The MXR CSP203 is an MXR distortion pedal, currently around $199. Close alternatives include the Catalinbread Katzenkonig and the Catalinbread Giygas. It pairs well with the Magnatone 280 and the Gibson Les Paul LP-1 Preamp.

MXR CSP203

MXR · pedal

The MXR CSP203 La Machine is a Custom Shop fuzz pedal delivering a classic, aggressive vintage fuzz character suited to rock and psychedelic playing, with an octave switch adding an upper octave to the signal for extra harmonic complexity and versatility. Running on standard 9V DC power, it's built for players wanting a vintage-inspired fuzz voicing enhanced with switchable octave-up textures beyond a standard single-mode fuzz circuit.

What stands out

  • “Valued for combining classic, aggressive vintage fuzz tone with a genuinely useful built-in octave-up option, giving more range than a fixed-voicing fuzz”

    — from the community notes

  • “Primary use case is rock and psychedelic playing wanting raw, vintage-character fuzz with the option of added octave harmonics”

    — from the community notes

  • “The MXR CSP203 La Machine is a Custom Shop fuzz pedal delivering a classic, aggressive vintage fuzz character suited to rock and psychedelic playing, with an octave switch adding an upper octave to the signal for extra harmonic complexity a…”

    — from the listing

  • “As part of MXR's Custom Shop series, it targets players seeking a more boutique, vintage-focused fuzz experience than MXR's mainline production pedals”

    — from the reviews

  • “Running on standard 9V DC power, it's built for players wanting a vintage-inspired fuzz voicing enhanced with switchable octave-up textures beyond a standard single-mode fuzz circuit”

    — from the listing

  • fuzz
  • octave
  • psychedelic
  • vintage
  • harmonics
  • rock
  • aggressive
  • classic rock
$199View on Reverb

Price updated Oct 24, 2026

Genres the MXR CSP203 is commonly used in

  • Rock
  • Classic Rock
  • Noise Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Experimental
    citedInferred from shared tonal signals, not a stated genre tag.
  • Stoner Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Psychedelic Rock
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the MXR CSP203

Magnatone 280

Magnatone

18% match

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Magnatone 280 layers modulated onto an already fuzzy signal

Comes later in the signal chain

Gibson Les Paul LP-1 Preamp

Gibson

tonal match

Comes later in the signal chain

Gibson Les Paul LP-1 Preamp stacks modulated on top of the fuzzy already here

Magnatone 510

Magnatone

tonal match

Comes later in the signal chain

Magnatone 510 stacks modulated on top of the fuzzy already here

Pedals that stack with the MXR CSP203

Death By Audio Space Bender

Death By Audio

20% match
$270via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Put Death By Audio Space Bender after MXR CSP203 in the signal chain, clear of MXR CSP203's own gain stage

Comes later in the signal chain

Fender Blender

Fender

18% match
$284.16via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → octave)

Fender Blender stacks octave on top of the fuzzy already here

Comes later in the signal chain

Catalinbread Giygas

Catalinbread

18% match
$185.11via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → octave)

Catalinbread Giygas layers octave onto an already fuzzy signal

Comes earlier in the signal chain

Pigtronix Echolution

Pigtronix

12% match

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Keep MXR CSP203's fuzzy voice out front: Pigtronix Echolution goes after MXR CSP203 in the signal chain so its ambient voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Electro-Harmonix Stereo Memory Man Vintage

Electro-Harmonix

12% match
$275via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (fuzzy → modulated)

Put Electro-Harmonix Stereo Memory Man Vintage after MXR CSP203 in the signal chain, clear of MXR CSP203's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Jackson Audio Bloom V2 Compressor/EQ

Jackson Audio

10% match
$263.20via Reverb

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.

MXR CSP203 leans toward fuzzy, and that's a real, usable character to pair with

Comes earlier in the signal chain

Subdecay Octave Theory Octave Modulator Synthesizer

Subdecay

tonal match
$199via Reverb

Comes earlier in the signal chain

Subdecay Octave Theory Octave Modulator Synthesizer goes in front of MXR CSP203 — pitch tracking is cleanest before anything colours the note

EarthQuaker Devices Swiss Things

EarthQuaker Devices

$291.55via Reverb

Cheaper alternatives

Source Audio Soundblox Multiwave Distortion

pedal

57% similarity
$101via Reverb

Shared character: signal, one octave, fuzz

Suhr Rufus

Suhr

50% similarity
$170via Reverb

Shared character: one octave, fuzz

Malekko Helium MKI

Malekko

43% similarity
$100via Reverb

Shared character: one octave

Electro-Harmonix Lizard Queen Octave/Fuzz

Electro-Harmonix

43% similarity
$69.95via Reverb

Shared character: one octave, simple

Boutique & premium upgrades

ThorpyFX The Dane

ThorpyFX

56% similarity
$304.56via Reverb

Shared character: fuzz, classic rock

EarthQuaker Devices Life Pedal V3

EarthQuaker Devices

51% similarity
$269.99via Reverb

Shared character: one octave, fuzz

ThorpyFX The Dane MKII

ThorpyFX

47% similarity
$289.14via Reverb

Shared character: fuzz

Chase Bliss Automatone Preamp MKII

Chase Bliss Audio

46% similarity
$695via Reverb

Shared character: fuzz, aggressive playing

Crazy Tube Circuits Unobtanium Raw

Crazy Tube Circuits

45% similarity
$275.60via Reverb

Shared character: raw, fuzz, aggressive playing

One Control Bjfe in your hand series Shades

One Control

43% similarity
$289.99via Reverb

Similar voicing: harmonically rich

Similar character

Catalinbread Katzenkonig

Catalinbread

55% similarity

Shared character: one octave, fuzz, aggressive playing

Catalinbread Giygas

Catalinbread

54% similarity
$185.11via Reverb

Shared character: one octave, fuzz

Mr. Black White Widow

Mr Black

50% similarity

Shared character: fuzz

Caroline Guitar Company Crom

Caroline Guitar Company

47% similarity
$189via Reverb

Shared character: fuzz, aggressive playing, vintage charm

Black Arts Toneworks -Fnord

Black Arts Toneworks

45% similarity

Shared character: one octave

Voodoo Lab Superfuzz

Voodoo Lab

44% similarity
$179.99via Reverb

Shared character: one octave, fuzz, classic rock

See all alternatives to the MXR CSP203 (cheaper + boutique) →

Questions people ask

What are good alternatives to the MXR CSP203?+

The closest matches in character are the Catalinbread Katzenkonig, the Catalinbread Giygas, the Mr. Black White Widow. Budget picks: Source Audio Soundblox Multiwave Distortion, Suhr Rufus, Malekko Helium MKI. Boutique upgrades: ThorpyFX The Dane, EarthQuaker Devices Life Pedal V3, ThorpyFX The Dane MKII.

What pairs well with the MXR CSP203?+

Strong matches from rig and tone-complementarity evidence: Magnatone 280, Gibson Les Paul LP-1 Preamp, Magnatone 510 — Magnatone 280 layers modulated onto an already fuzzy signal.

How much does the MXR CSP203 cost?+

Around $199 (live listing price, updated Oct 24, 2026).

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