I've recently bought some PSB M4U 2's and was wondering if I would notice a big difference using an amp with them? I've been looking at a Fiio E17 or E11. I could also use the Dac in the E17 on my PC or Laptop. I travel alot for work so being portable is a must.
The M4U 2's can be used passively and are only 32ohm impedance when used like that. In active and noise cancelling they are 10k ohm impedance.
I'm not sure how that would effect using an amp? I would probably only use the amp in passive mode.
Thanks for your time,