Since the SEHS patch which increased the internal cab sounds in the 395, I find it almost insufferable to play now with that constant drone. Not sure if it is the A/C or engine....but it used to be unnoticable but now it overpowers every other noise and I find it impossible to tolerate for more than 5mins at a time. I cannot recall exactly how it was pre-patch; it was maybe there but not as near as loud. Is this noise realistic to how a 395 cab sounds or is there still an audio mixing issue with this particular unit ?