Podster
Headphoneus Supremus
I actually thought regular IEM sounded quite good with the adapter despite comments I'd read. Standard IEM like Dunu DN-1000 and some other hybrids I own I preferred more than RE-400B balanced.,no problems there. It's more the thin frail wire the adapters made from and it's cable management system connected to the player. It just dangles below the unit like a lost cause.
But the sound is great!
That SQ part is good to know, looks like it may be time to have an excellent DIY cable builder look into making a better adapter cable. I'm still finding it hard to believe I'll have truly balanced output from the 1/8" adapter plug in