Sony NWZ-F806 - almost no bass.
Sony NWZ-Z1050 - ok, but rather vieled.
iRiver E100 - very good.
They must have some wild impedance curve to be reacting like this. Has anyone else found these kind of obvious differences between sources?
These will need to earn a little more respect before my wallet ventures down cable lane for them.
I just received mine - bought them from an Ebay seller, "brand new, bulk packaging, no retail box" for about 50% off retail. I've been playing around with them at work for about an hour and holy compounded earwax, Batman! These things are freaking awesome! I can't wait to get them home and put them through their paces, but color me impressed.
Thanks for the info.
Certainly a difference between sources here like you've described. My Sony NWZ-F806 Walkman they almost have no bass, big roll-off in the low end. Mids and highs sound decent though, I found similar to yourself using an iPod Video, they sounded quite good. I've decided to use mine with an iRiver E100 running FLAC files, I quite enjoy my UE900 with the right genres.
At first I was a little underwhelmed but we're working things out now.
You need a warm / bassy source for UE900, UE900 is not depend on output impedance as TF10.
Apple's latest «cirrus» dac chips is warm source.
You will be also little disappointed with FiiO X5 if you like a bass.