Coming from a high end, speaker based audio background, I can attest to the fact that open backed over ear headphones have more of a "speaker sound". But I can also attest to the fact that iem tech is advancing at such a fast rate, that it's getting real close, real fast. Almost 20 years ago, I had a set of Shure E5c's and they were at the top of the headfi list. I had a set that I spent big $ on, and hated them. I sold them at a $120 loss, and bought a set of Grado SR125 over ears for a quarter of the price and thought, "Wow, now that's more like it!" I swore that iem's were absolute sh**, and I'd never buy another. Last year, I bought a $60 set of Bluetooth Edifier WBT296BT to use with my smartphone for watching YouTube vids and listening to music of my phone's SD card. I was impressed enough with the SQ (exponentially better sounding than that old TOTL Shure iem...if it had sounded at least as good as the cheap Edifier, I would have kept it). Over the past year, I have bought 2 over ears: Takstar Pro 82 and Massdrop Hifiman 4XX. Like closed Takstar more than the 4XX open back planar. Easier to drive, more fun sounding. Then I discovered BGGAR on YouTube, and I started becoming interested in audio again...his reviews, style, music tastes, gear, etc. changed my mind and made me willing to try iems seriously again. After 4 months of watching his reviews, and asking him questions, I decided on the Moondrop Kanas Pro. I gotta say that since I have owned this set, it's made me a convert into the iem world. I'm actually considering selling all my big headphones, and just looking to get a couple really good iems, good dap, another good dac/amp, and calling it quits. These new chi-fi iems/gear have just become so good and affordable, that my love for audio has been reignited. I love my DD Kanas Pro, and I'd like to see what a good BA based set could be like. This stuff coming from China affords me the opportunity to become involved again, and for less money. With new gear like Kanas Pro and Fearless, I don't feel like I'm missing out on great sound. And you know what? I've also discovered that I rather like the "more in you head" kind of sound...but still with a sense of space and air. I agree...these new iems are really getting there, and I'm really glad that they are