Quote:
Originally Posted by 1117 
... I was surprised to hear how much better the AKG 501 sounds compared to the 701. ... The 501 did everything else, literally better.
I was also expecting Miguel to include a certain controversial finding in his post, but since he did not, I will go ahead and post the assertion myself, not caring about what aftermath may ensue: the HD800 sounded well straight out of the little AMP3 portable DAP. I don't know how it managed to drive them, but it was! The quality of playback did not seem to suffer in the least bit. I will not argue about whether the HD800 was reaching its full potential or not, that's another topic, but as far as music quality, suffice it to say I was impressed by how the little thing outputs. More than satisfied with it. That combo was certainly the biggest surprise that day.
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If I find a cheap 501 (Miguel stated they sell for around $125-ish), I will pick one up.
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Glad you and others enjoyed the K501, it is IMO an excellent can that does not get the credit it deserves. Its midrange is just right, plus the APureSound V3 re-cable helps to smooth out its highs and bring the bass a bit forward, both very welcome additions IMO.
The Amp3 is one heck of an eye opener!

It just sounds superb and I wish it would play Apple Lossless files. It has a great battery life, superb sound, great form factor, ... and as we found it can drive the HD800. There I said it.

I also had the opportunity to listen to the iBasso D4 "Mamba" that HiFlight brought and it is a very nice sounding unit, heck I am lying it IMO just about beats all of its competition.
The HD800 was at first a disappointment. I preferred the K501 when driven by my MPX3. Then I moved it to the Luxman P1 and the HD800 improved far more than the K501 (different sources). I then tried both after swapping the driver tube in the MPX3 (2C51 to 6SN7) and the HD800 sounded much better. The 6SN7 removed the edginess I heard in the treble when using the 2C51 as a driver. However if I had $1,400 I would look for an HP1000 or an HP2 before buying the HD800. I believe many felt this way as well.
Cheers, and it was a great meet.