At my last gig I was getting a loud buzz when using the XLR to board. Amp to 2x10 by itself sounded fine. To troubleshoot I tried different cables, channels, power outlets so I'm assuming the XLR output is done for. Is it worth getting fixed on such an inexpensive amp or just use a separate DI? I'm also considering a pedal solution like an Ampeg SCR-DI, Sansamp or similar. I'm not a pedal guy so this would be very new and different for me. Thanks in advance.