Wiktionary
overamped
a. 1 (context informal English) Very excited, especially as a result of ingesting amphetamines 2 (context music English) Excessively amplified; very loud and distorted
Usage examples of "overamped".
The noise hit me like a power hammer: thumping atonal music blasting away against wildly overamped screeching from some androgynous singer wailing the latest pop hit.