I bought a Hartke 5210c Combo last October. It has been awesome. I even added an HX115 cab to it. Last night I turned it on, let it warm up, and started playing. I noticed a static like noise coming from one of the 10s (although it could be from both). The same static/hissing/fuzz came out of the 15 when connected only to it. Here's the rundown to make it easier to read: - Volume at 9 O'clock - Put everything else to 12 O'clock - Unplugged the 10s and ran straight to the 15 and vice versa - Changed cable (tried 3 different ones) - Changed basses (tried 2 passive, one active) - Tried changing tweeter switch in back and Brite switch in front - Limiter is always on - Tried both outputs on the back as well - Air cleaner for fan always clean - Fan works - Absolutely NOTHING different in my playing or gear used - Everything is plugged into a Monster surge protector This started up out of the blue. I have an Ampeg SVT210AV being delivered today. Would it be safe to try it through that at low volume to see if it's still doing the same thing?