Hi there, a proud HD650 owner here. I'm not sure if this is a good place to ask this question since many of you probably don't bother with low-end cans. What's your recommendations for a cheap closed-back full-sized can with the HD650's sound sig? An even darker sig (more rolled-off treble? I'm...

Does battery really affect SQ? I don't notice any significant drop in battery life.

Hey guys, I've got the C5 for about a year. Recently I noticed that the amp got brighter than I recall it used to be (it's definitely on the bright side now) and the bass rather lacked in both impact and quantity through my HD650. My crappy laptop's headphone port actually delivers more...

I use a USB OTG cable (something like this    then hook the Fiio's USB cable in. These are very easy to find.   The cleanest setup is to use a cable with both ends being male micro USB but I haven't got one.  

  My unrooted Nexus 5 running on pure stock Lollipop can drive the Fiio E10k + HD558 beautifully, and I use Google Play Music. I didn't have to do anything to make it work. Not sure about other phones though, but tablets should pump out enough power to feed the E10k.

Just played with the stock equalizer of my newly acquired Nexus 5. Holy ****! What a difference a small tweak can make. Now the sound quality through headphones noticably improves, particularly much more 3D and airier soundstage, bass is cleaner and tighter, details and separation improve...

That's awesome. Many thanks! I'll order the C5 next week. I hope it pairs well with the E10k's DAC section. 

Yes, I did mention this in my post. It seems like the amp section of the E10k is rather mediocre. The C5 will for sure improve upon the E10k but I don't know if the improvement is large enough to be worth it.

My decision of purchasing the C5 has been put on hold for a while now because my question hasn't been answered: Will the C5 improve the soundstage of open headphones like my HD558 (w/ foam mod)? I feel that the soundstage of the HD558 when running off the Fiio E10k is a bit short in depth. I'd...

Can anyone confirm that the bass of the Fidelio S1 gets much lighter after burning in? Not that I really care since I rather bass-light headphones. Awesome IEM.

Great. Now I start receiving spams from HDTracks to my email address. I'll give it a week to see if I'd get a notification email of winning the draw then I'll filter emails from HDTracks out, as well as unlike/unfollow them on FB/Twitter.

So the contest has ended. Has anyone actually won? I feel like this was a scam. No confirmation email? Posts about the contest on my FB and Twitter disappeared? Seems legit huh?

How does the C5 pair with Fiio E10K's lineout?  I love the E10K. Very clean and has the perfect amount of bass (bass boost off) and brightness for me, but the soundstage lacks depth (or is it because of my hp, the HD558?).   Is there any desktop amp around the C5's price that match (or better)...

I don't have a dedicated source. The audio straight out of my Moto G is decent enough for me.   Will the B3's soundstage match those of the very best earbuds (like my MX985)?   It's a shame the B3 seems like a perfect IEM for me, except for the amp requirement part. Maybe if the new B6 is...

  This seems like what I'm looking for. Unfortunately I don't have an amp. Not that I don't want to spend on a cheap amp. Since I need something for outdoor use (I have the HD558 plugged into my old Onkyo receiver for home use, and of course the MX985) , I don't like to carry an amp around with...