Hello, I just got a Beta Lead 2X12 combo. Great so far, one hang up. If gives off a "white-noise" hiss starting at about 4 on the master volume with the channel level about half way up. There's a positive correlation between mid range level & amount of hiss. This noise is prevalent in both channels. The noise isn't obstructive w/ drums and other loud instruments only when amp is on in a quiet setting. Signal still sounds pretty good. Let me know if you need more info. Thanks.
