I'm new to the whole hifi scene and these were my first value IEM purchase. And man, they're pretty awesome. I took others advice and bought a replacement cable from Amazon (https://www.amazon.com/gp/product/B07SSBDPCX/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1) and replacement ear-tips. To be honest, I spent more on the cable than I did the BL-03's and I don't even think it's really needed to be honest. The cable that came with it is decent for what it is. But, if you want the upgrade to a more comfortable and better quality cable, then pull the trigger but otherwise.. it's not needed.
I've settled on the Comply 500-core tips and have tried almost every type to find the perfect pair. I like the unwaxed isolation (for work when I want to remain quiet) and the comfy (for everything else). These have a decent weight to them and they're fairly comfortable in my ears. I don't try to jam them into my ear drums, but just push them in enough to "sit" in my ear canal securely. I also have smaller ears than your average person.
I recently just bought the Sony MDR-EX800ST (wanted a smaller nozzle size for my tiny ears) and comparing to them, the sound has a lot more bass and pounce to each song and makes listening to rock/hip hop a better listening experience than the Sonys. There isn't a large sound stage but I wasn't expecting anything insane, as these were 9% of the price I paid for the Sonys.
These would make some amazing gifts for future audio lovers as well.
Just buy them. Thank you Drop and BLON.
whifflethanks for the review. been looking what cable I need to change. been thinking whether I can use it for my TIN T2 cable since my right monitor is broken.