JCM800 Tips
Marshall JCM800
Taken from Scott Peterson's thread on the Fractal Audio Systems forum:
I am a JCM800 guy. No matter what I am doing, it's always my base tone in 99.999% of what I do it ends up. :D I came of age in the 80's, it's where I come from. You either had a JCM800, or you played an amp that sounded like one. It was the base tone machine of the day in the music I grew up on. The JCM800 in the Axe-FX has always been go-to; from V3.xx firmware onward for me. Folks seem to like my take on it, so in the spirit of sharing and community I'll detail out my preset that I've completely built back up from scratch with V9.x firmware.
Amp Block:
JCM800 Model Drive: 7.56, Bass: 3.03, Mid: 6.14, Treble: 5.00, Bright: On, Boost: Off Presence: 0.00, Depth: 0.00, Damp: 4.02, Sag: 7.20, Master: 5.00 Warmth: 0.00, Thump: 0.00, Low Cut: 79.0, Trans Match: 5.00, Power Tube Bias: 0.350, Bright Cap: 0.218
Those are the settings that deviate from stock (or are stock); anything not detailed out are default values.
The Cab block:
Mic: None, Drive: 0.00, Air Freq: 3623, Air Mix: 5.1%
I use a mix of Red Wire IR's. The 'tone recipe' is as follows:
BIGBox\48 KHz-24bit\Marshall1960A-G12Ms\Ambient Mics\Marshall1960A-G12Ms-KM84-Room-R.wav,0.20 BIGBox\48 KHz-24bit\Marshall1960A-G12Ms\Ambient Mics\Marshall1960A-G12Ms-KM84-Room-L.wav,0.20 BIGBox\48 KHz-24bit\Marshall1960A-G12Ms\Royer R121\Marshall1960A-G12Ms-R121-Cone-6in.wav,0.40 BIGBox\48 KHz-24bit\Marshall1960A-G12Ms\Ambient Mics\Marshall1960A-G12Ms-D6-BackCab-0in.wav,0.10 Speakerbox\48 KHz-24bit\Celestion-Blue12\Ambient Mics\CelestionBlue12-KM84-Room-L.wav,0.05 Speakerbox\48 KHz-24bit\Celestion-Blue12\Ambient Mics\CelestionBlue12-KM84-Room-R.wav,0.05
Broken down so you can figure that out: Marshall1960A-G12Ms-KM84-Room-R.wav, 20% of mix Marshall1960A-G12Ms-KM84-Room-L.wav, 20% of mix Marshall1960A-G12Ms-R121-Cone-6in.wav, 40% of mix Marshall1960A-G12Ms-D6-BackCab-0in.wav, 10% of mix CelestionBlue12-KM84-Room-L.wav, 5% of mix CelestionBlue12-KM84-Room-R.wav, 5% of mix
