“ 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
“ 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
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.
“I have been on the search for the pair of headphones or earphones that are for BASSHEADS not Bassheads bt BASSHEADS!!!!! I believe I can finally put an end to that search. If your a Bassheads go buy now. If bass is your number one priority these ear buds are prefect. It has 3 but really 4 different bass levels wit the one dot being the lowest and the two dot he next and the 3 dot the next, but...” --Mickmikea
“ 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
“ *This is a review for the EB (Extended Bass) version, not the original* The Shroom EB's use micro drivers that sit inside your ear canal instead of just outside like most IEMs, the drivers are physically smaller and this means that the Shroom has a very small housing. They fit without touching most of your ear and can be worn cable up or down. The barrel is relatively long so it will...” --grahamnp
Technical Details * Impedance:32 ohm(at 1KHz) * Frequency response: 20-20,000Hz * Sensitivity:120 dB (at 1KHz) * Max Input Power: 400 mv
“ Overall I have been satisfied with these phones. I would not recommend paying full price for them like I did. ” --Skoch