Logitech UE 900 Noise-Isolating Earphones

I loved the sound on these IEMs. Really fantastic. I didn't even have the cutting in and out problem most people did. My problem was that when I tried changing the cord to the one with the microphone, I broke the IEMs. It felt like breaking cheap plastic. I didn't even use all that much force. If you treat them well they'll be worth the cost, but don't expect them to stand up to any amount of abuse.

I've owned and enjoyed the TF10s for several years and was excited when these came out. I scoured review sites like Headfi and others trying to determine whether the UE900s would be worth the upgrade, or whether I should spend bit more on customs (JH16s, 1964s, etc) or Sennheiser IE800s. Most of these reviews highlighted the improved presence/detail in the mid-range, as well as the improved low-end definition. While I can't compare to customs or the IE800s, I believe these are a big upgrade over the TF10s. The in-ear fit is significantly better, and the addition of volume controls for the iPhone is welcome - as is the L-shaped headphone jack. The braided cord also seems to twist less, although it can be prone to tangling when wrapped up. The sound is simply fantastic in my opinion. I hear details and presence in the mid-range instruments & vocals, improved soundstage/separation of instruments, etc. I can now also hear the 'empty space' when a song ends and you hear the faint echo/decay of the notes. The UE900s make beautiful music and I find myself listening to many recordings over again. Two things though about the sound, which has been pointed out in other reviews: 1. The treble doesn't have quite the same 'sparkle' as the TF10s. I raised the upper frequencies on my iPhone/iTunes EQ to compensate 2. I find the vocals almost too upfront - while the TF10s are very recessed (especially after you listen to the UE900s), I feel the UE900s could have backed off just a bit Maybe someday I'll find the perfect universal earphone, but for now I'm enjoying the heck out of the UE900s. Well worth the upgrade

Great, but both of the cables wore out with in a year. Fortunate that third party providers have that covered. Sound truly is great.

Technically, the headphones are first-rate. Sound clarity is great, and they're hypothetically well-designed (over-the-ear; plastic ear guides; detachable cables). That said, the build quality is atrociously poor. I bought a pair Dec 2012; I'm now on my fourth replacement (Oct 2013). Well, I would be except for another issue, described shortly. The issue is that the (two-piece) earpiece cover falls off of the earpiece. Whatever adhesive is used is grossly insufficient in that within a month or two, they come apart. I treat them carefully and it doesn't matter. Secondly, the metal contacts (both the connectors from the cables to the earpieces, and the headphone jack) corrode spontaneously. I bought a spare cable and I was using it within a month because the corrosion occurred so quickly. Finally, Logitech CSRs are not sufficiently motivated and/or empowered to correct these technical issues, mostly through using UPS Ground only to ship, and only after they've received back the defective product. Given I've been through so many replacements, this is unacceptable. I've done executive escalation twice-- the first time I received a replacement UE900 within just a few days. In the fourth instance (with the third defective unit), I've escalated again because they sent me a UE9000, not UE900, as a replacement. My advice: buy Shure or Westone instead. The last Shure IEMs I had lasted over four years. Edit: I've been told by Logitech that they've addressed some of the issues identified in my review; namely, the earpiece coming apart. By using a stronger adhesive, Logitech hopes to correct this problem. I've received a replacement UE900 (which was overnighted) with the new adhesive, and I'll place in this review if I have further problems. Re: corrosion-- there is a liquid that is supposed to be applied once a month to the metal contacts to keep them corrosion-free. I also read this in another review (I can't remember the name). Hopefully that'll clear up the corrosion issue. I'm changing my review rating from One to Three Stars contingent on the problem being fixed. Logitech Corporate took interest in my case and assured me they're eager to improve the product. Plus, I don't like giving One-Star reviews. That said, it shouldn't take escalation to get a properly working product and/or working replacements. Good luck, Logitech. I'm changing my review -again- from three stars to one star. Since the last time I reviewed the IEM's, I've gone through two more pairs. In each case, an earpiece has failed. In the first of the two, the earpiece emitted sound like a blown speaker. In the second, audio began to spontaneously degrade. To reiterate; I don't treat my IEM's harshly, so I don't understand why they (six pairs over a year) fail so readily. As a comparison, I've had a cheap pair of Skullcandy IEMs that have performed, albeit with lower audio quality, without failure. I bought them for $20 at Target.

The sound quality, for using on stage, is pretty lackluster. There's almost no clarity to what you're hearing. They're mediocre headphones at best. I took a risk on these, and it didn't pay off. Would not recommend.

Best earbuds I've ever had period. Good bass and crystal clear mids and highs. It's imperative to make sure you have a 100% seal to get the best sound, but if you take your time and pick the correct tips from the large selection that comes with the earbuds you will be rewarded with awesome sound.

one side cut out as soon as I trydthem but if this happens just take of the monitor and rub the post with the little Velcro wrap that's around the cables. they swivel so you cant put them on with one hand, Iv had the trpl f10s and the cable was so stiff that it bent and then broke right at the monitor canect and fell n was lost, these corrected that with a beter cord plus an extera but I still recamend a good cable up grade with any in ear monitors that have the option. I was not at all happy with the sound but had some foam tips and that made all the difrence. the sound has to chanel into your ears just right to have real good sound so I recamend upgrade foam tips. they realy give much beter sound for some reason

I went through two pairs of these before I gave up...There is major flaws with the connectors, and other people are having issues as well. It makes me a little sad because I was extremely excited about these, but will continue to use my triple 10s until they fix the connector issue. Its unfortunately because they sound amazing in the one ear that worked.

ケーブルが難。速攻shure用のupgradeに取り替える。 本体は10proより耳によくなじむ。 ケーブル抜きでは最高の一品です。

10 Proからの乗り換えです。 ロック全般（特にHR&HM）を良く聴きます。10 pro+luneの音が忘れられずに、こちらもすぐにluneにリケーブルしました。 付属のイヤーピースでの最初の印象ですが、10 Proに比べ、ボーカル、ギターはくもりなく聞こえますが、 ベースとドラムについては、10 Proよりもかなりおとなしい感じです。音場は10 Proのほうが広く感じます。 音の分離や解像度については、こちらが上だと思います。 装着感が良いので、しばらく付属のイヤーピースを使っていましたが、どうしても音が気に入らず（繊細だが、おとなしすぎる） 評判の良かった、ソニーのノイズレスイヤーピース等も試しましたが、ベースの量感はすごく上がったものの、スポンジの吸音効果なのかシンバルやスネアの音の切れが悪く、自分の好みにはあいませんでした。 10 Proで使っていた、モンスターのトリプルフランジも最初に試したのですが、耳から出っ張りすぎるので、すぐに使用をあきらめていたのですが、ふと、おもいついて、先端のフランジ（一番小さいフランジ）の芯の途中でカットしてみました。 これは、正解でした！10 Proと同じ、熱い音が戻ってきました。 スネアやシンバルの切れも素晴らしく、10 Pro同様のタイトでダイナミックなベースに加え、10 Proで足りなかった、ボーカルとギターの充実感・・・ イヤーピースでこんなにも激変したのがちょっと驚きです。 その後、フランジのカット方法をいろいろ試しましたが（根元の芯だけ切る、小さいフランジをすべて切る等）、結局、先端の芯を途中で切った時が一番自分の好みの音で、ここに落ち着きました。 装着感や取り回し等は、みなさん書かれているように、非常に良くなっています。 あと、使用が電車での移動時が主なので、プレーヤーは、iPod-nanoをずっと使っていましたが、UE900に対して役不足物に感じるようになり、WalkmanのSシリーズに変えました。 総評としては、UltimateEarsらしい音がする、いいイヤホンだと思います。 最近、プレーヤーをWALKMAN NW-A16に変えたのですが、おとなしいと思っていたUE900が大化けしました。 うるさくなるギリギリまでボリュームを上げると信じられないようなダイナミックな音を聴かせてくれます。 特に80年代後半以降の録音が非常に素晴らしい鳴り方をします（10 proは、60年代後半から70年代前半の録音が魔法のような素晴らしい音に化けるのですが。） メタリカのアルバムジャスティスが、こんなに素晴らしい録音だったのかと再認識・・・。エクストリームの3サイドストーリーは、スネアの衝撃波のような音（生のスタジオとかライブだと実際こういう音なんですよね）にしびれまくっています。 プレーヤーの実力次第で、実力を発揮するイヤホンだとつくづく思いました。 ケーブルを定番のGalaxy-plus、それからポタアンとして、Fiio E12Aを導入しました。結果、ボリュームを上げても「音の刺さり」なく、ダイナミックさが上がりなかなかの満足度です。１年以上使ってみての感想ですが、なかなか思い通りの音にならない反面、ケーブルや、プレイヤー、アンプに敏感に反応して、音が変化するところが、JBLの70年代のモニタースピーカーに似た趣味性を感じてとても楽しいと思います。このイヤホンは、使いこなしによって、まだまだ隠れたポテンシャルを秘めているような気がします。ちょっと使ってみて思い通りの音にならなくても、じっくり向き合えば「はっと」するような瞬間を何度も提供してくれる素晴らしいアイテムだと思います。

これまでＥＲ−４Ｓを愛用してきました。 ケーブルが断線したので本品に買い換えました。 音質はＥＲ−４ＳやヘッドホンのMDR-CD900STと比較するとかなりこもったモコモコした音になります。 ボーカルの声はヌケが悪いです。 スネアやシンバルの音もキレがわるいです。 ＥＲ−４Ｓが晴天ならこれは曇天といった感じ。 他の方の評価が高かったので私の使い方が悪いのかと思い、イヤーチップをいろいろ変えて試してみましたがヌケの悪さ変わりませんでした。 期待していましたが、ＥＲ−４Ｓになれた耳にはちょっと物足りないです。

イヤホンの左側が聞こえませんでした。 箱も汚かったです。 返品しました。

並行輸入品につき、故障、返品の対応ができないみたいです。 また、説明も日本語がなく、保証書もないです。連絡先も日本にはありません。 値段だけに捉われず、販売元をよく考えて買うべきだったと思いました。