though i bought the v2+ as my main traveling kit w/ balanced JH13proV2 iem + silver dragon v2 wiring, today i brought my cheap(er) re-400 home from the gym today to see how they fared.
normally i use the re-400 in the gym directly from my moto XPE phone, and they are certainly adequate.
however, with the v2+ (and UAPP) in the chain, holy *$% batman!
the re-400 are much more capable and refined than i ever knew, even with single ended drive.
as an example, playing...