What's the best mid-range driver available?

Agree with most here. ATC dome, also Skaaning (Verity Audio), Eton 5" is damn good, Accuton (Partner/Thiel) concave ceramic dome (in Avalon and LumenWhite) as well, Focal 'W' sandwich drivers are nice and fast, and finally, the ScanSpeaks (new[er] 5" revelator and believe it or not, their [older] 5" paper cone with rubber surround mid is very nice. Relatively cheap too.

Regards,
JBVO - Ha!

oops - forgot one or two.. dynaudio esotar mid dome.., and the seas magnesium cone 4-5".

application is the key... duh

JBVO - out

Atc may make the "best" mid/driver..but can't buy it separately and way too expensive speakers. So now they are ruled out our 2 contenders are Skaaning 4 or 5 inch( 80hz-2500hz) and the Seas W12CY or W15CY (80hz-3500hz). And i wonder just HOW much better the Atc's are than the Skaan's and Seas's????? Heck the Raven 3 offers a 1.5Khz up(best xover at 2K) range and so is a much better driver than the Atc as far as presenting a seamless mid/tweet..and we also need to consider the Philips RSQ8P/11 and ESg3 both deliver a upper midrange of 1.5Khz up(best xover at 2K)

yes you *can* buy it seperatley. and you can buy the speakers as a kit. they aren't as good, but they're still good.

and they're not too expensive, especially when you consider that they come with multiple top-notch amps as well. if you work it all out, they are really quite a bargain.

15k for a three-way speaker, with the best mid-range in the world, a 50 liter enclosure, one of the best crossover networks available, and *six* seperate power amplifiers driving each driver individually. not cheap, but very reasonable.