Definitive Technology BP 30

i've heard the powered version of the definitive speakers and they're fine, but relatively low on the audio foodchain--you see 'em used for a few hundred bucks. your yamaha otoh is a very well-regarded, $4k amp which i'd expect would really shine with better speakers-- i'd look at some of the highly touted brands that @soix suggests. 

Cornwall IIs for 400.00 is a steal. I have owned them in the past as well as Def. Tech speakers (BP 2000) and to my ears the CW is the superior speaker for music. Home theater might tip the scales the other way slightly.

Buy the cornwalls and recap them. Even if you don’t keep them, you can probably flip them for at least a grand, if in good shape.

I know this is an old thred but I forgot to mention that I have the Definitive Technology Powerfield 1500 subwoofer with the BP 30s that are actually a little bright, but the sub really helps out. I also have the Bluesound Node Icon coming  for Christmas. Not a lot of money to spend on much better. Love my Yamaha AS2200 

Found this on the internet 

) The tweeter and woofers are both Definitive in the BP30 - the BP20 used a Vifa soft dome tweeter and a Vifa midbass which is now made by Scanspeak... I would say both of the Definitive drivers are a step up in alot of regards....

2) The port on the BP20 is just a regular port

3) The port on the BP30 is a quasi transmission line where they recess it in the cabinet with an oval cutout about 3 times the size of the port exit diameter, thus causing it to load like a transmission line thus increasing bass by about 3-4db in the low end... and allowing it to dig a few octaves deeper.

4) The cabinet on the BP30 is built far superior and there is a solid board that spans the inside of the cabinet separating the inside and outside woofers from each other where this is not the case in the BP20

The BP30 is a rightful heir to the throne that was the BP20 - the original BP line was when Definitive was just getting started and you can tell they did not have near the resources as they did later on.

Also the crossovers are far superior in the "B" line the BP30 was associated with.

Hope this helps