There is a small (1.5dB) level matching difference between Left and Right driver between 20Hz and 1kHz but did not really detect it at all. It is there non-the-less and seems to be a driver variation difference. I re-measured it a few times, just to make sure.

AKG K612PRO Open-Back Over-Ear Premium Reference Studio

Oh my God. After I read this, “I really like the idea of planars, but from what I read they have bad imaging and soundstage.”, I’m not even lying to you, my head started to hurt. Lol. Brain cells melting. Who the h*ll are these people who say outlandish stupid crap like that? Like I’m not even kidding. The Q701 is the outlier here and clearly does have more low-end impact, sounding the least neutral out of them all because of it. To sum up, for doom segment. -1 for more than enough brightness. Doom should be really ''doom'' that's why I'm unforgiving here with giving -1 instead of -0,5. Hi-hats, cymbals, crashes, and specifically the delicate Jazz brush hits are all rendered effortlessly and with amazing Timbre; this allows you to listen for hours without fatigue. What is Timbre? I will say that I do think the 612 works slightly better for Jazz and Classical as it kind of helps to mellow out the volatile nature of Classical specifically.

Comfort: Keep in mind that these are not fully broken in. The K612 is right up there with the the K7s, but WITHOUT the angled ear pads and headband bumps of the K701/K702/Q701, and a harder padding than the memory foam on the K702 Annies and K712. The pads are fairly hard against the head due to the firm padding and the clamping, so will be a bit less comfortable at first. However, when they start to conform to the shape of your head, they become much more comfortable. The pads are deep enough for most people's ears, however I have a point on my left ear, and recently I found that point touches the driver covering, causing irritation. To remedy this, I took off the left pad and removed the foam ring insert. This supposedly changes the sound ever so slightly but I don't really notice. Since removing that foam insert I find the left ear pad much better. As far as I know, the K612 pads are interchangeable with the K7-series ear pads. La construcción, con respecto al K612 Pro, es mas "Pro"; mejores materiales y detalles, y la diadema que apoya sobre la cabeza, SÍ que es de cuero en contra del 612 que es de cuero sintetico como expreso en la reseña. The K701’s bass rolls off slightly more than the 702’s, but at the end of the day, all three (701/702/612) are very similar. The K 712 review out at Headfonics and received lots of praise. Looks like the new K series is not just (as some claim) some sort of re-branding of previous versions. A comparion of the K612 and K712 would be interesting indeed.

K612 PRO | Reference studio headphones - AKG K612 PRO | Reference studio headphones - AKG

Poor adaptiveness – the failing of delivering the same perceived frequency response to a wide range of listeners – is the number one reason why we usually recommend headphones from other manufacturers over AKG offerings for use with SoundID Reference. K612 Pro manages to reverse this trend, as they deliver superb adaptiveness and are among the best in this regard, not only among AKG models! How much do they differ pair to pair in terms of frequency response? soundstage is just perfect for my preference, it's not too huge or too airy, and imaging is exceptional for a medium sized soundstage, and can be a great gaming headphone too, if you are into competitive gaming. I spent a long time looking for an affordable pair of studio headphones. I'm a beginner when it comes to purchasing this type of headphones but I could not be happier that I went with these AKG's. My Top 2 choices are the K702, then the K712, followed by the K612, K701, and then Q701. I really don’t see a need to link all of them, so I will link the first 2 instead.Below the phase response of the K612. Above 6kHz the phase shifts are steeper and thus potentially more audible. There’s nothing inherently wrong with a signature as flat as the 612’s is, but I think most people are going to appreciate the added energy that the 702 brings to the table.

K612 | DIY-Audio-Heaven K612 | DIY-Audio-Heaven

Recently I was considering buying new pair of headphones. I saw you video about K702’s and deva’s but I’m still not really sure, and even “Before you buy an AKG k702”. I’m going to be connecting them to Focusrite Scarlett 2i2. I’m going to be using them for recording bass/guitar, mixing, listening to music and gaming (mostly competetive). I really like the idea of planars, but from what I read they have bad imaging and soundstage.

REJECT!!!

My source in testing is the 1/4inch headphone output of my TEAC UD-H01 DAC/Amp connected via USB to my Windows 8.1 desktop. I use the foobar2000 player with EQ off playing various files from FLAC to m4a to mp3 (VBR/CBR 320). In terms of sound signature preferences I like more mid centric headphones with tight, accurate bass (quality over quantity). I frequently have long listening sessions and I do get irritated by sibilance on certain bright headphones like the DT 990. I enjoy all genres of music spanning across many different era's. Enough about me, I've had this headphone for a few weeks now and after 50+ hours of burn in and constant use I am happy to share my experience. As a big fan of the AKG K701, I was hoping for the best with the K-612, but concerned that they might be a disappointment. I needn't have worried - if anything, they sound a little better than the K-701. Imaging: The imaging of this headphone is very accurate and precise, this headphone excels imaging. You have a very good idea where the instruments are located and there is good separation. Mids: In one word: linear. They are linear across the board, without being glarey in the upper mid range like the Q701s and K702s are. Because of this, they are very easy to listen to. There is a smooth mid range without being dipped to sound tolerable, like on Beyerdynamic DT990s. I have absolutely no complaints with the K612 mids. They are pretty much perfect for me in this regard. They have that characteristic AKG house sound for musicality, so you aren't missing anything there. The mids really don't make any compromises to be easy to listen to. They aren't rolled off, they aren't dipped, and they aren't veiled like with some Sennheisers.