Are loud fans a "thing" with this amp? I haven't read back through the entire thread yet but I just took delivery of the BB800 yesterday and noticed that the fan starts pumping pretty good as soon as I turn the amp on. It's not a big issue and I doubt it would be noticeable in a rehearsal setting let alone at a gig. I'm just curious if this is common or if it's my unit in particular. I only had a chance to play through it for about 30 minutes or so but first impressions are extremely positive regarding the sound and punch of this amp.