The Seattle Driver is Vitalii Bobrov’s take on the Boss PW-2 Power Driver, a pedal with a cult following in grunge circles but a fixed EQ that made it awkward in different rigs. The Seattle Driver keeps that raw, grinding character and adds three individually tunable EQ bands plus a blendable analog octave-up, turning a cult curio into something genuinely versatile.
Controls
The top row handles tone shaping. Fat controls bass content centered at 80Hz. Muscle adjusts the midrange at 875Hz. Air handles the top-end presence at 1550Hz. Together they give you real surgical control, not just a single tone knob.
The bottom row handles dynamics and character. Exhaust sets your overall output volume. Vacuum blends in the analog octave-up, from zero to fully dominant. Power drives the gain stage, covering everything from a light push to full saturated grunge.
In the demo above I’ve set up sweeps for Fat, Muscle, Air, Vacuum, and Power, so you can hear exactly what each one does in context. The fixed presets cover four distinct flavors: Fat Distortion (Power maxed, Vacuum low, Fat boosted), Space Needle Cut (Power at 6, Vacuum at 5, Muscle pushed), Scooped Octave (Muscle at zero, Vacuum at 8, Power maxed), and Edgy Drive (Power low at 2, Muscle up, Vacuum off).
How It Sounds
The core distortion voice is grinding and midrangey, closer to a Big Muff than a DS-1 in its density, but with more presence and less of the classic Muff scoop. The Fat Distortion preset makes this clear: maxed Power with Fat boosted produces a saturated, thick sound with real body. The Edgy Drive preset shows the other end of the range, where low Power settings give you a pushing, overdriven tone that works better for riffs than all-out fuzz.
The Vacuum control is what separates this from a straightforward distortion. The Scooped Octave preset (Muscle at zero, Vacuum at 8) makes it obvious: with mids cut and the octave blended high, the pedal sits somewhere between a Big Muff and an octave fuzz, with that compressed, stacked-harmonic quality. The octave is analog, so the blend means you can keep it subtle or push it to the front depending on the moment.
The Space Needle Cut preset (Vacuum at 5, Muscle pushed) lives in between: useful for rhythm playing where you want some octave texture without full-on fuzz commitment.
Seattle Driver vs Drunk Beaver Distortion
The natural sibling comparison is the Drunk Beaver Distortion, which is built around a modernized DS-1 circuit with a switchable Muff gain stage and an 8-way diode selector. Both are Drunk Beaver designs with expanded tonal control, but they start from different places. The Distortion leans on diode-clipping variety and the DS-1’s tight, punchy character. The Seattle Driver starts from the PW-2’s rougher, grungier voice and builds out from there with the 3-band EQ and the octave blend. If you want a distortion that cuts and punches with some classic-rock snap, the Distortion is the one. If you want something heavier, fuzzier, and more capable of that 90s grunge or octave-fuzz zone, the Seattle Driver is the better fit.
Who It’s For
This pedal is aimed at players who want genuine 90s grunge tones, the kind that actually came from Boss PW-2s and Big Muffs rather than a generic high-gain distortion. The 3-band EQ makes it unusually adaptable to different amps and guitars, so it’s also useful for anyone who’s struggled to get a distortion to sit right in a specific rig. The Vacuum control adds a second distinct personality that gets into octave-fuzz territory without requiring a separate pedal.
If your distortion ideal is tight and precise, something closer to a DS-1 or a hard-clipping drive, this isn’t optimized for that. It runs on 9V DC at 30mA with a lifetime warranty from Drunk Beaver.
Specs
Circuit: based on the Boss PW-2 Power Driver, with modifications
Controls: Fat (80Hz bass), Muscle (875Hz mid), Air (1550Hz treble), Exhaust (output level), Vacuum (analog octave-up blend), Power (gain)
Analog octave-up: blendable via Vacuum knob
Power: 9V DC, 30mA, Boss-style negative center (no battery)
No dimensions or weight listed on builder page
Signal Chain
Fender Duo Sonic (single coils) in the bridge position
