[Update: so I have purchased a pair of AKG K550s and currently have it paired to the Fiio E7, and so far am enjoying the sound. I've read the E7 is a decent amp but there are better amps to pair to the K550s. Is the Arcam rPac considered a solid match? Any other recommendations for someone living in London?]
So while I am getting my Denon D2000s repaired (the right driver separated from the headband, apparently a common occurrence for these cans), I was thinking about upgrading my Fiio E7 dac/amp (connected to my iMac) to an improved dac/amp combo. In particular, I have been looking at the Fiio E17 (with and without E9 amp), the Arcam rPac, the Musical Fidelity V-Can II amp (and Dac?) and Graham Slee Voyager. Three questions:
1. For the Denon D2000s only, would any of these dac/amps offer a measurable improvement in power/improved sound quality over my Fiio E7?
2. I have been looking at the Sennheiser HD600/HD650, AKG K550 or Hifiman HE-400s as a replacement for the D2000s (one day). Would any of the above dac/amps offer a good starting point for driving any of these headphones, or just be a good tonal match?
3. Any amp/dacs that I have left off the list that you would recommend? Budget is capped at 200 pounds.
I would be grateful for any member's experience with these amps/dacs, especially in combination with the Denons, Sennheisers, Hifimans.
Edited by CheekyMonkey - 11/9/12 at 2:54pm