Juzear 41T: "The Little Engine That Could" Clubhouse

Counter argument to this is Falcon Pro. It had zero stage for me.

HRTF. But the FP iirc wasnt bad for me.

Most notable one that showed that mid-bass increases stage depth for me is with the Sony XBA-Z5 (deepest iem stage I heard) where with removed mid-bass with PEQ, the stage depth suffered majorly.