The Electro-Harmonix Micro Metal Muff TOP Boost is an Electro-Harmonix boost pedal, currently around $68.70. Close alternatives include the Electro-Harmonix Glove and the Colorsound Power Boost. It pairs well with the Matchless DC-30 and the Swart Space Tone Atomic Jr. Two-Tone.
Electro-Harmonix Micro Metal Muff TOP Boost
Electro-Harmonix · pedal
The Electro-Harmonix Micro Metal Muff with Top Boost is a compact high-gain metal distortion pedal from EHX, building on the Metal Muff circuit with the addition of a Top Boost switch that adds a clean gain-boosted signal blend above the distorted output for enhanced upper-frequency clarity and presence. The Micro Metal Muff delivers extreme saturation suited to heavy metal and modern rock rhythm playing, with a three-band EQ and a Scoop switch for the standard modern metal scooped frequency curve. The Top Boost addition addresses the common issue of metal distortion losing clarity at high gain by adding a clean presence layer.
What stands out
“The Micro Metal Muff delivers extreme saturation suited to heavy metal and modern rock rhythm playing, with a three-band EQ and a Scoop switch for the standard modern metal scooped frequency curve”
— from the listing
“The Top Boost addition addresses the common issue of metal distortion losing clarity at high gain by adding a clean presence layer”
— from the listing
“High-gain metal distortion with a three-band EQ, Scoop switch, and a Top Boost feature that adds a clean presence layer above the saturated signal for enhanced clarity at high gain”
— from the community notes
“The Electro-Harmonix Micro Metal Muff with Top Boost is a compact from EHX, building on the Metal Muff circuit with the addition of a Top Boost switch that adds a clean gain-boosted signal blend above the di…”
— from the listing
“building on the metal muff circuit with the addition of a top boost switch that adds a clean gain-boosted signal blend above the distorted output for enhanced upper-frequency clarity and presence”
— from the listing
- metal
- high gain
- distortion
- clarity
- boost
- presence
- muff
- eq
Price updated Oct 23, 2026
Genres the Electro-Harmonix Micro Metal Muff TOP Boost is commonly used in
- Metal
- Rock
- Hard Rock
cited
Inferred from shared tonal signals, not a stated genre tag. - Heavy Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Death Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Djent
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Electro-Harmonix Micro Metal Muff TOP Boost
Matchless DC-30
Matchless
37% matchElectro-Harmonix Micro Metal Muff TOP Boost's own voicing points at Vox-style amps, and Matchless DC-30 delivers it
Comes later in the signal chain
Swart Space Tone Atomic Jr. Two-Tone
Swart
34% matchThe Micro Metal Muff's high-gain, boosted distortion pushes hard against the Space Tone's lush, boutique breakup.
Comes later in the signal chain
Vox MV50-CE Rock
Vox
34% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
The MV50's tight, direct-recording crunch gives the Micro Metal Muff's clear, high-gain metal boost a focused amp voice to push into.
Comes later in the signal chain
Mesa Boogie Mark I
Mesa Boogie
34% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
Mesa Boogie Mark I takes that scooped character and pushes it toward mid-forward
Comes later in the signal chain
Bad Cat Black Cat
Bad Cat
31% matchElectro-Harmonix Micro Metal Muff TOP Boost is voiced for Vox-style amps — Bad Cat Black Cat gives it exactly that
Comes later in the signal chain
Matchless C-15 Head
Matchless
30% matchElectro-Harmonix Micro Metal Muff TOP Boost's own voicing points at Vox-style amps, and Matchless C-15 Head delivers it
Comes later in the signal chain
Vox AC10 C1 Custom TTCC Limited Edition
Vox
29% matchWhat Electro-Harmonix Micro Metal Muff TOP Boost brings here leans toward high gain — that's worth building a pairing around
Comes later in the signal chain
Bad Cat Hot Cat
Bad Cat
29% matchgain stackingStacks two gain stages for more saturation than either produces alone. (mid-forward → high gain)
Bad Cat Hot Cat leans into Vox-style amps, precisely the platform Electro-Harmonix Micro Metal Muff TOP Boost wants
Comes later in the signal chain
See all 29 amps that pair with the Electro-Harmonix Micro Metal Muff TOP Boost →
Pedals that stack with the Electro-Harmonix Micro Metal Muff TOP Boost
Ibanez Tube Screamer
Ibanez
39% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
Push the Micro Metal Muff's clear, high-gain metal boost with the Screamer's own mid-forward boost and the two compound into real weight.
Comes later in the signal chain
Nobels ODR-1
Nobels
32% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
Nobels ODR-1 pushes a scooped tone toward mid-forward
Comes later in the signal chain
Orange Series Phaser
Orange
25% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Orange Series Phaser after Electro-Harmonix Micro Metal Muff TOP Boost in the signal chain, clear of Electro-Harmonix Micro Metal Muff TOP Boost's own gain stage
Comes later in the signal chain
Pigtronix Philosopher's Tone Micro
Pigtronix
24% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (scooped → mid-forward)
What Pigtronix Philosopher's Tone Micro brings here leans toward mid-forward — that's worth building a pairing around
Comes earlier in the signal chain
Boss RV-5 Digital Reverb
pedal
13% 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 Boss RV-5 Digital Reverb after Electro-Harmonix Micro Metal Muff TOP Boost in the signal chain, clear of Electro-Harmonix Micro Metal Muff TOP Boost's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Catalinbread Epoch-Set
Catalinbread
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Push the Micro Metal Muff's clear, high-gain metal boost into the Epoch-Set's warm, lower-mid tape echo and the repeats trail off real saturation. — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Ibanez CD5 Cyberdrive
Ibanez
tonal matchComes later in the signal chain
Ibanez CD5 Cyberdrive takes that scooped character and pushes it toward mid-forward
Mooer Demonfx TS Green
Mooer
tonal matchComes later in the signal chain
Stack Mooer Demonfx TS Green on top and a scooped tone tightens toward mid-forward
Cheaper alternatives
Boutique & premium upgrades
MXR Fullbore Metal
MXR
59% similarityShared character: high gain settings, metal, distortion
ToneConcepts Distillery 'The Luke'
Toneconcepts
58% similarityShared character: presence, boost, clarity
MXR Super Badass Distortion
MXR
57% similarityShared character: boost, distortion, high gain settings
Wren and Cuff J Mascis Garbage Face Fuzz
Wren And Cuff
56% similarityShared character: full, lead
Tone City Holy Aura
Tone City
56% similarityShared character: boost, presence, clarity
Wampler Dracarys
Wampler
55% similarityShared character: metal, clarity, distortion
Similar charactersee all similar tone character →
Electro-Harmonix Glove
Electro-Harmonix
56% similarityShared character: boost
Colorsound Power Boost
Colorsound
53% similarityShared character: boost, clarity, high gain settings
Silktone Overdrive Plus
Silktone
51% similarityShared character: distortion, high gain settings, full
Electro-Harmonix Nano Big Muff Pi
Electro-Harmonix
50% similarityShared character: full, lead
EarthQuaker Devices Hoof
EarthQuaker Devices
50% similarityShared character: full, lead
Dunlop MXR M94SE Super Badass Distortion
Dunlop
94% similaritysimilar tone character
See all alternatives to the Electro-Harmonix Micro Metal Muff TOP Boost (cheaper + boutique) →
Questions people ask
What are good alternatives to the Electro-Harmonix Micro Metal Muff TOP Boost?+
The closest matches in character are the Electro-Harmonix Glove, the Colorsound Power Boost, the Silktone Overdrive Plus. Budget picks: Fender Hammertone Metal, NuX Drive Force. Boutique upgrades: MXR Fullbore Metal, ToneConcepts Distillery 'The Luke', MXR Super Badass Distortion.
What pairs well with the Electro-Harmonix Micro Metal Muff TOP Boost?+
Strong matches from rig and tone-complementarity evidence: Matchless DC-30, Swart Space Tone Atomic Jr. Two-Tone, Vox MV50-CE Rock — Electro-Harmonix Micro Metal Muff TOP Boost's own voicing points at Vox-style amps, and Matchless DC-30 delivers it.
How much does the Electro-Harmonix Micro Metal Muff TOP Boost cost?+
Around $68.70 (live listing price, updated Oct 23, 2026).