“ The PK3 is a great, warm earbud. It does vocals especially well because it is very mid-focused. It has impressive bass extension, not especially strong impact; the trebles are smooth and may roll off too soon for clarity and detail nuts. But the mids are what the PK3 are all about. ” --kmhaynes
“ These were my sweetest sounding head-gear yet. It would be brilliant all-rounder if it would not require a portable amp for portable use. This is the first reason i left it, otherwise i almost got an ear infection from those foams.., they get dirty in a few weeks of massive use. I recommend them to clean, i boiled them in water. ” --angevoi
“ This can be said as a uncut ruby, why? Because it needs a lot of tempering. First time I used it, the human voice in my music was muffled by the background track itself but it wasn't to the point where you can't actually hear the lyrics itself (unlike monster beats). Though it didn't sound amazing at first, I gave it a try, mainly because it was on a discount; if it were at its...” --Miniclap1
“ Well firstly this is not a true iem. The sound is about as great as one could get from an earbud. In my limited experience and without trying the pk1, I would say these are the finest buds you can buy. With that said, these are not for everyone, this is a niche product within an already niche market. I find driving it with my D12 anaconda makes for a pleasurable sound,...” --Jamesdeandoa
“ Overall I have been satisfied with these phones. I would not recommend paying full price for them like I did. ” --Skoch
Sleek, ergonomic design and superior sound makes the "Fly" In-Ear Headphones unique and a cut above all others. Designed by world class engineers, the "Fly" In-Ear Headphones delivers superior bass and clear mids and highs. The ultra-comfort in ear design eliminates ear fatigue which allows for a longer and more pleasant listening experience. Tested with the active user in...
The SL99 provides a superior quality, full-range listening experience in a state-of-the-art, in-ear design. On the road or at work on your iPad, the SL99 is expertly built to complement any lifestyle.
PK2 earphones are the low impedance version of PK1. Although not as good as PK1, PK2's sound signature is similar to PK1. You don't have to drive PK2 with an expensive head-amp. If you are looking for something with high performance/price ratio, PK2 might be the best choice.