So to put the smart aleck comment aside, that signature marshal top end bite (AKA "Kerrang") is definitely a combination of the preamp and power amp section, but with the right module you can get close. Try a lower gain setting with the EG5. It gets pretty close IMO. The SL is a great module for this too, but it doesn't seem to have the nasty attitude for that kind of sound, which is why I say EG5. With the gain around 9:00 and the tone controls around noon, put the bright switch on 1 or 2 depending on your cabinet, and that should put you well on your way. I like to sometimes set the EG5 up with just enough gain to not be hairy, but lots of high end. Overall a great sound.