Left Behind amp settings — Mesa Boogie Triple Rectifier

The Slipknot guitar tone for “Left Behind”, dialed in for a Mesa Boogie Triple Rectifier with a Schecter Damien Platinum 6. Studio version, Iowa (2001)

Original rig

Mesa Boogie Dual Rectifier, Ibanez M2M with EMG pickups (Mick Thomson), Fender Jim Root Jazzmaster with EMG pickups through Orange Rockerverb (Jim Root), Maxon OD820 as boost

Crushing high-gain metal with tight low-end, aggressive midrange grind, and razor-sharp pick attack in drop B tuning

Amp settings — Mesa Boogie Triple Rectifier

CHANNELChannel 3 ModernBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	7
Bass	5
Mid	6
Treble	7
Presence	6
Reverb	0
Master	4

Don’t have a Mesa Boogie Triple Rectifier? See this song on other amps → Match your own rig →

Guitar

PICKUPbridge TONE10 VOLUME10

Why these settings

Your Triple Rectifier is the bigger sibling of the Dual Rec used on Iowa — same voicing DNA, so translation is nearly 1:1. Channel 3 Modern gives you the tight, saturated aggression of the original. Gain at 7 is sufficient; the Rectifier saturates early and pushing beyond 7 gets mushy. Mids at 6 keep the grind without disappearing in a mix — Iowa is NOT a scooped tone despite the genre.

PRO TIPMick runs a Maxon OD820 as a clean boost in front to tighten the low-end and add pick articulation — if you add a Tube Screamer style pedal later, set Drive at 0-1, Level at 7, Tone at 5-6 and keep these amp settings; it transforms the attack.

Get this tone on your amp

These settings are for a Mesa Boogie Triple Rectifier. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

Get ToneAdapt on Google Play

More tones for the Mesa Boogie Triple Rectifier

Wherever I May RoamMetallica Bat CountryAvenged Sevenfold The End of HeartacheKillswitch Engage

Find your amp

Browse

Mesa Boogie Triple Rectifier settingsALL SONGS FOR THIS AMP Left Behind on other ampsSAME SONG, YOUR AMP Slipknot tonesALL SONGS Schecter Damien Platinum 6 tonesSAME GUITAR 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.