1. A stock JCM 800 is not a very aggressive amp by todays standards, nor were they ever really meant to be ultra high gain. Where they excel is in dynamics and headroom. But without a "kick in the nuts" they´re actually pretty tame.
2. No, such a pedal does not exist AFAIK, or I´d be using it instead of my head and 4x12 for quieter settings![]()
I seem to recall that Marshall "Jackhammer" pedal reminded me a lot of 800 tone... Not that I ever owned one, and it would have been running through my Marshall...
The guvnor did really well. It get about as close as I have heard in a pedal. The crunch channel on the jackhammer pedal was good as well but I liked the guvnor better.
Any pedal tone and sound Characteristic like jcm800 aggresive?
I seem to recall that Marshall "Jackhammer" pedal reminded me a lot of 800 tone... Not that I ever owned one, and it would have been running through my Marshall...
I would say the Jackhammer, Tonebone Hot British and maybe the SFX-03 can do a bit of it. Close is a matter of taste. So if that exact tone is what you are looking for you need a very loud amp.