Tone library / System Of A Down / Toxicity

Toxicity amp settings — Fender Blues Junior IV

The System Of A Down guitar tone for “Toxicity”, dialed in for a Fender Blues Junior IV with a Longa Stratocaster. Studio version, Toxicity album (2001)

Original rig

Mesa/Boogie Triple Rectifier + Marshall JCM800 blend, Gibson SG/Jackson RR with humbuckers, Boss MT-2 Metal Zone, Drop C tuning

Scooped aggressive chug with tight low end and cutting high-mid bite

Amp settings — Fender Blues Junior IV

BRIGHToff

Knob	Setting (0–10)
Gain	3
Bass	4
Mid	6
Treble	5
Reverb	0
Master	6

Don’t have a Fender Blues Junior IV? See this song on other amps → Match your own rig →

Guitar

PICKUPbridge TONE8 VOLUME10

Signal chain

01Boss MT-2 Metal Zone

RECOMMENDED — not currently owned. This pedal is essential for the scooped metal tone; the Blues Junior cannot produce this gain character alone. A Boss DS-1 or TC Electronic Dark Matter are budget alternatives but won't nail the exact scoop.

Level 7 · Low 6 · High 5 · Mid 3 · Mid Freq 4 · Dist 8

Why these settings

The Blues Junior is a clean-platform Fender with no high-gain channel—it physically cannot produce Rectifier saturation. Amp gain is set to 3 (edge of breakup) to serve as a clean pedal platform; the MT-2 provides all distortion. Mid is pushed to 6 to compensate for Fender's natural mid-scoop and the Strat's thinner single-coil output vs the original humbuckers.

PRO TIPYour Strat's single coils will sound thinner and brighter than the original humbuckers—roll the tone knob to 8 and pick closer to the neck to fatten the attack; consider a hot rail or humbucker-in-single-coil-slot pickup if you chase this tone often.

Get this tone on your amp

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

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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.