My sister has been looking for a Kustom bass amp for months now. We finally walked into our local "used" shop, and low and behold, a Kustom! It was a K200 PA head with 2 Kustom 4x10 cabinets. Unfortunately, the clerk discouraged us from buying it upon realizing that we wanted it as a bass amp. So my question is twofold.
First, can damage actually be done to a K200 PA head by running a bass guitar into it?
Second, can anyone suggest a quick fix to improve said amp's REALLY low range (it sort of loses punch around low G on the E string)?