Most improved last 10yrs: Speaker, amp, or pre?


Where would you say are the biggest improvements in the last 10 years between speakers, amps or preamps ?

I'm leaving digital out of the debate, as the answer would be obvious.
sonicbeauty
Foster9, I put the components together merely out of curiosity. They were meant for different rigs, but I can't pass up an experiment in system building. The results were far beyond expectations. Last night I switched the power cables on the VAC Royal Power Supplies powering the Kingsound King speakers, and got a bit more out of the speakers.

It's a perfect case of "Don't judge the system by appearance." You know Susan Boyle? People mocked until she opened her mouth to sing. This rig is similar. You'd never expect what it sounds like. It would actually be not recommended if not for the unique combination of gear.
Probably tweaks - in the last ten years, they have made huge leaps. If not in sound quality, then at least in chutzpah.