I've been to at least a dozen studios that powered 801's with Bryston's, but to each his own. What each of us hear and like is different but I've never heard them described as "sounds like hell".
I have the second iteration of the 801 with the sealed bass unit. They were about $1500- new in the mid 80's. With a 85dB/watt efficency, they required a lot of power. They are also VERY revealing, therefore they require a skilled hand to get them dialed in. Stands, set off walls just so but the effort is worth it.