These are the ones to go for, i have had the epsom ej1 and found it to be very lacking, espensive and hard to find, the hks ones seem to be a lot better and a lot easier to get a hold of and both have an rca out to plug into any screen, they would also have some sort of customer support, from my research the ej1 was never sold retail, it only came out in certain models as an oem product which means getting any sort of support is impossible.