I recently picked up a brand spankin' new BJRIII. However, I've had the amp for two days now and already I've noticed that the reverb will cut out entirely, randomly, and then back in while I play. This is very noticeable. Additionally, I can hear a distinct static-type sound that accompanies the reverb fading in and out. I practice quite a bit at home - within an apartment complex - and thus I have an attenuator hooked up to it. I've disconnected it and tried the amp naturally and the issue remains. I have also hooked various guitars into it with no results. I have little to no experience with tube amp electronics, any insight would be much appreciated.