Tone library / Mountain / Mississippi queen

Mississippi queen amp settings — Fender Mustang LT25

The Mountain guitar tone for “Mississippi queen”, dialed in for a Fender Mustang LT25 with a Epiphone Les Paul Classic. Studio version, Climbing! (1970)

Original rig

Gibson Les Paul TV Junior (single dogear P90) into a 50-watt Marshall head through a Sunn 4x12 cabinet

Fat, warm crunch with thick low-mids and singing sustain — not scooped, not fizzy, just big and round

Amp settings — Fender Mustang LT25

CHANNEL70S ROCK amp model

Knob	Setting (0–10)
Gain	8
Bass	7
Mid	8
Treble	5
Master	5

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Guitar

PICKUPbridge TONE7 VOLUME10

Signal chain

01MYTH DRIVE

Onboard stomp block before the amp model; pushes the front end into singing harmonic sustain

Gain 3 · Tone 5 · Level 7

02SMALL ROOM

Onboard REV slot to emulate the ambient room reflections of the studio tracking session

Level 2 · Decay 3

Why these settings

The '70S ROCK' model captures the cranked non-master Marshall Leslie West ran wide open. To compensate for your Epiphone humbuckers lacking the raw, open midrange bite of West's original dogear P90, the amp mids are pushed to 8 with treble backed down to 5 to avoid fizzy modern brightness. Rolling the guitar's tone knob down to 7 warms up the bridge humbucker, recreating West's signature woman-tone-adjacent thickness. Middle has no knob on the LT25: press the encoder to open the preset, press it again on the amp model, then select MIDDLE on the display and turn the encoder.

PRO TIPLeslie West got his massive, singing sustain by attacking the strings aggressively near the bridge pickup while using heavy vibrato; roll your bridge tone pot down to around 7 to shave off harsh transients while digging into wide string bends.

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.

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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.