This is weird: this one amp model, out of the Mesa/Boogie 2 collection, seems to produce this really weird, warbling noise out of all three channels. It's most noticeable in the clean channel, and you can't gate it out unless you put a gate after the AmpliTube plugin on the channel strip. It's definitely out of the Mk V model, because it disappears if you disable the AmpliTube plugin, and it disappears if you switch to another model, like the Cali Tweed or Triple Crown.
Anyone else notice this?