Brillig
100+ Head-Fier
Great impressions, oh Great Sage!VERY different buds. The ES-P2s are laid back, warm, and fairly reserved in the treble. The stage on them is wide and tall and timbre is a little warmer and more lush than what's absolutely accurate. They're also reasonably detailed, but they aren't technical monsters by any means and probably not a go to pair of buds for any critical listening. They're fantastic for jazz, blues/blues rock, and acoustic stuff in particular.
The RW-3000s, on the other hand, are well extended at both ends. The treble isn't sibilant, fatiguing, or harsh (quite the opposite in fact), but it makes it's presence known and contributed to their overall clarity. I find the RW-3000s to be musical with a kiss of warmth, but not near the warmth of the ES-P2s. The bass on the RW-3000s goes low and has good punch and articulation, but doesn't reach the boosted quantity, heft, or weighty presence of the bass on the ES-P2s. The soundstage isn't as wide as the stage on the Ucotechs, but it extends well in all three directions (width, depth, and height) and the timbre is damned near dead on accurate. They're also considerable more resolving than the ES-P2s.
In short, the ES-P2s are a very colored pair of buds that has to be right for the mood and the music and when they are the right pick, they're really something special. The RW-3000s are the consummate all-rounder: natural, balanced, technically proficient, and accurate. They give you back a very exact representation of what you feed them without coloring, boosting, or adding much of anything and they do it as well as just about any pair of buds and better than any pair I have heard for a similar price. Both are fantastic and I love having them in my collection, but they serve completely different purposes for me.
(BTW, I considered numerous other people on this thread great sages also! This is truly a collection of very perceptive and helpful people.)