B&W PM1

I heard the B&W PM1's yesterday. I was blown away by their sound. Really good. Smooth, clear, detailed, wide soundstage, and amazing bass for a small speaker. We all thought there was a sub on, but there was none. They were hooked up to simple Rotel electronics. An RA-05SE integrated amp and a 06SE CD player. About $500 each only. I am trying to imagine the sound quality with better electronics.
Just curious if anyone else here has listened to them yet and what your impressions are? I am thinking of buying a pair. Also, anyone know where they are made? Still in England or in China now? Any good advice on matching integrated/amp for them? Thanks.