The dual driver model is a great entry to multi-driver IEMs. With a dedicated speaker for the lows, and a smaller, faster speaker for the highs, the dual driver will give you punch and clarity simply not possible with one speaker. Great for vocalists, guitar players and listening to music.
“ http://www.head-fi.org/forum/thread/530335/review-1964-t-triple-driver-customs-from-1964-ears See above for my detailed review, as well as a link to an excellent review by user lJokerl. In summary: this is the best entry level custom that I have heard (and I own several). Very pleasing sound signature, mostly neutral but slightly boosted bass and relaxed highs. Works well with...” --project86
“ 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.
“ 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
“ 1964 Ears V6, Six Driver Custom In Ear Monitor Review Firstly, I would like to clear things up before I go into a lengthy review. I paid full price for my unit, rush build, shipping, and even the hefty taxes that is imposed on audio equipment here in Malaysia. Now, with that out of the way, lets get going! How I got to know about 1964 Ears is that I was watching...” --joshuachew
“ What can I say... This is my first pair of custom I ear monitors. I just received them in the mail yesterday. I will add to this review in the next week or so after I have a few more hours on them. ” --IceOgre
“ 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
Technical Details * Impedance:32 ohm(at 1KHz) * Frequency response: 20-20,000Hz * Sensitivity:120 dB (at 1KHz) * Max Input Power: 400 mv
“DISCLAIMER: FIRST REVIEW - Be Kind... INTRO: Do you know what I love about multiple BA headphones? There is an effortless nature to their reproduction of music – with good ones, each little BA has its job to do and when the right combination of music, amplifier and headphone comes together, it doesn’t get any better. Certainly single dynamics can do a great job – and...” --Ivabign