I've previously owned C2's and C4's but prefer the Harbeth M-40.1's to both by a wide margin... not even close IME. I've also owned the original SHL5's and prefer them to the C2, but not the C4. Haven't heard the C1, but I'd be surprised if I'd find them better than Harbeth given my experience with the Dyn. Confidence line. I agree with Ryder's description of the Dyn. Confidence sound... but I didn't find the original SHL5's to sound warm, but do agree they are more natural sounding than Dyn's.
