Search results
  1. guhmo

    Upgrading from E7 for UM3X

    Hi all,   Currently I use the Fiio E7 with my iPod classic to power the UM3X and I'm looking to upgrade.  My budget is around $200-$300.  Right now I'm eyeing the JDSLabs c421 with the AD8620 opamp and the Headstage Arrow 4G - I know the Arrow costs almost twice as much as the c421, but from...