Haven't compared them at length. Used them without an amp on an iPod and I still don't hear much difference. The iPod has a decent output impedance and measures rather flat. The E17 had a much bigger effect on IEMs and my Ultrasone DJ1 Pro though.
- 3,438 Posts. Joined 5/2011
- Location: Headphoneus Supremus Lounge
- Select All Posts By This User