
I'd like everyone to elaborate on what they mean on "intimate and engaging mids".
I mean, while I can't speak for the AKG 70* variants, I'm here listening to the SR-Lambda as usual, and I find music quite intimate and engaging already while having the trademark Lambda vast soundstage. Couldn't say the same for the SR-202, though; mids are noticeably recessed, at least with an SRM-212. The general sentiment amongst Stax enthusiasts is that the original Normal bias SR-Lambda is as good as it gets for midrange 'til you start shelling out the big bucks for Omega-series flagships.
Maybe it's because I'm "engaged" more by the music than the headphones I'm wearing, for all I know. I mean, headphones do help bring out certain parts of the music, but if the excitement wasn't there in the music to begin with, then no set of headphones is going to help with that.
Intimate can also be taken to mean narrow, closed-in, etc (not quite congested though). It's a sound-staging trait primarily - think about how a Grado or the ESW9 or some of the various Koss dynamic headphones will stage compared to some of the AT full-size cans or Sony full-size cans (which are "wide" or "spacious"). Planars are kind of a wrench in that (because they radiate differently) - you get a planar wave hitting your ear, instead of a conical one, and this changes the sound-staging characteristics of the cans overall (your entire ear perceives the same signal as a "wall" - Tyll actually wrote an article about this relatively recently).
Engaging is basically a mid-range emphasis in the presentation (but not over-emphasis). Bring them together and you get a relatively forward and direct presentation of the mids, and assuming nothing else is totally wrong about the cans in question, the voicing should be pretty spot-on (the RS-1 is a good example of this). Of course there's no single trait that absolutely indicates good mids or bad mids in a given can - it's the result of many things being done "right" all at once. And this isn't to say that cans with a wide or spacious stage can't be good, but their voicing is usually somewhat artificial (for example cans with S-LOGIC sound good, image wonderfully, but have a degree of artificial-ness to them).
And yes, the voicing and mixing of the source material absolutely matters here (be it mixing in a movie, or a game, or music).






















) - but that's only one aspect of the overall design. Radiation is a big deal that almost nobody talks about. It matters for speakers, and it matters for headphones. The real trick that the 701 pull off is having as good of a mid-range as they do, despite their very large soundstage. Especially for the money (they are probably the best overall performer for the money today; there are a few cans that have gone out of production in the last year or two that cost around what the 701 do, and I would contend they are competitive if not slightly better in some regards, but none of them are made anymore). It still doesn't change the fact that they have a wide soundstage, and that gets in the way of "perfect" mids - there's only one headphone I've ever heard that will begin to challenge Grado's claim on intimate mids and a wide-soundstage (the Sony MDR-F1, if anyone feels like digging up history), and they are not without flaws - they also are (if I'm remembering ancient marketing literature and the original revision of their owner's manual correctly) the result of Sony (and not modern "broke as a joke" Sony, 1990s "ocean of money" Sony) putting their R&D know-how into solving that problem. Every follow-up that Sony has attempted (and I haven't heard the newest MA900) has tried to address the F1's various flaws, and ultimately ends up more closely re-creating the K701's problems than improving on the F1 (which leads me to believe the F1 represent a very real "wall" for designers). [END QUOTE]

) K501s