Tone library / Acid bath / Toubabo koomi

Toubabo koomi amp settings — Fender Fender champion 25

The Acid bath guitar tone for “Toubabo koomi”, dialed in for a Fender Fender champion 25 with a Donner Donner DST-80. Studio cut, When the Kite String Pops (1994) — main heavy sludge/death metal rhythm riff

Original rig

Sammy Duet / Mike Sanchez: Gibson SG / Les Paul, Marshall JCM800 2203 / Ampeg VH140C heads, Boss HM-2 Heavy Metal / DOD FX59 Thrash Master, Celestion G12T-75 speakers

Raw, grinding 90s sludge metal with aggressive upper-mid saw-blade bite and tight, chugging low-end
Amp settings — Fender Fender champion 25
CHANNELMetal / Hi-Gain voice (Channel 2)BRIGHToffBOOSToff
GAIN 8 BASS 7 TREBLE 7 REVERB 0 MASTER 4
KnobSetting (0–10)
Gain8
Bass7
Treble7
Reverb0
Master4
Don’t have a Fender Fender champion 25? Match your own rig →
Guitar
PICKUPbridge TONE10 VOLUME10
Signal chain

01Boss HM-2 Heavy Metal

RECOMMENDED — not currently owned; critical to get Sammy Duet's iconic Louisiana sludge grind

Level 8 · Low 9 · High 9 · Dist 7
Why these settings

The Champion 25 utilizes a two-band EQ without a dedicated mid control or presence control, so both are nulled. To capture the buzzsaw grind of Duet's cranked Marshall/Ampeg rigs without pedals, run the amp on the Metal channel with Gain at 8 and Treble pushed to 7 to inject aggressive bite into your bridge humbucker. If you acquire an HM-2 or clone later, dial back amp gain to 2-3 on the Clean channel and let the pedal supply the signature chainsaw filth.

PRO TIPAcid Bath tuned to C# Standard (C# F# B E G# C#) or Drop B for this track; match that heavy down-tuning and strike hard near the bridge with a stiff pick to get the iconic sluggish percussive attack.

Get this tone on your amp

These settings are for a Fender Fender champion 25. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

Get ToneAdapt on Google Play
Find your amp
Browse
Acid bath tonesALL SONGS Tone libraryEVERYTHING

Song, artist and gear names are used to identify the tone being matched; ToneAdapt is not affiliated with or endorsed by the artists or manufacturers mentioned. Settings are AI-generated starting points — trust your ears.

Get ToneAdapt — first match free