I know I'm bumping an old thread but maybe there are more people that have had a chance to try/buy the Atomic Floyd IEM's, or would like a completely subjective review...
I was in Amsterdam a few weeks ago, and sadly, I lost my e4c's in Heathrow on my way to the Dam. I found an Apple reseller near Dam Square, and browsed their extremely expensive selection. I decided there was no way I was spending >200 Euros on anything, as I detest paying retail, and knew I was already going to get killed on the exchange rate.
Enter the Atomic Floyd HiDefJax AcousticSteel IEM's. With the exchange rate, VAT, etc. I payed just under $200 for them, but I was in a pinch.
First impression, pretty underwhelming. Really, really thin sound. However, after a few hours of burn-in, they began to open up a little, and after a full day and a half of use, the sound became very thick and flushed out. Lots of bass, much more than the e4c's, which I used to use with Shure yellow foamies, with a healthy dose of mids and highs. I was pretty happy, especially given the long flight back I where I knew I'd get an opportunity to enjoy them more.
Fast forward a few days to home and I remember the freebie Monster Super Tips sample pack I had tried to use with the e4c's. I replaced the medium stock silicone tip with a set of the medium sized silicon Monsters. Holy crap. It was as if I'd bought a different pair of monitors, all of the sudden, I'd never heard anything quite like it. Upon inspection, the stock tips have huge airspaces between the nozzle portion of the tip and the actual silicon that makes contact with the ear. The Monsters on the other hand, are solid (meaning there are no voids), and the magic must be in that solid connection between the earbud and the ear. Regardless, the tips MADE the headphones come alive, and I couldn't be happier. I honestly have not heard more bass from an IEM, but at the same time it's not obnoxious, just much more present and balanced than any other IEM I've tried.
As for fit, comfort, etc, they are surprisingly lightweight feeling considering all the mass present, and the monster tips seal infinitely better with the AF's vs. the e4c's.
Am I happy? Yes. Would I buy them again? Yes. Would it help their sales if somebody sold them here in the US (besides the Apple store)? For sure.
Complaints: Carrying case is too small, the packaging and website are completely devoid of any useful technical information. I like numbers, and I think the majority of potential customers willing to drop significant money on iem's wants real information.