KPE got discontinued. The cable isn't near close to $80usd (I remember it was about $18 on Penon last year). You need to put a spacer on nozzle otherwise the tip will slip very easily. If you live in a high-humidity area the shell oxidation looks horrible after a few months (pic). It's harder to get good synergy -- sometimes it sounds rather lean from weaker sources. So definitely it isn't an easy IEM to fall in love, it requires some "doing". Also, you're solely using CP-145 eartips on BL-03. Blon reacts pretty well to tip-rolling, especially with Sony MH755 tips (my favs) and Spiral Dots (wider and flatter signature), it doesn't sound similar to Spinfits CP145 at all, so.. sotimes it's an acquired taste. .