Overview Recently at church our bass player’s bass amp, an old Gallien-Krueger 800Rb, started going haywire in the middle of service with a loud hum. The bass player had been away for close to a year leaving his equipment on stage untouched during that time. The last time he used it there were no issues, … Continue reading Gallien-Krueger 800RB Bass Amp Repair (Noisy Crossover)