Knocking on heaven's door amp settings — NUX MG-300
The Gun's 'N Roses guitar tone for “Knocking on heaven's door”, dialed in for a NUX MG-300 with a Cort x 100 2019 model. Studio version, Use Your Illusion II (1991) — iconic lead solo tone
1958 Gibson Explorer / 1987 Les Paul Standard (Seymour Duncan Alnico II Pro neck pickup) into Marshall Silver Jubilee 2555 / JCM800 2203 with studio plate reverb and subtle tape delay
| Knob | Setting (0–10) |
|---|---|
| Gain | 7 |
| Bass | 6 |
| Mid | 7 |
| Treble | 5 |
| Presence | 4 |
| Reverb | 3 |
| Master | 7 |
01NUX MG-300 Delay Block (Analog Delay)
Placed after amp/cab model for subtle studio echo ambience
02NUX MG-300 Reverb Block (Plate Reverb)
Post-amp block to recreate the 90s studio plate reverb
The Cort X100's ceramic Powersound humbuckers are brighter and hotter than Slash's Alnico II Pro pickups, so rolling the guitar tone knob down to 4 is crucial to get that signature round 'woman tone'. On the MG-300's Brit 800 model, mids are pushed to 7 with presence capped at 4 to deliver sustained singing leads without ceramic top-end fizz. Clean intro: switch to bridge+middle split with guitar volume at 7 and delay off.
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These settings are for a NUX MG-300. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.
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