Hmm, I'll be honest, It's been so long since I've heard the Lyr. It was powerful, dynamic, punchy, and syrupy. Not super good when it comes to detail extraction, and more natural sounding.
The Theorem is the portable king of detail extraction (it rivals $2K DAC's when it comes to detail extraction), has amazing coherency across the entire spectrum, and is extremely neutral.
I listen to a lot of scores (James Newton Howard, John Powell), classical music, Jazz, and a bit of drum & bass.
Edited by Austin Morrow - 11/29/13 at 10:11pm