Originally Posted by grizzlybeast
Sounds good and in concept it makes sense. I used to believe the same thing until I tried a bunch, But unfortunately the only fully over ear hp I have used to beat the on ears I have tried in isolation is the German maestro.
Even the perfect seal of the 7520 leaked and let noise in(could have been the bass port but the vents on the fostex t50 leak less)
The beyer on ears dt1350's and senn hd25's(usually used by Djs as the num one set) and amperiors , even the on ear momentum, and pioneer hdj500, the spider powerforces have exceptional isolation.
Actually I have yet to try one that doesn't .
Tend to agree here. I ended up returning my K545's as the isolation just wasn't very good (especially when outside). I used to think that around ears HAD to be better at isolating but that has turned out to be incorrect for me. After having a lot of headphones in the past couple of months my go to headphones for outside walking around are the Amperiors. Best isolation of any that I've had or have which includes DT770, Momentum, K545, K551, K550, esw9, Shure SRH940, Audio Technica M50's (well actually these isolated pretty well, but didn't like the sound of them), Crossfade LP and Audio Technica A900x.
This isn't a thread about the Amperiors but I was searching for a portable set of headphones that sounded good and initially the Amperiors had a bit of piercing high end and sibilance and loose bass. I've never believed in burn in, but I've burned them in using pink noise and sweeps for about 20 hours and the sound has changed quite a bit..high end is much more smooth. I don't believe it's my ears adjusting because I'm using 4 other sets of headphones daily that all sound different so I'm not getting 'used' to the Amperiors (I don't believe so but who knows). I actually believe the sound has changed with burn in. Comfort on the Amperiors I would rate as very good and I wear glasses with them too! They actually sit on my ears below the arms of my glasses, which no around ear can do. I wear them for about 3 hours at a time with no real comfort issues.
Regarding the K545, I like the sound ok and have to say comfort was very good but the sound was nothing that blew me away. I preferred the K551 over them a lot. The 545 also broke seal more easily than the 551's because I wear glasses and the pads on the 545 are thinner.
My recent A900x's and esw9's have been a revelation. I prefer the A900x over any of the 3 AKG's (550,551,545) as the sound stage is quite a bit larger and instruments move around in a 3d space much more smoothly, especially during busy passages of music. To try to describe this better, the AKG seemed to have Left, Middle and Right and not much in between. The A900x has Far Left, Middle Left, Left Center, Middle, Right Center, Middle Right, Far Right AND a lot more depth in front of and behind my head. I'm surprised people don't buy this headphone more..but we all hear differently!
The esw9 is a completely different beast. This is the most fun headphone I've listened to. I guess I would call it musical. I know it's not accurate but it's not boomy and muddy (well maybe a little) and the music just sings. On the down side, comfort is so so and isolation is poor..:( Build quality is weak IMHO as well...but that sound! It's beautiful..:) I will probably return it as I can't justify it since I'll be using the Amperior's when out and about and my Sony MA900's (open) and the A900x's (closed) at home. I will very much miss the esw9 though and part of me thinks I should just hang on to it as I do feel it's a very special headphone.
Final note, on build though AKG beats the Audio Technica stuff easily.