Hello all, I'm new to posting on Head-fi. I recently bought the K701, serial # 84k range, and they are mostly broken in, as the metallic highs have faded almost completely. I am running them through an O2 and ODAC playing ALAC files from my macbook pro and I am very happy with the way they sound.
However, I have been struggling with listening fatigue with the K701 for quite a while now. I assumed it was originally something to do with the metallic sound up top, but the problems continue to persist after that has faded (they have about 250-300 hours on them now so they are pretty far from "new out of the box"). I am a bit reluctant to EQ them on my macbook as it seems like I can occasionally hear a tiny bit of detail being sucked out of the sound when I call the computer's preamp into the mix, which the EQ cannot be used without. I am having fatigue listening at volumes as low as or lower than 65dB in as little as 40 minutes, so I doubt this is related to listening to loud music for prolonged periods of time. To be precise, most of the fatigue seems to be associated with drums, mainly a full-bodied bass drum sound. I have Grado Sr225i's and experience fatigue with them only after much longer listening sessions and at higher volumes. However, I prefer the K701 over them in literally every other way.
Should I try using the macbook's EQ at least to see if I can identify a "trouble spot" in the frequency response for me? I'm open to trying some different equipment, but I want it to 1. produce as uncolored of a sound as possible and 2. cannot cost more than my current setup as it is already at the top end of my budget. Any ideas? Has anyone else looking for this type of sound with this problem found a way to achieve a nearly identical sound while ridding the fatigue issues? And additionally, is the "lack of detail" just something I am perceiving but isn't really there? I'm sure the macbook's preamp does not have SNRs nearly as good as the o2 and odac, but will that make a difference?
Edited by clarinet5000 - 3/13/13 at 6:27pm