big jilm
New member
Hey, y'all - bought a used TM combo, and I love the overall tone, but the low end is kinda loose and flubby. I have heard there is a mod, and a way to look at the serial number to find out if the amp was built before the mod became standard. Where is the serial number on the combo? What is the mod, how do I get it, and is it difficult to do? Can I get a local tech to do it for me? Like I said, I really like the overall tone of the amp, but the looseness on the low end is bothersome to me. Anyone have the mod? I appreciate the help!