Summary: this is my first review, though these aren't my first good headphones.
Build quality: they are made of mostly plastic, besides the aluminium cups and hinges, but they are still built very well. i like that i am able to replace every part. previous experience with headphones has proved to me that wires usually are the weak point of headphones, and being able to replace all of the wiring, including the wiring that runs through the headband is a very sexy.
Pros: Sound quality, modular design!!!
Cons: not best for all genres, mids are lacking. Dongle attachment instead of inline controls
Summary: Bought this as a factory second for £100 recent for a bit of portable fun. I have been looking at the Amperior for quite a while but I ended up with the DT-770 32ohm, which I did not regret at all. The initial pricing of the Amperior was the major thing that stopped me from buying it.
Pros: Sounds quality if great. Typical Sennheiser sound signature, warm and fluidic. Can be driven with almost everything. Made in Ireland, not China
Cons: Flimsy headband design straight from HD-25. Cables supplied is un-proportionally thin. Initial introductory price a bit expensive for what it is.
Summary: These are not the final word in isolation, but coupled with their ability to play loud and to entertain, they might result in you forgetting that roads are dangerous and normally noisy.
The sound quality itself is great, like its older brother, but the bass can be a little like it's only one note. If you use these outdoors, you'll be shocked at how good they are for a portable, and they may make you reconsider whether IEMs are the best choice.
Long before I heard of Head-fi.org, one of the first headphones I ever bought was the Sennheiser HD 25-1. In 2004 I was on tour as the drummer for the internationally renowned singer Fish (ex-Marillion) and wanted an excellent headphone to enhance my music-listening experience both on and off the stage.
Pros: Audiophile-grade portable headphone with excellent clarity and bass impact; luxurious-yet-rugged and stylish construction
Cons: Clamping pressure may be too much for some listeners; a more open, laid-back sounding headphone may be preferred
Summary: I wasn't really in the market for another set of headphones, but i happened to be in the Apple Store buying a cable and was just having a general look around when I saw the Amperiors. I decided to have a listen and was seriously impressed.
I'm now writing this review after having listened to them for about 12 hours in total.
Summary: Oh, the Amperior - the street-wise sequel to the famed Sennheiser HD 25. They have a very similar sound signature, but the Amperior sports a fuller, more well defined bass and has toned down the sibilant, often unwieldy trebles of its predecessor. The build quality has increased. The style has been bumped up a notch. iDevice controls and mic are now present.
Pros: Accurate and detailed with clean, punchy bass. Funky styling.
Summary: The sound quality is excellent, of course, the sound is very neutral. The passive isolation is excellent, it really puts you in a bubble (don't expect the performances of noice-cancelling headphones, though). It can become a little bit uncomfortable to wear after several hours (I wear glasses), but that's probably the price to pay for a good isolation. They're very robust as well, I don't fear to break them when I carry them in my bag. Only negative point: the price.
Summary: I already had the Hd-25s and when one of the capsules broke, rather than buy a new capsule, decided to give these a bash. Well, they are definitely better than the Hd-25s, that is for sure. But an extra £100 - I really don't see the justification in that. Considering the Hd-25s are £150 on average, I'd say that the Amperiors should be more around the £200 mark. But they are very good headphones - nice warm, deep bass.