Quick question, how do you find the SE5 for resolution and detail? I know they don't use acoustic filters so the bores are wide open. Do you perceive a benefit?
SE-5 are thick bass and low mids, smooth, slightly lighter higher mids and reduced (slow rolled) treble of moderate thickness.
Timbre is warmish, but very quick except of bass, which is deliberately slower, giving it a slightly layered feel. Detailing is superb.
The many tiny resonances (4 to be exact: 1750, 2500, tiny 5500, 8000) are only (slightly) audible because the background is so black.
Once they're equalized, I know nothing with this kind of body to it, but out of the box, they're too dark and bass boosted.
Orthos (specifically, HE-5L I've heard) have similar kind of bass presence.