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FiiO E17 Alpen Portable Headphone Amplifier USB DAC

by Fiio
296 customer reviews
| 147 answered questions

Available from these sellers.
  • Standard mini USB interface: Connect to your PC for digital audio transfer and/or charge of the 1500 mAh internal battery
  • 3.5 mm stereo headphone output: Suitable for 16-150 ohm headphones; MAX output current > 80 mA; THD <0.003%@1KHz
  • 3.5mm SPDIF input (optical, coaxial) digital connector to receive PCM signals up to 24-bit/192kHz
  • 3.5mm Analog Line-In for use with other audio sources, 18-Pin multi-functional interface to connect FiiO's L7 and E9 docks
  • Digital Bass, Treble, Gain, Volume Controls
4 new from $167.77 5 used from $144.99 1 refurbished from $109.99

Product Specifications

Brand NameFiio
Output Wattage150 watts
Color NameBlack

Product Description

Standard MINI USB Interface: Connect with PC to make digital audio transfer possible and make battery charge possible 3.5mm two-channel Headphone Output: Suitable for various headphones with 16 ohm-300 ohm 3.5mm SPDIF input connector: Connect with high-definition player and receive PCM signal 3.5mm Line In interface: Connect with audio output LO&PO of audio players 18 Pin multifunctional interface: To make audio and data transfer possible in conjunction with L7 and E9

Product Details

  • Product Dimensions: 3.8 x 2.2 x 0.6 inches ; 4 ounces
  • Shipping Weight: 10.4 ounces
  • ASIN: B0070UFMOW
  • Item model number: E17
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (296 customer reviews)
  • Amazon Best Sellers Rank: #15,506 in Electronics (See Top 100 in Electronics)
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at April 9, 2012
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Customer Reviews

Most Helpful Customer Reviews

129 of 136 people found the following review helpful By Ron Cronovich TOP 1000 REVIEWER on April 21, 2012
Sound quality has to be the most important factor. The other reviewers address that better than I could - I'm new to headphone amps, the E17 is my first one. So far, I've mainly used it as a straight headphone amp with my Sennheiser HD 650s and a short direct line out from my iPhone's 30-pin connector playing lossless or 320 bit rate MP3s. This configuration sounds really great. But I've also tried the DAC functionality a few times, running a USB cable from my Macbook Air to the E17's USB input and sending the E!7's audio output either to my headphones or my Audio Engine A2s. I can hear a difference when driving the 650s, not so much when driving the A2s (which are lower fidelity than the Sennheisers and have their own powerful amp). I have not tried the E17's s/pdif input.

The E17 has a lot of thoughtful design touches and some very thoughtful extras in the package.

It's encased in finely brushed metal with a handsome display. It looks and feels very high quality. It's also small (smaller than an iPhone), so it's very portable. It is easy to operate and includes adjustable gain, stereo balance, bass and treble (though I leave the EQ flat). Being a newbie, I'm guessing it's useful to boost the gain when driving larger cans from devices that don't put out a strong signal.

The E17's display does not seem particularly fragile, but Fiio thoughtfully includes a screen protector film to protect it from scratches. The screen protector is custom fitted with two cutouts in the right places for the buttons.

Fiio includes a short cable with minijacks on both ends, so you can start using the E17 immediately.
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71 of 76 people found the following review helpful By Sunshine on April 11, 2012
Externally: It is very small. Just a little bit bigger than a deck of card. The whole thing and buttons are made out of metal. It is a joy to touch. Screen is nice and brighter. Bottons are solid. There is no fault that I can find from the design and built. It is perfect.

Sound: I own the Sennheiser Hd598 and the Denon ADH2000. I hooked both to my laptop directly and they give loose bass and not very clear sound. When I hook my e17 up, the sound comes alive. The e17 makes the sound tigher, clearer, and very smooth. The mid and vocal are especially smooth and sweet. Bass is tighter and hit harder. Treble is clearer. There is nothing to complain.

Is it a worthy purchase? I would say YES. So buy this if you love music and listen to music daily. At this price, there is nothing on the market that can beat it.
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82 of 89 people found the following review helpful By mnmark on May 3, 2012
Verified Purchase
Appreciate everyone's reviews on all products. This is my first review and I feel compelled to provide this review of the Fiio E17. Like many of us, my objective was to research and add a DAC that could help enhance the overall music listening quality of my Digital files (yes, many from itunes; compressed). I understand that no DAC is going to completely re-create, enhance, and/or fill in areas to match an original recording. Meanwhile, we all want to have the best quality sound as possible, especially when playing on your nicer audio equipment.

I did, what I thought to be, quite a bit of research. I had several applications in mind: A portable DAC that could be used with ipod/iphone in the care, with computer, etc., and a high-end DAC that could enhance the sound with my higher-end system (KEF 107's; Nakamichi, NAD).

I first tried the CambrideAudio DacMagic Plus. Reviews seemed positive. Price was in between low-end units and high-end; had bluetooth wireless, etc. I was disappointed with the sound. Just didn't offer much, to me.

I then purchased both the Fiio E17 and the Peachtree iNova. My thought was E17 for the portable use and the Peachtree for my other system. Ran a number of tests (original CD's, ipod standalone, ipod with E17, and ipod with Peachtree -- also tried both variable and fixed out with Peachtree). I must share that I was very surprised.

While the Peachtree soundstage and higher end could be argued that it sounded a bit better, the base was disappointing. The E17, and with the treble and bass controls, was surprisingly good! I definitely could not justify $1,800 for the iNova. Sorry, Peachtree, and I was willing to pay this IF the sound was there.
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66 of 78 people found the following review helpful By Zen Master on March 5, 2014
Verified Purchase
Ever wanted a DAC but thought you couldn't afford the couple thousand plus? The FIIO Alpen E17 is an impressive DAC at an excellent price. Look around and you will find many favorable reviews of the E17 on audiophile web sites that will attest to this. It compares very favorably to expensive headphone DACs that cost 4-5 times more.

The first thing to understand is how to hook the E17 up to your computer.

Your best bet is to connect the E17 to the SPDIF optical output jack on your Mac. The what? As it turns out, Steve Jobs was an audiophile and wanted to make sure that Macs could be an integral part of a hifi system. (I've repurposed my MacBook Pro 17" as a media server.) So all Macs have an optical output jack. On the Mac, digital audio is output through the headphone jack. You just plug in an SPDIF optical cable (included with the E17) and a little red light comes out. Connect to the E17 SPDIF input. If you have a PC, you have my condolences, but you can use the USB input to the E17.

I suspect one reason some reviews have been less than favorable is that people just use the E17's AUX analog input with a 3.5mm headphone cable. If you do, you are only using the headphone preamplifier and not the DAC, so it won't sound any better than just turning up the volume on your headphones.

Also it makes a difference what you output to the E17. Don't start up iTunes and start playing aac or mp3 files. These lossy compression formats are not digital versions of your music. You want to use ALAC (Apple Lossless Audio Codec) format. To do this, rip your CDs using the ALAC CD import setting under preferences. ALAC files are digital audio files that preserve the full 44.1kHz/16 bit audio information from your CD.
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