TL;DR See pluses and minus above. (Older photo - I finally settled on 2 unit dials…red back / black front + no backs / black front.) These things are G.O.L.D. Just keep dialing on multiple fronts to find said audio gold. It's there 100%, and you won't find it with an entry-level phone or straight out your notebook/tablet.....   I’ll skip posting what would be my own endless amateur shaky macro IEM photos (except a few I pulled off the thread), youtube unboxing erotica video or the spec. list - it’s already been done by the other guys who...

R.I.P. Superlux 662. 'My gateway can'