Fiio A3 Portable Headphone Amplifier (Black)

Just got this thing ... WOW. I'm going from a FiiO E5 (which I've loved, but no comparison) to this E11K.I'm using it with a Samsung GS3 and Beyerdynamic DT 770 32ohm cans. I listen to .wav files (some Mp3 and streaming, but only if I have to).I don't use bass boost (that's for kids); have the gain (surprisingly) set on high. This thing sounds so sweet.Don't know what other people are griping about, but I am more than impressed with this little unit.The only thing I can say negatively is that I will have to get used to strapping the unit to my phone, and that is only something that will take a few days of getting used to.For the price? No-brainer ...Plenty of bang for a few bucks.Will update in a couple of weeks.**Update 9.27.14**Have spent a couple of weeks with the E11K now. I still love it.Biggest gripe? The volume dial. It's just too easy to run up the volume while the rig is in my pocket.Phone and amp combined weighs 10 oz. even (yes, I'm a geek ... I weighed it).I wear cargo shorts, and when I sit down, volume sometimes gets jacked up (never down! lol). It doesn't happen fast enough to blow my drums, but I do have to readjust the volume on the amp. I can adjust the volume simply by finding the knob from the outside of my shorts. I don't even have to reach into my pocket.I've listened with Sony MDR-7506 (old version), Senheiser HD-558, and the cans I listed above. All sound so nice. The Sony is way too bright when I pushed the volume, though. When you can listen to music for hours at a time you should know you've got a rig that works very well. Fatigue isn't an issue at all.Strapping the amp to my phone (the amp comes with two straps; I only need one) is no big deal; easy enough. The only downside to the setup is I have to slide the strap up and down the phone in order to interact with the screen. If I really need the screen I take the whole thing apart. Still not a deal-breaker in any way for me. I bought the device knowing how the setup worked.As an aside: If I try to charge the unit with a usb plugged into my PC, I get feedback. If I charge it using a usb cord into a cellphone charger that is plugged into a power strip while running audio through the amp from my PC. NO FEEDBACK.So just don't charge it from your PC if you want to listen to it while charging? I have no issue.I put four of the rubber feet on the side that pairs with the phone. The remaining two feet I put in the middle of the amp on the out-facing side. It's a rock solid pairing, and when I lay the rig down, the two dots on the outside keep it from touching (scratching) the surface. The rubber dots will, at some point, wear out. I think I'll go to felt pads at some point.Battery life is great. I haven't drained it dead yet, and I've had plenty of extended listening sessions with it. Battery is a champ.I've quickly adapted to using this little wonder. It's not perfect but, for the price, I can't complain at all.It makes a good recording come alive, and that's what I wanted.

This is for those who have the V-moda Crossfade 2 Wireless and needed a review on how this FiiO A3 pairs up with this headphone. I'm going to start off to be plain and simple on how the headphones are without this Amp on a iPhone SE. I have never heard other V-moda headphones before, so these are my first Vmodas I have and listen to. Going by other reviews these are between the M-100 and the first Crossfades. On my IPHONE SE in wired mode The bass on the Crossfades 2 is reduced mostly in the sub/ bass area I feel but the bass is tight and doesnt bleed into the mids or highs. I feel the Highs are crisp and on point and imo more enhanced than the bass and mids in wired mode, basically sound neutral into the Hifi audiophile territory in wired. I really felt the iPhone SE wasn't giving my Crossfades 2 the juice it needed to really sound to its best potential. To be honest it actually sounded distorted at times and felt weak. The volume was low and i had it on max all around. The bass was so weak, I almost believed it was the headphones Until I decided to get this baby the Steroids! lol. The Crossfade 2 needed a amp cause the iPhone SE wasn't giving the power the headphones needed. I decided to go with the Fiio A3 after going threw intense research of reviews on the FiiO A3 around the web and seeing how amazing this amp is for the price and quality of it. Once i paired the V-moda's Crossfade 2 with the FiiO A3 amp in wired mode, the difference is NIGHT AND DAY. This amp gives the Crossfade 2 everything they needed that my iPhone SE couldn't which was Power but gave the headphones even more, this amp gave it SUPER POWERS. THE BASS and Sub-bass thumps when the Bass is turned on, they felt and sounded banging too like being in a nightclub, punchy, tight, more booming but controlled especially with trance music such as Sean Tyas, Simon Patterson, Armin, John O'Callaghan and many more. The sound was warm and very detailed about the same as the Crossfades 2 without the amp, they are HiFi too. The volume was also able to increase about 3x the max then what was just given with the iPhone SE with the Crossfades 2. I usually don't review products but i went crazy looking for anyone who had the new V-moda's Crossfades 2 Wireless paired wit this A3 on a iPhone SE in which by the way, Good Luck trying! cause this is probably the only review on this combo. I definitely HIGHLY recommend this combo together if you have the iPhone SE cause the sound source on that iphone is garbage compared to the FiiO A3.