WEIRDEST FIT, EVER.
Going to be a challenge for anybody with smaller ears.... and since a BIG issue with any IEMS/On-Ear monitors is about how they fit, it's what I am addressing first.
Trying to figure out just how they sit on the ears is the first trick. It's not really intuitive, and, at first, it seemed like they had the L/R set backwards. I found myself looking at on-line images of their "ear-models" wearing them, just to see that I had them on right! There are instructions, but the oddity of the design renders them a tad inadequate,a bit cumbersome,(they talk about "Home Position" and there's a lot of tweaking to be done), just plain complicated. Some photos of them on the ear would have been nice!
Deciding how to use the metal arms that hang them on your ears is also a bit tricky, (in spite of the instructions), and, if one wears eyeglasses, they may require even BIGGER fiddling. After I found what I thought was the KOSS-described "Custom Fit", using the "Custom Fit Dials" and all, I still found myself fidgeting them, over and over again,
If you have a smaller set of ears on you, you will ABSOLUTELY need to bend the arms to get them set onto your ears correctly, even after screwing them down. I don't feel like these are particularly secure on the ear...but I'm more of an Over-the-ear,(i.e. CANS), kind of listener, with my classical and acoustic tastes running my preferences to Beyerdynamic,Grado,Sennheiser. Or true IEMS, like Shure,Westone, Etymotic...
Once on, correctly, the soundstage is nice and open,(no claustrophobia here, as is often the case with IEMs...), in a quiet environment, the production and appreciation is quite pleasant.
Mine are "burning in."
But the immediate sound, fresh from the box, has nice detail, all ranges are adequately present, without any one range being overbearing,thready,or shrill. As usual, a decent amp does improve detail and "heft" to the sound produced.
I feel that these will be nice for listening to acoustic and classical music while doing homework or reading...activities that have you sitting still enough to feel secure wearing these so you can forget about how they feel and hear the quite nice soundstage that these ear speakers have to offer.
Because that's kind of what they are; little ear speakers aimed AT your ear canal.
I suspect that adequate burn in will offer another layer of sound quality to my experience... so I may pop back here for a more detailed comment about the sound repro after a week of playing with them.
Summary,(for now); these are a decent set of eccentrically built* ON EAR monitors that you DON'T buy for fit or looks- rather one buys them for the open soundstage offered at the portable level.But only the kind of portability that has you sitting down while wearing them,(not gonna be running in THESE!), and not stressing the fit, or the SKINNY little wires,(I too find them flimsy and lesser, as cabling goes), and using a portable amp for the fuller sound that this widened soundstage makes desireable.
They sound NICE.
But when you are talking earphones, full-size over-ear all the way down to the smallest, deep IEMS, FIT and COMFORT of wear are HUGE issues... if uncomfortable or wonky enough, you'll never wear them. No matter how good they sound.
Unless these develop a sound that is nothing short of divine....they will likely end up in my "curiosities" box.
I'm certainly CURIOUS about what KOSS was thinking, and who's ears they were trying them on, when they designed these WEIRD ear-speakers....
5-6 on my 0 to 10 scale....but only because they sound pretty good.
* I was actually able to place these on the ears of my fox-terrier more handily than on myself, at first go, LOL!