Lurk650
Headphoneus Supremus
I use Spiral Dots and some other generic tips that idk what gear they came from but they work perfectly.
As far as comparing to the Lyra II, they are above them in every way. That's too be expected though. About the same low extension but the Lyra punches harder and bass is of better quality. The treble is brighter on the Lyra but has better clarity and resolution. The layering and imaging is better on the Lyra. The Pioneer is a great IEM in itself though, it sound just as good from my Fiio M3 as it does from my Opus #1. That can be good or bad, depending on how you look at it.
As far as comparing to the Lyra II, they are above them in every way. That's too be expected though. About the same low extension but the Lyra punches harder and bass is of better quality. The treble is brighter on the Lyra but has better clarity and resolution. The layering and imaging is better on the Lyra. The Pioneer is a great IEM in itself though, it sound just as good from my Fiio M3 as it does from my Opus #1. That can be good or bad, depending on how you look at it.