Summary: I'm impressed by these headphones and I've only had them for a short time. I feel they are worth the money spent, quality construction as well.
Pros: Very fast shipping to an APO address, they only took 6 days to get from VA to Okinawa! Clean sound. I'm hearing things in songs that I haven't heard before! Great sound, cranked up a bit, and my wife sitting a few feet away from me ( in our home office) can't hear anything I'm listening to. I love how these cans cover my ears completely too. It's great they come with a 1/8" to 1/4" adapter in case one wants to plug them into your A/V receiver for movies or music.
Cons: Seem a bit big, but not really a con as I don't plan on travelling with them. Not that much bass, but I didn't want headphones overpowered by bass. Long cord, but it's easily secured with a twist tie.
I got these headphones around Christmas time in 2012. I loved the design at first sight, I find it understated and classy where others find it hulking and ugly, it's all a matter of opinion. After the excitement of unboxing them and plugging them straight into my phone I was horrified by how quiet, lifeless and lacking of detail they were. But rest assured this first impression didn't last long.
Pros: Great detail especially in the treble, Well defined bass, Outstanding soundstage, Extremely comfortable, Built like a tank
Cons: Treble can be harsh at louder listening, Not enough bass for bassheads (Not a con for many)
Summary: I have been using AKG K550 for past few weeks and enjoying them pretty well. This is my first foray into mid fi and I think its a solid contender for getting into mid fi sound especially as it has very low barrier for entry (whole setup). I am driving it with Audinst hud mini, entry level dac/amp and it drives it with authority and good clarity.
I have been using Sennheiser HD518 extensively, and have auditioned HD595 as well as HD650 before this.
Summary: Excelllent headphones, coming after ss 9h headset, senn's 429 558 598 and i love these most, i differentiate details better in vocals now, i can say if vocalist is blowing into microphone while singing, there are more details in vocals which i cannot explain in english, coz i'm not good at this section in english. Bass is not overwhelming, it is what i like most, not muffled, also if you EQ the bass it will sound much better as it did on my nokia with eq presets.
Pros: Non-overwhelming bass, detailed vocals, great soundstage
I got these headphones around the national holiday. These came out about 2 years after I had got my K701. I was first attracted by its classy design and colour. I thought I would never get another pair of AKG headphones since K701 has been my favorite all the time. I finally decided to purchase a pair due to the discounted price of $180 USD including shipping in my country; and most importantly, I needed a closed can(s) to enjoy music at night without...
Pros: Open Stage, No Congestion at High Volumes, Quality Built, Reference Response Curve, Comfort
Cons: Artificial Treble (can be improved with burn in & DAC/amplifier), Earcups Maybe Too Large For Some
Summary: I tried these with a Benchmark DAC1, a Fiio X3, a Fiio X1+E17 and various lesser devices including an iPhone. They seem pretty easy to drive. Music was a mixture of classical and Jazz - both CD quality and HiRes.
My value rating is based on the £107 I actually paid from Amazon. I am having to keep reminding myself how cheap they now are in order to give them much praise though.
Pros: Spacious - for closed back. Non-fatiguing, easy going sound. Work surprisingly well with iPhone.
Cons: No better than a reasonable £30 pair of open back 'phones.
Summary: Maybe the best closed headphones for this price.
Very well designed. I´m very pleased about the design, it´s simple, elegant, clean but still extremely cool. There´s not much plastic on the headphones, almost everything is either magnesium or steel. They feel pretty though so they hopefully dont brake that easy. Earcuffs are soft, very soft leather and it feels really good on ears. Overall the design is very good!
Then the sound...
Well what can I say...
Summary: This a review, as well as bit of a comparison to the Focal Spirit One, as those are the last headphones I owned and I absolutely loved them.
Man, where to start with these; right off the bat let me tell you that I absolutely love them. They are totally different from the Spirit One, and in a very positive way. When I first got the 550's, I was surprised at how heavy the box is.
Pros: Sound, Overall quality, Comfort, Closed-back but they don't sound like it, Bang for the buck
Cons: Non-removable cable, Cable is very long (3m), Can be hard to drive from small devices, not recommended for small heads because of sealing issues