1. 64 Audio U12tEarly days for me but it's a stunningly beautiful pairup. I haven't heard the 21 Anni since I owned it last year and from memory the 23 seems to fix what was the only real issue with that IEM-- the bass. Previously it was what I would call "minimally acceptable" but here it's something of a highlight. Tighter, better extended, more present. Annihilator doesn't "need" lots of power but it sure does benefit from it. Trhough the RS8 on high gain/turbo it makes for a hell of an experience. RS8 has a really natural, analogue, authoritative yet liquid tonality that suits this IEM like a charm.
In other news we're two weeks into fall and two days past CanJam SoCal-- it's time for our seasonal 3 IEMs that own your heart at this moment poll. I'm not looking for your all time favorite 3 or anything (though of course you can submit those if you want). This poll is more meant to take the temp of the Watercooler at this moment in time.
Go!
2. Sennheiser IE600
3. Sennheiser IE900
But that's really based on my current mood here at 9:37pm MDT on this particular day. Prolly different in 20-30 minutes