So I've been eyeballin these for awhile now, and as a non-audiophile...I'm blown away. For $13 I'm hearing sounds I've never heard from any of my music - ever. 45mm titanium elements.
They may not last long, but..they are at least 2x louder than anything else I've heard, super crisp. I'm using an eq app to flatten the eq, as research recommended.
I'm in Sepultura heaven right now.
There are apparently tons of mods for this family of speakers, I may get into something simple like a cable wrap.