The Catalinbread Dirty Little Secret MKI is a Catalinbread overdrive pedal, currently around $152.96. Close alternatives include the J. Rockett Broverdrive and the Dunlop Way Huge WM31 Supa-Lead Overdrive. It pairs well with the Orange Matamp and the Laney LX20R.
Catalinbread Dirty Little Secret MKI
Catalinbread · pedal
The Catalinbread Dirty Little Secret mkI is the original version of the Portland boutique builder's Marshall-voiced foundation overdrive. The circuit models the tone and dynamic feel of a cranked vintage British Marshall amplifier, providing classic rock overdrive and crunch. It includes a three-band tone stack based on Marshall amplifier EQ and a mode switch to select between Super Lead and Super Bass voicings. The MkI is the earliest version of the DLS line, praised for its authentic British overdrive character in a compact pedal format. Used by blues, classic rock, and hard rock players.
What stands out
“The MkI is the earliest version of the DLS line, praised for its authentic British overdrive character in a compact pedal format”
— from the listing
“The MkI is respected as the raw, original version of the DLS concept before subsequent refinements, with some players preferring its”
— from the community notes
“The circuit models the tone and dynamic feel of a cranked vintage British Marshall amplifier, providing classic rock overdrive and crunch”
— from the listing
“The Super Lead and Super Bass mode switch is genuinely useful, providing two distinctly voiced overdrive characters that suit different amplifier pairings”
— from the reviews
“The original MkI circuit , which more critical listeners may notice as a slightly rougher top-end response at high gain settings”
— from the reviews
- overdrive
- dynamic
- classic rock
- lead
- british
- more direct character
- eq
- hard rock
Price updated Oct 24, 2026
Genres the Catalinbread Dirty Little Secret MKI is commonly used in
- Classic Rock
- Blues
- Hard Rock
- Rock
- Blues Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Metal
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Catalinbread Dirty Little Secret MKI
Orange Matamp
Orange
38% 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)
Run Catalinbread Dirty Little Secret MKI after it and the warm edge settles into something more bright
Comes later in the signal chain
Laney LX20R
Laney
38% matchThe Dirty Little Secret's dynamic, EQ'd overdrive pushes the LX20R's bedroom-level drive into genuine classic-rock crunch.
Comes later in the signal chain
3rd Power Dragon 25 112 Combo
3rd Power
36% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into the Dragon 25's controllable Plexi-style sag, the Dirty Little Secret's British-voiced crunch has real amp saturation to dig into.
Comes later in the signal chain
Park P50 Classic
Park
36% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Park P50 Classic brings a pull toward compressed that's missing
Comes later in the signal chain
Marshall Super Lead 100-Watt Head
amplifier
34% matchMarshall Super Lead 100-Watt Head's dynamic character and Catalinbread Dirty Little Secret MKI's dynamic voice sit in the same lane rather than fighting each other
Comes later in the signal chain
Hiwatt HB410HN
Hiwatt
33% matchHiwatt HB410HN leans into Marshall-style amps, precisely the platform Catalinbread Dirty Little Secret MKI wants
Comes later in the signal chain
Hiwatt HB210HN
Hiwatt
32% matchCatalinbread Dirty Little Secret MKI is voiced for Marshall-style amps — Hiwatt HB210HN gives it exactly that
Comes later in the signal chain
Orange Rockerverb 50 MkIII Neo Combo
Orange
32% matchCatalinbread Dirty Little Secret MKI is voiced for Marshall-style amps — Orange Rockerverb 50 MkIII Neo Combo gives it exactly that
Comes later in the signal chain
See all 27 amps that pair with the Catalinbread Dirty Little Secret MKI →
Pedals that stack with the Catalinbread Dirty Little Secret MKI
T-Rex Comp-Nova
T Rex
22% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Both lean toward dynamic and compressed respectively — close enough in character that they complement instead of clashing
Comes earlier in the signal chain
Dunlop MXR Distortion Plus
Dunlop
20% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
Into a dynamic tone, Dunlop MXR Distortion Plus brings a pull toward compressed that's missing
Comes later in the signal chain
JAM Pedals Tubedreamer
Jam Pedals
20% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)
JAM Pedals Tubedreamer leans this dynamic tone toward compressed, which it doesn't make on its own
Comes later in the signal chain
MXR Phase 90
MXR
14% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run the Phase 90's classic sweep after the DLS MKI's dynamic, bluesy lead crunch and the modulation has real body to color.
Comes later in the signal chain
Keeley Halo
Keeley
11% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Put Keeley Halo after Catalinbread Dirty Little Secret MKI in the signal chain, clear of Catalinbread Dirty Little Secret MKI's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Electro-Harmonix Canyon
Electro-Harmonix
10% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Electro-Harmonix Canyon after Catalinbread Dirty Little Secret MKI in the signal chain, clear of Catalinbread Dirty Little Secret MKI's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
NuX Masamune Booster & Kompressor
Nux
tonal matchComes earlier in the signal chain
NuX Masamune Booster & Kompressor leans this dynamic tone toward compressed, which it doesn't make on its own
JHS Pedals JHS Pulp N Peel V4
JHS Pedals
tonal matchComes later in the signal chain
Into a dynamic tone, JHS Pedals JHS Pulp N Peel V4 brings a pull toward compressed that's missing
Cheaper alternatives
Tone City TC-T38 Metal Storm classic British-style high
Tone City
48% similarityShared character: high gain settings, hard rock, crunch
Black Country Customs Monolith
Black Country Customs
48% similarityShared character: high gain settings, hard rock, crunch
Dunlop MXR M77 Custom Modified Badass OD
MXR
47% similarityShared character: high gain settings, hard rock, classic rock
Warm Audio ODD Box V1
Warm Audio
47% similarityShared character: high gain settings, response, overdrive
Catalinbread Dirty Little Secret MkIII
Catalinbread
96% similaritysimilar tone character
TC Electronic MojoMojo Overdrive
TC Electronic
93% similaritysimilar tone character
Boutique & premium upgrades
Dunlop MXR Jail Guitar Doors Overdrive JGD2
Dunlop
60% similarityShared character: high gain settings, raw, hard rock
Friedman IR-J Jake E. Lee Preamp
Friedman
53% similarityShared character: high gain settings, hard rock, crunch
Greer Amps Royal Velvet
Greer
49% similarityShared character: high end, classic rock, overdrive
Blackstar HT-Metal
Blackstar
48% similarityShared character: high gain settings, hard rock, crunch
Dophix Lussuria overdrive
Dophix
93% similaritysimilar tone character
Similar charactersee all similar tone character →
J. Rockett Broverdrive
J Rockett
58% similarityShared character: classic rock, overdrive
Dunlop Way Huge WM31 Supa-Lead Overdrive
Dunlop
55% similarityShared character: high gain settings, hard rock, crunch
Electronic Audio Experiments Longsword
Electronic Audio Experiments
53% similarityShared character: classic rock, overdrive
Fulltone OCD
Fulltone
52% similarityShared character: hard rock, response, classic rock
Boss BD-2W Blues Driver Waza Craft
Boss
52% similarityShared character: high end, crunch, classic rock
Alexander Pedals Hot Pink Drive
Alexander Pedals
49% similarityShared character: classic rock, lead, overdrive
See all alternatives to the Catalinbread Dirty Little Secret MKI (cheaper + boutique) →
Questions people ask
What are good alternatives to the Catalinbread Dirty Little Secret MKI?+
The closest matches in character are the J. Rockett Broverdrive, the Dunlop Way Huge WM31 Supa-Lead Overdrive, the Electronic Audio Experiments Longsword. Budget picks: Tone City TC-T38 Metal Storm classic British-style high, Black Country Customs Monolith, Dunlop MXR M77 Custom Modified Badass OD. Boutique upgrades: Dunlop MXR Jail Guitar Doors Overdrive JGD2, Friedman IR-J Jake E. Lee Preamp, Greer Amps Royal Velvet.
What pairs well with the Catalinbread Dirty Little Secret MKI?+
Strong matches from rig and tone-complementarity evidence: Orange Matamp, Laney LX20R, 3rd Power Dragon 25 112 Combo — Run Catalinbread Dirty Little Secret MKI after it and the warm edge settles into something more bright.
How much does the Catalinbread Dirty Little Secret MKI cost?+
Around $152.96 (live listing price, updated Oct 24, 2026).
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