“ 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
“ I've been out of the loop for a while when it comes to budget IEMs. Back in the day, the low priced options were simply not very good. I remember paying $40 for the V-MODA Bass Freq as a workout IEM because I liked the massive impact, though it was obviously not an "all purpose" type IEM. I used them with my Creative Zen Micro Photo...” --project86
Uncompromising, hi-fidelity earphones deliver unparalleled accuracy, exceptional clarity, full-bodied bass, and a rich, enveloping sound. The in-ear, isolating ear-tips block out 90% of external sounds. A comfortable, ergonomic design, along with cable options, minimizes outside sounds.
Technical Details * Impedance:32 ohm(at 1KHz) * Frequency response: 20-20,000Hz * Sensitivity:120 dB (at 1KHz) * Max Input Power: 400 mv
“ For a comparison of the NE-600X vs 700X vs 770X, see here: http://www.head-fi.org/t/623137/review-comparison-nuforce-iems-ne-600x-ne-700x-ne-770x quick summary: - bass sloped sound - tiny fit - great clarity/detail - fantastic sound for $35 and easily the top choice between the 600/700/770X ” --Armaegis
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.
“ Overall I have been satisfied with these phones. I would not recommend paying full price for them like I did. ” --Skoch
“ 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
“Looking at the picture of the PK3's I wasn't expecting much. They look and feel cheap using a generic case for the drivers making them easy to fake. (In fact my first pair were fake!) these earbuds sound GREAT! Especially considering the price ($44) I have a few pair of earbuds in this same and higher price range and these PK3's knock all of them out of the water. They have a flat sounding...” --thebluebulk
NuForce NE-650M High Efficiency Earphones with Excellent Bass, Layered Sound Stage and Microphone (Black)
“ Disclaimer: The following is a review from a sample provided by NuForce First I’d like to thank NuForce, for reaching out and allowing me the opportunity to review their new IEM, the NE-650M. The 650 is described by the manufacturer as “a uniquely enhanced version of the original NE-600 series earphone. Their high-efficiency design offers an even greater level of...” --shotgunshane