“PREAMBLE INTRODUCING ROCK JAW’S ALFA GENUS SINGLE DYNAMIC DRIVER IEM (Updated 8th Sept) Special Note - I've updated the review 8th Sept 2014 - amendments are marked in red for easy identification. The Alfa Genus From Rock Jaw Alfa Genus Paired With Fiio X5 RockJaw UK is a relatively new headphone/earphone manufacturer...” --Brooko
“ 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
“ Got these at Amazon after a long search and much reading. Sound for the price is really good. Not in the same league with my Sony Pros or the Sennheisers but surprisingly close. I have them connected with a REALLY cheap headphone amp and the combo far exceeds what I expected. Clear, roomy, dead quiet. ” --Richard S
“ 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
“ARCANA IEMs: Rock Jaw offers a variety of IEMs and headphones, aiming to provide great value, reliable and robust devices, with self proclaimed minimal packaging and overhead to help minimise cost. Rock Jaw ARCANA IEMs are a solid entry level dual driver IEM offering a fun sound signature at a remarkable value for money. I have so far racked up 40 enjoyable hours of use with...” --ApplesRevenge
“ 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
ROCK JAWs latest hybrid the all new KOMMAND. The KOMMAND is a hybrid balanced armature + dynamic. Constructed from wood and aluminium and features 3 tuning filters for high frequency, neutral and enhanced bass.
ROCK JAW HYDRA feature ROCK JAW's latest designed dual 11mm + 6mm drivers. For greater balance and separation.
The ACERO headphones are built from high quality materials, from the light weight stainless steel frame and ebony headphone cups to the suspended headlining and supple cup cushioning. Our in-house custom tuned 50mm driver with our evolutionary voice coil technology deliver exceptional clarity, separation and balance allowing for accurate sound reproduction and accurate bass.