Recently acquired a new Mesa Walkabout Scout. This combo is quite nice in all aspects, however the fan noise is bothersome even at mid settings. Can understand in the din of a club or stage this would not be too much of an issue, but otherwise the fanlets you know it is working. I'm thinking at low volumes it might not be necessary and perhaps to install a on off switch for this. It really sound like a low level hairdryer. It surely is not necessary to be that loud. Anybody ever dealt with a matter such as this?