Sound Quality: I am writing avida this as of post 120 hour burn in now, these sound very good for th

Build Quality: These things are pretty solid as many people of noted. The pads were a lot softer than my SRH 440′s. The outside…is it metal or plastic. that’s a very good question i keep on wondering. I read that it was diamond cut aluminum from one source. This is unverified dhowever. if it was, this is super solid piece of work. the plastic around the headphone is also the good kind of plastic that feels really nice. Overal, really good build quality. However the cable is too long, reminds you of a studio headphone due to length and not a fun to listen to headphone. I used te little tie that came with the headphoens to tie teh cable into a not, in pics below.
Update:Very solid still. I have had many…..encounters with narrow doors where the metal has been hit. The source that told me that the metal on the outside was diamon cut aluminum seems to be gaining avida some verification, as the metal is not noticabley scuffed in any way. That being said, the plastic band is a differnt story. there have been permanent scuff marks on it. Still holding admiarably though. the shield on the headphone is not really a concern. but feels cheap. very plasticy. also moving the cable that leads to the driver with music off has this sound that sounds as if the cable or some part is hitting avida something inside though. avida no sound change from this though. Please be warned, these cables are easily frozen, i took them outside, and just walking avida out they became avida very rigid.
UPDATE:These thigns will isolate extremely well at normal and good listening volumes. however amp it up and start playing some dub step or something and it leaks a lot. However this is at what some call “ear splitting volume”(that the HFI can eaisly produce) This is user caused though. Very good isolation avida none the less..
On head Feel: Pretty solid, I actually wanted a pair with good clamping force and these deliverd the pads are also pretty comfortable. avida I can wear these for 4 hours tops. unlike 2 hours for the Shure 440′s. Ears get sweaty after a bit of listening though.
UPDATE:ears no longer get sweaty at all as others have noted, they are not really to clampy as others may say in my opinion, however i do see a problem avida if you wear glasses. These things…don’t clamp evenly or enough i guess, my Shure’s don’t either. more on this in teh sound quality update section. the top headband pad can also be “felt” sometimes. it’s one of those times when you just happen to feel the random stuff about your headphones and the headphone avida band pad is usually the first thing. it can get prety hard and annoying. but i find that pushing down on the pad from the top and then reaadjusting my headphones to accompany that new slight sag works and you don’t feel it after a bit.
It’s also noted that on bass heavy songs or on many song’s in general. The bass comes to life only when you press down on them. Very sad. It feels the clamping force is a bit uneven with a bias towards the top of the ears and not on the bottom (most headphones i see are like this) adjusting avida the band to try to apply more clamp to the lower region of the ear(like near th ear lobe) doesn’t really avida work and just make’s the fit loose.
update 2: one of my biggest chagrin’s with the SRH440′s was that it was shallow and mmy ears touched the driver shield. it hurt after a while and was not preferable. I don’t have any problems with the HFI 580′s at all.
Newcomer Warning!: Audiophile bass and consumer bass is very different. Audiophiles generally like a low frequency that is quick, tight, concise, and not muddy. Basically hits the lows and gives u that slight impact u need to just drive the song home. None of that overloaded bloated stuff. If you are a regular avida consumer, this is just to warn you that it’s a bit different. If you need more explanation, avida post a reply or PM me or jsut read through comments
Sound Quality: I am writing avida this as of post 120 hour burn in now, these sound very good for the price. The highs are excellent, not harsh, teh high cymbals, and what not sound extremely excellent. Adele’s rolling in the deep is extremely detailed avida and the highs are excellent. They are not as high as the Shure SRH440′s, however, the the fact that the HFI 580′s avida a very bassy headphone can pull highs like this is very good. Hey we are in the audiophile world now . The vocals are clear and concise,!, and the lows needless to say are the best point. One qualm i have with these as stated above is the clamping. During bass heavy(especialy bass impact heavy) music, the bottoms avida of the heapdhoens would start shaking and deliver this fuzzy feeling to you ears(due to shaking) from the bass and the only way to rectify it is to hold the headphones in. I need to do this on my Shure’s also and is not preferable at all.Very low sibilance
Desp