Sorry but the other guy doesn't know what he's talking about the RF series is the same as the current RP series. The rf-82s have a titanium tweeter copper 8 in woofers just the same as the rp8000s. And that goes for the same for the newer RF-82 Mark II. I think there's a small difference in the technology with the rf-82 to the rf-82 Mark II. But I've seen no difference in the rf-82 mark 2 versus the RP 8000. If you can find an rf-82 Mark 2 for a thousand bucks or even $900 it's probably a good buy. And if you can find the rf-82 for $700 I'd purchase that too.