I would recommend auditioning a pair of ESL speakers - whether by Quad or by Martin Logan. You'll get those highs. However, given the hybrid nature of their speakers, I wouldn't expect the same level of bass clarity (there's one driver that provides low-end to mids, and of course it can't do it justice). Unless, of course, you spent $20k on a pair of their CLX :). I understand, however, that Magnetic Planars will do the same through the spectrum. I haven't heard a pair, so I can't say for sure.