Tone library / Underoath / When the Sun Sleeps

When the Sun Sleeps amp settings — Fender Mustang LT25

The Underoath guitar tone for “When the Sun Sleeps”, dialed in for a Fender Mustang LT25 with a Fender Player Stratocaster. Studio version, The Changing of Times (2002)

Original rig

Likely mid-gain tube amp (Marshall/Mesa style), downtuned guitars with humbuckers, minimal effects—early metalcore production before the band's documented later rigs

Aggressive mid-scooped metalcore chug with tight palm mutes, raw high-gain saturation, and cutting upper-mids for screamed vocal sections
Amp settings — Fender Mustang LT25
CHANNELMetal 2000 or high-gain amp model
GAIN 8 BASS 6 MID 4 TREBLE 7 REVERB 0 MASTER 5
KnobSetting (0–10)
Gain8
Bass6
Mid4
Treble7
Reverb0
Master5
Don’t have a Fender Mustang LT25? Match your own rig →
Guitar
PICKUPbridge TONE7 VOLUME10
Why these settings

The LT25's high-gain models approximate the saturated metalcore sound, though single coils lack the thick low-end of the original's humbuckers. Mids are scooped slightly (4) to capture the era's characteristic metalcore scoop, but not fully cut—the song needs mid presence to cut through. Treble at 7 compensates for the Strat's natural brightness being different from humbucker warmth; rolling tone knob to 7 tames ice-pick highs on palm mutes.

PRO TIPTune down to Drop C (CGCFAD) to match the original's heavy low-end—the song's chugging riffs lose their weight in standard tuning, and palm-mute directly over the bridge pickup for maximum tightness.

Get this tone on your amp

These settings are for a Fender Mustang LT25. 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 Fender Mustang LT25
Black Hole SunSoundgardenZiua vrăjitoarelorCargoKing For A DayPierce The VeilBleed Me an OceanAcid BathMaggieFinn wolfhardWhere is my mindThe pixies
Find your amp
Browse
Fender Mustang LT25 settingsALL SONGS FOR THIS AMP Fender Player Stratocaster 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.

Get ToneAdapt — first match free