Fiio E9 Desktop Headphone Amplifier

Hi All, i just purchase this product... is there anyway this amp can work with some kind of wireless battery instead of being connected to power all time?

The only good thing about this is perhaps a black finish. But it sounds like a hollow box as an empty tin can. The Out socket has started to lose contact with headphone jacks (my brand-new Sennheiser 598 headphone has a 6.3mm jack, not a feeble 3.5mm...

I bought this strictly to power my headphones for my desk top. My sound card was not up to the task. $91 seemed a fair price for the components inside this amplifier in the description. I read a bunch of reviews and the "sound" comments were generally...

I found the product images, box packaging and even some of the specs to be confusing on this product. When it arrived I was surprised to see that it is just a headphone amp! Nothing more. For $100 I was expecting to plug this into my USB port and have...

I paired this with my wife's V-MODA Crossfade M-80 On-Ear Noise-Isolating Metal Headphone (Shadow) and FiiO E7 USB DAC and Portable Headphone Amplifier (Black) they simply sound awesome! They also work good with my 580 sennheisers. Recently tried these...

I would have loved to review the E9, yet I was sent an E9K which does not work as intended with my E7 amplifier. Extremely noisy when paired together and doesn't have a 3.5mm jack. It is apparently the updated version of the E9, but I wanted an amp to...

The Amplifer was Defective (NOISE). Returned the Product for a Replacement and it has the same Problem (Sent Back the Same One???) Had to PAY $10.40 S/H and Insurance on the first return and will have to PAY AGAIN for this return! In the process of...

In the 90s and around a very, very good headphone amp. Been using AKG, Senhs, Bose and Klipsch for a long time with my mac and thhis amp gives what it says. Very recomended

To me the first impression of the product was not an amp that costs just a little over 100 dollar. I wouldn't call it being 'Built like a tank', but there could be little more to ask for an amp that costs 100 dollars. I liked the way it felt when I...

This is a great addition for listening to music on the computer or for editing song lists etc. It gives great sound and the volume control on the front makes it very easy to adjust sound levels to compensate for differences in sound levels of the...