“I really like this earphone because it gives you wonderful sound quality at a reasonable cost. When I started listening to all the songs on my laptop with this earphone and also all of the smooth jazz, it was as if the whole world was cut off because of the noise cancellation. I use it on the airplane and I couldnt hear the tons of babies that were on the plane . I tried it with three...” --SandyMan
“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
“ 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
“These buds came from amazon I was simply looking for something more suited to the bass head genre of music that really packed a punch. True these do pack a punch but to be very honest with you all they only pack a punch. The bass is actually extremely poor, there is a difference between punch and tight punch. The bass in these gives a punch that makes your ears rumble but the actual detail and...” --Hawkinssa
“ 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
“Hello fellow Head-fiers!. This is my first review in Head-fi, but before I begin, I'd like to give a brief introduction about me. I'm an average individual who loves listening to almost wide range of music genres from classic to rock, except current pop, rap, and hip-hop, but I mainly listen to songs as long as they sound good! I primarily listen to metal and rock; but recently, I've gotten...” --Gandasaputra
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.