I have an opportunity to get an almost free ($50) SVT7 Pro. It looks new. I looked inside and she's pretty immaculate. Owner said he only had it 8 months or so and has had it un-fixed since 2013 or 2014 (I don't remember exactly.) I checked the revision number on it and it's A00. It's no wonder it blew up. I did my homework searching the problems this amp had. An online retailer has a main board for about $225, version Hxx. IMO, an SVT7 Pro is easily worth $225, but: What's your opinion? Should I be OK with a revision Hxx board or is this amp still a lemon, which is my main concern?