EMX500 appears to be a sidestep, but they really act as an upgrade for people who prefer brighter stronger mid range compared to smoother sound (realistically, they are in the same price bracket, give Vidos a better cable, case, more foams and you see how it would cost closer to EMX500). Auglamour RX-1 is a strange pair, I've had a revelation recently with fitting them in my ears and now I strongly prefer them over these 2, by a big margin actually, even though they might have technically worse extension both ways (previously, they were worse than other 2). Don't get me wrong, you get the bass and highs if you can fit them nicely, and I believe anyone can as RX-1 is one of the smallest earbuds with smaller than average drivers. Imho, they have better mid range over Meze 99 Classics, which are very positively reviewed 300$ over ear headphones, and I still can't quite grasp this reality. Vidos blew me away but RX-1 with proper placement is beyond unreal and shakes everything I believed in in terms of price to performance ratio of any audio equipment.