Some time ago Indid a head to head comparison between the shure se215's and Westone UM10's. Westone won that battle in every way. Fast forward to this year and I picked up the KZ AS10's. They are a significant step better again. I find them to be awful close to my AKG 141's. I'm also using the Comply tips. I find them to be a better deal than the stock silicone tips