Marshall JMP 50W Lead with JCM800 Transformers. Does it sound like JMP or JCM800?!
The JMP is a 50W Bass modded to 50W Lead from 1976. The stock 784-139 Output Transformer is changed to a 1989 783-257 OT. The stock 1202-164 Power Transformer is changed to a 1990 PT 1202-304. The guitar is a 2013 Gibson SG Standard CS and the cab is a 1971 Marshall 1982B.