Hi Everybody,
I just received a 5800. If anybody has any specific questions let me know and I'll try to answer them.
I tested the 5800 with a Denon D7000 plugged straight into it.
Initial impressions: Fantastic Sound. Low end sounds a little fuller than I'm used to - is there a bass boost on the flat EQ setting? I can listen to the headphones at max volume but it sounds like it's distorting a bit (or is that just my ears?).
I then ran the gamut of RMAA tests on it. I'm not going to post the exact results because I used my onboard sound and I'm convinced this was the limiting factor in such a test.
However, gsmrena.com has done an unloaded RMAA test.
Click on this link. As you can see, it actually has some great measurements. There is a bit of bass/treble rolloff but it's not really enough to cause a major (or minor) audible difference.
I then ran the RMAA loaded with the 25 ohm D7000s. Measurements are still great (mostly flat) but oddly enough there is a ~0.6 db boost at 35 hz. It starts rising from 0hz, has a .6db boost peak at 35 hz, has about a .4db boost at 50hz, then it back to normal at ~100hz.
It's very unlikely I heard this in my initial test. .6db is not much at all and even less significant considering it is at 35hz. I think that for all practical purposes the graph is pretty much indistinguishable (to most human ears) from flat.
Sansa Clip vs Nokia 5800. You're not going to get an audiophile review from me. I'm of the opinion that if you volume match all equipment pretty much sounds the same. If there are differences, it's just splitting hairs.
Unfortunately I was not able to volume match the two of them in the usual way I do so when comparing equipment. The volume of the 5800 jumps up/down quite a bit between the up/down of the volume control so I could just never line up the volumes exactly. I was able to get the volumes fairly close so I tested like that.
Bottom line - They sound pretty much the same. Both have wonderful sound.
I can listen to D7000 at full volume without damaging my ears (or so I think) but it's beyond what I'd want to listen to on a regular basis. I generally only listen to music at home so the volume output of the 5800 is more than enough with low impedance high sensitivity headphones.
If you have a 300 ohm headphone or so I suspect you'll need a separate amp.
As stated, if you have any questions please ask.