I use both a solid state and tube Amp on them. I prefer tubes. They don’t seem hard to drive, but I use big heavy, powerful amplifiers with TONS of current. I really like the B&W used market, and so do a lot of people. They’re EXTREMELY popular speakers, and they tend not to last if priced well.
B&W’s use a rubber and not foam surround to their speakers.
A few times I mention the wrong B&W model number for the statement I made. (ex. 802,804,604, etc)
Moved these Matrix 804s to the surrounds and am using the Matrix 802 80’s as the mains. Absolutely love them. More to come in the future!