Tone library / Prince / Purple rain

Purple rain amp settings — Boss Katana 50 MkII

The Prince guitar tone for “Purple rain”, dialed in for a Boss Katana 50 MkII with a Yamaha Pacifica 112V. Studio album/First Avenue recording (1984), iconic outro lead solo

Original rig

Hohner MadCat Telecaster / Stratocaster into Boss SD-1, Boss DS-1, Boss BF-2 Flanger, Boss DM-2 Delay, Mesa/Boogie Mark II into Bag End D12-M cab

Saturated, singing 80s lead distortion with mid-range bloom, mild modulation, and ambient delay/reverb
Amp settings — Boss Katana 50 MkII
CHANNELLead amp type (Variation ON)BOOSTon
GAIN 7 BASS 5 MID 7 TREBLE 6 REVERB 5 MASTER 6
KnobSetting (0–10)
Gain7
Bass5
Mid7
Treble6
Reverb5
Master6
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Guitar
PICKUPbridge TONE8 VOLUME10
Signal chain

01Jim Dunlop Cry Baby GCB95

Leave bypassed for the main outro solo, or rock heel-down slowly for specific vocal filter sweeps

02Boss Katana Onboard Booster (Blues Drive / Warm OD)

Tightens the low end and adds front-end push into the Lead channel

Drive 4 · Tone 5 · Bottom 5 · Effect Level 7

03Boss Katana Onboard Flanger (BF-2 style)

Subtle metallic swirl in the Katana FX section mimicking Prince's BF-2

Rate 3 · Depth 4 · Resonance 3 · Manual 5

04Boss Katana Onboard Analog Delay (DM-2 style)

Warm analog delay repeats to give the solo its soaring spatial depth

Time 4 · Feedback 4 · Effect Level 4
Why these settings

The Katana 50 MkII Lead voice captures the liquid sustain of Prince's Mesa Mark II cascading preamp. Since you do not own separate overdrive and modulation pedals, the Katana's internal Blues Drive booster, Flanger, and Analog Delay blocks replicate the original SD-1, BF-2, and DM-2 chain. Mids are boosted to 7 to recreate the thick vocal cut from the Pacifica's bridge humbucker while the tone knob is pulled slightly to 8 to tame excess top-end bite. Intro rhythm switch: select the Clean amp type and use the neck+middle single-coil split.

PRO TIPPrince leaned heavily into wide, expressive finger vibrato with a loose wrist to make sustained single notes bloom and feed back smoothly.

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