matchInto a transparent tone, Beetronics Overhive brings a pull toward medium gain that's missing
Ibanez Tube Screamer
Ibanez
26% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (transparent → mid-forward)
The Screamer's mid-forward boost stacks with the Formula 55's own bright, tweed-amp sag and bloom.
One Control Strawberry Red Overdrive
One Control
26% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Where this leans warm, Catalinbread Formula 55 answers back bright
Lovepedal Echo Baby Powder Blue
Lovepedal
26% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Catalinbread Formula 55's bright balances out the warm tone — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
JAM Pedals Delay Llama Mk.3
Jam Pedals
25% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Catalinbread Formula 55's bright balances out the warm tone — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
See all 54 pedals that pair with the Catalinbread Formula 55 →
Cheaper alternatives
Mad Professor Big Tweedy Drive
Mad Professor
62% similarityShared character: blues players, compression, natural
Catalinbread Formula 51
Catalinbread
61% similarity“Like the Formula 55 and Formula 5F6, the Formula 51 extracts the warmth, bloom, and harmonic character of a Fender amp”
Catalinbread Dirty Little Secret
Catalinbread
58% similarityShared character: rich, gain, classic rock
Wampler Plexi-Drive Mini
Wampler
53% similarityShared character: classic rock
DigiTech DOD Overdrive Preamp 250X
Digitech
50% similarityShared character: distortion, overdrive
MXR Timmy Overdrive
MXR
50% similarityShared character: high end, compression, gain
Boutique & premium upgrades
Similar charactersee all similar tone character →
Catalinbread Formula 5F6
Catalinbread
71% similarity“The Bassman-specific warmth and low-mid emphasis may feel too warm or dark for players used to the brighter 5E3 Formula 55 character”
Catalinbread Wiio
Catalinbread
61% similarityShared character: warm, bright, overdrive
Dallas Rangemaster Treble Booster
Dallas
55% similarityShared character: singing, rich, compression
ThorpyFX The J
ThorpyFX
54% similarityShared character: sag, compression, natural
Cornerstone Antique V3
Cornerstone
53% similarityShared character: classic rock, overdrive
Colorsound Power Boost
Colorsound
52% similarityShared character: singing, rich, compression
See all alternatives to the Catalinbread Formula 55 (cheaper + boutique) →
Questions people ask
What are good alternatives to the Catalinbread Formula 55?+
The closest matches in character are the Catalinbread Formula 5F6, the Catalinbread Wiio, the Dallas Rangemaster Treble Booster. Budget picks: Mad Professor Big Tweedy Drive, Catalinbread Formula 51, Catalinbread Dirty Little Secret. Boutique upgrades: Universal Audio Uafx Lion '68 Super Lead Amp, Browne Amplification Carbon, Blackstar HT-Metal.
What pairs well with the Catalinbread Formula 55?+
Strong matches from rig and tone-complementarity evidence: Fender Vibrolux 6G11, 1959 Fender Tweed Deluxe, Mesa Boogie Lone Star Head — The Formula 55's tweed-amp sag and bloom echo the Vibrolux's own vintage Fender character..
How much does the Catalinbread Formula 55 cost?+
Around $179.99 (live listing price, updated Oct 23, 2026).