A very big thank you to Bob at RockJaw for sending in theAlfa Genus for review! It is also worth mentioning that, what I am getting may be different from what you are getting. Here’s a little background information about RockJaw. It is a brand new company straight from the UK whose goal is to design something that almost everyone can afford, and something that punches well beyond its own price bracket. While they have partially achieved the goal, I personally like how they are accepting the suggestions of others whilst applying it. In all honesty, I do think that RockJaw will see a bright future ahead if they carry on what they are doing, that is, improving.
At £49.99, there are literally no plastics in Alfa Genus’s housing. There is only aluminum and woodies. We all love woodies, don’t we? RockJaw uses some high quality ebony wood as well-though from which region was not specified. I did some research on the ebony wood and was pleasantly surprised! According to the source, ebony wood is among the most expensive wood in the world. It is finely-textured and has a very smooth finish when polished, making it valuable as an ornamental wood. TheRockJaw Acero also uses the same wood as the Alfa Genus, but RockJaw should be more than proud of their beautiful wood and shouldn’t be covered with black paint which sort of spoils the design. It is nice, but I would still prefer to just leave it as it is.
The cable is on the thinner side, and feels pretty light unlike the JAYS A-Jays Five’s which’s cable feels as if it is weighting the earphone down. The low profile 90 degree 3.5mm headphone jack makes it fit into almost every smartphone case, including the thick ones. Microphonic wise, it is not the quietest but it definitely isn’t the worst either. It’s not loud enough to ruin your music but it is loud enough to be heard. RockJaw has been said to include foam eartips in the near future as part of the accessories of the Alfa Genus as well as every other IEM of RockJaw. There are only three eartips included in the box butthe M-size fits my ears extremely well. As far as quality goes, these are of really good quality. The only thing lacking in Alfa Genus’s accessories is a carrying pouch which RockJaw will be including as well in the future.
The RockJaw sits in my ears, no doubt perfectly. It has a very comfy IEM and does not fall off easily and even has a tight seal as well. It is one of the few earphones that I can stand wearing for over an hour without adjusting it in between.
The RockJaw Alfa Genus features changeable filters which make it very flexible to suit a variety of people by switching between the black filter and silver filter. The “changeable filters” are not just for show, both really do sound like day and night, especially in the bass department-though I personally like the black filter best. Some have suggested that it would have been better if RockJaw designed another filter which would suit the best of both worlds. Gladly, according to Bob, they are already working on it.
The RockJaw Alfa Genus, as suggested, has been given roughly a hundred hours or more of burn-in time. Using the black filter, there is an obvious major bass roll off and things seem to leans on the dry side. Some may hate this filter with nearly no bass presence and the more mid-centric sound signature. It is however, very clean sounding, very detailed and the bass is small enough to not overlap the mids and the highs. The slightly edgy highs and upper-midrange can be a tad piercing with certain female vocals and inappropriate for bad recordings and that is where I find myself crafting for the silver filter. Other than that, it’s cleaner, slightly more spacious sound and brighter sound signature.
Switching to the silver filter, everything just feels slightly congested and the bass thought goes way deeper in with far better body. It does bleed into the midrange and put the midrange behind a little bit. The upper frequency spikes have disappeared though the bass can be slightly “boomy” at times. Vocals can sound a little chesty as well. Detail retrieval is similar to the black filter. The soundstage depth andwides are certainly lacking. I happen to enjoy the silver filter with James Blake’s Overgrown.
For £49.99, with a changeable being hard to find, it is certainly worth a try if you are unsure on what sound signature suits you the best. To sum it up, the silver filter offers some very over powerful bass and the black filter has brighter highs. If RockJaw were to develop their 3rd filter for the Alfa Genus, I would prefer it to be slightly punchy at the bass region, with deep but not overpowering, less edgy highs and a smooth midrange. Otherwise, they should redesign the silver housing for a better bass response.
Pictoria! (Click to show)