Just wanted to follow up with this post. I got a new fan shipped from randall, and the tech installed it, and I think did some mojo to the fan to make it even quiter, and now this is VERY quite, can't barely hear the fan running at all, huge change, me happy.
I have read about randall not having good support, but I think something has changed for the better, and wanted to duly note that I have received excellent, fast service! Amp sounds good.