The Dunlop MXR M85 Bass Distortion is a Dunlop distortion pedal, currently around $157.32. Close alternatives include the Ashdown Triple Shot and the Ashdown James LoMenzo Mega Drive. It pairs well with the Laney DBC410 Digbeth 4x10 Cabinet and the EVH 000.

Dunlop MXR M85 Bass Distortion

Dunlop · pedal

The MXR M85 Bass Distortion is a bass-specific distortion pedal from MXR by Jim Dunlop, designed to deliver high-gain distortion for electric bass while preserving low-end clarity and the clean bass fundamental through a wet/dry blend control. The M85 features two independent clipping modes, a dedicated blend control for mixing distorted signal with clean bass signal in any ratio, and a mid-boost control. The wet/dry blend is the critical practical feature, preventing the distortion circuit from eliminating the bass fundamental that full distortion engagement typically removes. The M85 covers classic rock bass grit through to modern metal bass distortion.

What stands out

  • “The MXR M85 Bass Distortion is a bass-specific distortion pedal from MXR by Jim Dunlop, designed to deliver high-gain distortion for electric bass while preserving low-end clarity and the clean bass fundamental through a wet/dry blend contr…”

    — from the listing

  • “the m85 features two independent clipping modes”

    — from the listing

  • “dry blend control”

    — from the listing

  • “The M85 covers classic rock bass grit through to modern metal bass distortion”

    — from the listing

  • “The blend control is widely praised as the most important feature for maintaining bass presence in a full band mix”

    — from the community notes

  • bass
  • distortion
  • high gain
  • clipping
  • dry
  • low end
  • classic rock
  • mix

Price updated Oct 24, 2026

Genres the Dunlop MXR M85 Bass Distortion is commonly used in

  • Classic Rock
  • Punk
  • Rock
  • Metal
  • Hard Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Alternative
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Dunlop MXR M85 Bass Distortion

Pedals that stack with the Dunlop MXR M85 Bass Distortion

Fjord Fuzz Fjaer Spring Reverb

Fjord Fuzz

26% match
$249via Reverb

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → fuzzy)

Fjord Fuzz Fjaer Spring Reverb stacks fuzzy on top of the mid-forward already here

Comes later in the signal chain

Fjord Fuzz Odin

Fjord Fuzz

26% match
$199via Reverb

gain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → fuzzy)

Put Fjord Fuzz Odin in front and the mid-forward tone leans further toward fuzzy

Comes later in the signal chain

Boss CE-1 Chorus Ensemble

pedal

17% match
$570via 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.

Boss CE-1 Chorus Ensemble's lush voice goes after Dunlop MXR M85 Bass Distortion in the signal chain — it's not there to compete with Dunlop MXR M85 Bass Distortion's own high gain character

Comes later in the signal chain

Crazy Tube Circuits Golden Ratio

Crazy Tube Circuits

14% match

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

Crazy Tube Circuits Golden Ratio's own tight character is the real reason this is worth trying

Comes earlier in the signal chain

Hungry Robot Moby Dick V2

Hungry Robot

13% match
$118via 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. (high gain → lush)

Put Hungry Robot Moby Dick V2 after Dunlop MXR M85 Bass Distortion in the signal chain, clear of Dunlop MXR M85 Bass Distortion's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Hungry Robot The Borderland

Hungry Robot

13% 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. (high gain → modulated)

Hungry Robot The Borderland's modulated voice goes after Dunlop MXR M85 Bass Distortion in the signal chain — it's not there to compete with Dunlop MXR M85 Bass Distortion's own high gain character — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Death By Audio Destruction

Death By Audio

tonal match
$137.70via Reverb

Comes later in the signal chain

Run mid-forward into Death By Audio Destruction for more fuzzy on top

Subdecay F-Bomb

Subdecay

tonal match
$229.95via Reverb

Comes earlier in the signal chain

Put Subdecay F-Bomb in front and the mid-forward tone leans further toward fuzzy

Cheaper alternatives

Boutique & premium upgrades

Similar character

See all alternatives to the Dunlop MXR M85 Bass Distortion (cheaper + boutique) →

Questions people ask

What are good alternatives to the Dunlop MXR M85 Bass Distortion?+

The closest matches in character are the Ashdown Triple Shot, the Ashdown James LoMenzo Mega Drive, the Tech 21 DP-3X Dug Pinnick Signature Bass Distortion. Budget picks: Ashdown Pro-FX Two-Band Boost, Ashdown James LoMenzo HyperDrive, Ashdown James LoMenzo KegaDrive Bass Distortion. Boutique upgrades: Ashdown Geezer Butler Signature, Carl Martin Bass Drive, Orange Bass Butler Bi-Amp Bass Preamp.

What pairs well with the Dunlop MXR M85 Bass Distortion?+

Strong matches from rig and tone-complementarity evidence: Laney DBC410 Digbeth 4x10 Cabinet, EVH 000, Mesa/Boogie JP-2C John Petrucci Signature 60/100-Watt — Stack Laney DBC410 Digbeth 4x10 Cabinet on top and a high gain tone tightens toward tight.

How much does the Dunlop MXR M85 Bass Distortion cost?+

Around $157.32 (live listing price, updated Oct 24, 2026).

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