Purple Rain amp settings — Fender Mustang LT25

The Prince guitar tone for “Purple Rain”, dialed in for a Fender Mustang LT25 with a Gibson Les Paul Special. Studio version, Purple Rain soundtrack (1984) — title track recorded live at First Avenue with overdubs at Sunset Sound

Original rig

Mesa/Boogie Mark IIC+ head, Bag End D12-M cabs with JBL D120F speakers, Hohner MadCat (bridge pickup), Boss SD-1, Boss OC-2, Boss BF-2 Flanger, Boss DM-2 Delay

Warm, singing sustain with vocal-like midrange, touch-sensitive gain that cleans up on lighter picking, shimmering chorus/flanger swells on the iconic outro solo

Amp settings — Fender Mustang LT25

CHANNELSelect '70s UK amp model (closest to mid-forward British crunch; the Mustang LT25 lacks a direct Mesa model)

Knob	Setting (0–10)
Gain	5
Bass	4
Mid	7
Treble	6
Reverb	2
Master	6

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Guitar

PICKUPbridge TONE7 VOLUME10

Why these settings

The original Mesa Mark II is aggressively mid-forward with tight low-end — your Mustang LT25's British-voiced model gets closest to that bark. Your Les Paul's humbuckers are hotter and warmer than Prince's single-coil MadCat, so gain drops from 6-7 to 5 and treble stays moderate to avoid mud. Mid pushed to 7 recreates the vocal-like quality of the solo. Without pedals, you lose the SD-1 edge and flanger shimmer — the Mustang's built-in modulation effects can approximate the flanger if available in the menu.

PRO TIPPrince's Purple Rain solo is all about controlled feedback and vibrato — stand close to your amp, let notes bloom into sustain, and use wide finger vibrato rather than fast shallow shakes. Roll your tone knob down to 6-7 during the slow vocal phrases, then open it up for the climactic 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.