A compact but genuinely fierce distortion/fuzz built around three matched NOS BC184C transistors, covering a wide range from classic crunch through to compressed, howling fuzz with extended sustain — even at fairly low volumes.
Key Features
- Distortion/fuzz built around three matched NOS BC184C transistors
- Wide range from classic crunch to compressed, howling fuzz
- Sustain holds even at relatively low volumes
- Compact enclosure
Controls
Control layout not independently confirmed this pass — if you can confirm the actual knobs from your own stock, I’ll fill this section in properly rather than guess.
Power
Power requirements not independently confirmed this pass — please check your own unit or the manual before publishing.
Who Is This For
Worth a look if you want a compact pedal that covers classic crunch through to full, howling fuzz territory, with genuine sustain even at lower volumes.
[Video to be confirmed and added]
What does the Fulltone Mas Malo do?
It’s a distortion/fuzz pedal built around three matched NOS BC184C transistors, covering a wide range from classic crunch to compressed, howling fuzz with extended sustain.
What power supply does the Mas Malo need?
We’re confirming this detail and will update this answer shortly.
Is the Mas Malo true bypass or buffered?
We’re confirming this detail and will update this answer shortly.
What does ‘Mas Malo’ mean?
It’s Spanish for ‘more bad’ — reflecting the pedal’s more aggressive, fiercer character within the Fulltone range.
Does the Mas Malo sustain well at low volumes?
Yes, it’s built to hold howling, compressed sustain even at relatively low volumes, not just when driven hard.


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