Sonywalkmanuser
Headphoneus Supremus
I think the ZX507 is best paired to IEMs or under 120ohms/40mm driver headphones for optimum drivability.
I would suggest pairing to ier-m7 or ier-m9. It will offer you amazing imaging and soundstage, great frequency balance that makes it sound great with any music genre. Also both IEMs comes with balanced cables and have excellent build quality. No issues with channel balance. The only thing I would get aftermarket is a pair of final audio E-type tips. They will make the bass sound much better.
I would suggest pairing to ier-m7 or ier-m9. It will offer you amazing imaging and soundstage, great frequency balance that makes it sound great with any music genre. Also both IEMs comes with balanced cables and have excellent build quality. No issues with channel balance. The only thing I would get aftermarket is a pair of final audio E-type tips. They will make the bass sound much better.