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Fiio E9 Desktop Headphone Amplifier

3.5 out of 5 stars 68 customer reviews
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Product Description

The FiiO E9 desktop headphone amplifier offers truly stunning audio performance and versatility to headphone and audio enthusiasts. Its sleek and modern form factor, while minimalist in apperance, belies the engineering marvel within. The E9 has exceptionally low noise and distortion, providing enough power to drive the most demanding headphones up to 600? with excellent dynamics and clarity.The E9 also serves as a dock for the E7 USB DAC and portable amp. When combined, the E9 and E7 becomes a seamless high fidelity audio interface for any computer, allowing noisy internal sound cards in computers and laptops to be bypassed. With both a fixed and a volume controled line level output, the E9 functions well as a pre-amp for driving power amps or active monitors.Features- Two channel power output, with jacks for both 1/8"(3.5mm) and 1/4"(6.35mm) headphones- TI TPA6120 current f

Product Information

Product Dimensions 5.9 x 3.8 x 2.2 inches
Item Weight 1.8 pounds
Shipping Weight 1.9 pounds
Manufacturer Fiio
ASIN B004M172FY
Item model number E9-BK
Customer Reviews
3.5 out of 5 stars 68 customer reviews

3.5 out of 5 stars
Best Sellers Rank #458 in Electronics > Car Electronics > Car Audio > Amplifiers > Multichannel Amplifiers
Date first available at Amazon.com October 12, 2010

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Customer Reviews

Top Customer Reviews

Verified Purchase
I have had a portable amp (headbit) ever since I purchased a pair of Sennheiser HD 650s a couple years ago. I have been shopping for a desktop amp ever since but could not pull the trigger as every amp I tried for under $300, either distorted the sound from the headphones or it did not have enough power to drive them. There were a few amps I really liked in the $300-1000 dollar range but had difficulty in justifying spending that kind of money. I already own an E5 amp and use it when traveling to add some power for my Senn HD590's. I was impressed with that little guy that cost me $22 and nearly sounds as good as the bithead with the 590's (the E5 does not come close to driving the 650's properly and now that I have the E9 neither does the bithead portable) so I put the E9 on my wishlist for the holidays and Santa delivered it on Christmas morning.

This amp is fantastic and rivals a couple of the $500 desktops I have auditioned in the past. Good clean and natural sounding with plenty of power to spare. The sound is fantastic, a big step up from the bithead(portable) from a music detail and power standpoint. Am re-enjoying my entire music library.

If you have some hard to drive headphones, and like me could not justify spending $500 for a decent desktop amp, the E9 is for you. For the amazon price tag of $129, you really cannot go wrong here. This is one of the best bang for the buck items I have owned in the past couple years.
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Verified Purchase
I bought a Sennheiser HD 650 and tried it both with a home theater receiver and a stereo receiver for several months. The headphones sounded great with both of the units, however I still wasn't that satisfied with the headphone. I eventually purchased the FiiO E9 headphone amp and I now realize both of those receivers were not properly driving the phones. They truly sound amazing now and I feel their price tag is finally justified. I really can't believe how such an inexpensive item can make these phones sound, but it honestly is an outstanding unit at an even more amazing price.
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Verified Purchase
FiiO E9 Desktop Headphone Amplifier and Dock for E7 USB DAC

I received the FiiO E9 in the mail a few days ago and have been listening to my iPod with the FiiO L3 Line out dock through my Denon AH-D2000 headphones at every available opportunity since then - I have to force myself to take the cans off my head. I am utterly astounded by what I am hearing. I've owned the Denons for over a year and they've never sounded like this before. It's like listening to music through quality headphones for the very first time. I'm not exaggerating. I own the Electric Avenues PA2V2, the Headroom Total Bit head Amp/DAC, the FiiO E5 and the FiiO E11. These are all good products, but the E9 makes a complete mockery of them. I can hear every track with unprecedented clarity. The percussion tracks are particularly distinct and realistic. The bass is visceral - subtle, never booming. The vocals sound like they're originating in front of my face. The truly exceptional soundstage of the Denon AH-D2000's has finally been liberated. I've noted that headphone amp audiophiles are often elitist snobs - they insist that one must pay at least a thousand bucks for any serious headphone amp. I'm calling BS on that. I just ordered the E7, which pairs with the E9 and picks up the DAC duties from the MP3 player. Should be interesting to see if the sound quality can get any better than this. I highly recommend the FiiO E9 to anyone who wants to have their mind blown.
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Verified Purchase
I purchased the FIIO E9 along with the E7 DAC to run a set of AKG Q702's. When I first plugged the amp/DAC combo into the computer it detected and installed drivers right away with no required input from me. The amp/Dac combo was a big step up in terms of audio power and quality from running the cans directly off the internal sound card. The sound was very clean and some of the frequencies that were lacking when running off the sound card came thru much better. The volume knob on the E7 is great and does not give any static as you turn it up or down. I barely ever get to turn it up past 1/4th. It gets very loud. Much louder than I could ever see myself needing. If you really want to FEEL the music this amp will get you there. As the cans and amp broke in the harshness of the speakers in my cans was reduced substantially and the music opened up. I have also used the FIIO E7 by itself and now feel that I could have gotten by with just the E7 as it performs just as well by itself. One thing to note is that when you run the E7 and E9 together the bass boost feature of the E7 is bypassed and cannot currently be used. To me this is a huge drawback of the combo and I pretty much have gone to running the E7 by itself since the Q702s are a bit lacking in the bass department. Hopefully they will release a firmware update that will fix this issue. Other than that I love both the E7 and E9. For the money I doubt there is anything out there that even comes close to the quality of these units.
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Verified Purchase
I'm happy with the E9. (Not anymore. See edit at bottom)

My source is my iMac playing lossless and 320mbps AAC files, sent out through USB to the E9 with the E7 docked, acting as the DAC.

I initially just wanted a place to put my E7 when I come home from work at night. The E9 is a convenient charging cradle for the E7 and the 1/4 inch jack is a bonus, as my home headphones (Sennheiser HD558's) have a 1/4" jack. But I didn't think my Sennheiser's actually needed more headroom than the E7 by itself already provides.

And I can't really tell that the sound from these headphones is improved by addding in the E9... I *think* the bass may be a little punchier but it's subtle. The sound from the combo in general is fantastic.

Regardless, the sound is in no way diminished from adding the E9 to the E7 already in use, it may be better, but what is definitely better is the convenience of having a permanent headphone "station" on my desk, one that also charges my E7. And the analog volume knob on the E9 is also very helpful. The construction is solid and reassuing with one caveat...

The 3.5 mm socket is as flaky as you've heard. Jiggle the cord a little and the sound gets staticky or cuts out. You should be using the well-made 1/4" anyway, with an adaptor if necessary. Fiio put a resistor on the 3.5 mm socket which raises its impedance to unacceptable levels (30 ohms, I hear), damaging fidelity. Even the 1/4" at 10 ohms is probably too high, though with my 50 ohm Sennheisers I can't tell... they sound great.) So when buying this, just assume you are buying an amp with only one 1/4" jack and treat the 3.5 mm jack as if it doesn't even exist.
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