The Black ARts Toneworks LSTR is their louder, wilder take on the Big Muff Pi formula – it’s the Pharaoh‘s more unruly sibling, built for fat, scooped fuzz that still has enough range to cover wide-open, cutting tones too.
Key Features
- Big Muff Pi style fuzz circuit, from the same BMP family as the Pharaoh
- Scoop control for dialling in the midrange, from traditional scooped Muff tone to wider, more open voicings
- Lightly filtered input, usable for bass as well as guitar
- True bypass
- Standard 9V DC power
Louder and Wilder Than the Pharaoh
Where the Pharaoh is Black Arts’ more measured Muff-style fuzz, the LSTR turns everything up.
It’s tuned for singing solos and scooped low-mid tones that suit heavier styles
However, the Scoop control gives you real flexibility. Point the tone controls toward each other for the classic scooped Muff sound, or away from each other to open things up into wider.
Because the input isn’t heavily filtered, it also works well on bass, not just guitar.
Controls
- Fuzz: sets the amount of fuzz
- Volume: sets the output level
- Tone: shapes the overall voicing
- Scoop: dials in the midrange, from scooped to wide open
Power
Runs on a standard 9V DC supply. Current draw isn’t published, but as a simple analogue fuzz circuit it’s low.
Who Is This For
Worth a look if you want a genuinely loud, aggressive Muff-style fuzz with more range than a single-voice pedal. Suits doom, stoner, and heavier rock styles particularly well, on guitar or bass.
Watch The Black Arts Toneworks LSTR In Action
FAQs
It’s a Big Muff Pi style fuzz, louder and more aggressive than the Pharaoh, capable of both traditional scooped Muff tones and wider, more open voicings via the Scoop control.
A standard 9V DC supply. Current draw is low, typical of a simple analogue fuzz circuit.
True bypass.
Yes, the input isn’t heavily filtered, so it works well on bass as well as guitar.
The LSTR is louder and more aggressive andtuned for fat, scooped low-mid tones.


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