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Austrian Audio Hi-X55 Professional Closed-Back Over-Ear Headphones

Closed-Back Circumaural Headphones with High-Excursion Proprietary Drivers, Slow-Retention Memory Foam Earpads, Foldable Construction, and Detachable Cable
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Austrian Audio Hi-X55 Professional Closed-Back Over-Ear Headphones
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The Fit, Feel, Sound, and Stability You Deserve

What do you look for in a set of top-quality headphones? Is it the sound? Is it the comfort? Is it reliability? If you’re like the engineers and artists at Sweetwater, then you want it all, and with Austrian Audio’s Hi-X55 professional closed-back headphones, you get it. The first thing you’ll notice about the Hi-X55 is its solid construction — an impressive feat from a set of ’phones that weigh just over 300 grams. The all-metal hinges are as sturdy as they get.

But their heroic construction isn’t half as impressive as the sound of the Hi-X55’s proprietary high-excursion drivers. These full-frequency drivers clearly reproduce frequencies well beyond the range of human hearing — from 5Hz up to 28kHz. Finally, the soft slow-retention memory foam earpads practically disappear after just a minute. And with their foldable construction and detachable cable, your Austrian Audio Hi-X55 headphones are ready to go wherever you are.

Austrian Audio Hi-X55 Closed-Back Headphones Features:

  • High-excursion proprietary drivers deliver exceptional full-range audio
  • Soft slow-retention memory foam earpads take the sting out of extra-long sessions
  • Foldable construction offers maximum portability and easy storage
  • Design includes super-durable, all-metal hinges and bow
  • Detachable cable is easy to replace or remove for safe transportation
  • Equipped with 1/8-inch connector (1/4-inch adapter included)

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Tech Specs

  • Type: Wired
  • Open/Closed: Closed
  • Fit Style: Circumaural (Around the Ear)
  • Driver Size: 44mm
  • Frequency Response: 5Hz-28kHz
  • Impedance: 25 ohms
  • Connectivity: 1/8" plug, 1/4" adapter
  • Cable Type: Straight
  • Cable Length: 9.8 ft.
  • Detachable Cable: Yes
  • Features: Swivel Earcup
  • Foldable: Yes
  • Color: Black
  • Material: Slow-retention Memory Foam Earpads
  • Case/Bag: Carry Bag
  • Weight: 0.67 lbs.
  • Manufacturer Part Number: 18003F10100

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Customer Reviews

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Rated 5/5

Accurate sound, wife approved silence

Great recommendation from my rep Jonathan Appleton. I wanted a good quality closed back monitoring headphone that would allow me to hear slight differences in electric guitar tones. I also didn't want outside noise coming in. I am using them mainly with my Quad Cortex to dial in exactly what I want. These headphones are so good that you can hear every small adjustment you make. The sound balance between low, mid, and high is crazy good and I can wear them for hours literally forgetting they are on. I love that the 10' cord locks in place and disconnects from the headphones so it is easily replaceable. Obviously there are more expensive headphones out there, but for the cost these are fantastic and how good is our hearing anyway if you've been around music for many years.
Rated 5/5

Truly Revealing, which might be good or bad....

I'm an audiophile, not a producer, so I can't evaluate the AA Hi-X55s as a professional. But from a music-lover's standpoint, they are superb... as long as everything else you have upstream (signal source, DAC, preamp) is also quite good. I use a Melco server/streamer into a Benchmark DAC3 HGC (that I also use as a preamp), and the Hi-X55's are delivering the best headphone sound I've heard to date. The mark of enjoyment is when you sit down for a bit of relaxing listening and wind up plowing through as much of your library as you can before forcing yourself to go to bed because you have work the next day. Even poorly recorded tracks sound "good" because you can hear everything that's going on -- versus "palatable" because of pumped-up bass or rounded-off highs. And with well-produced tracks: oh, my!

Build quality is first-rate, and comfort is excellent... although the Hi-X55's do not isolate the listener from external noise as much as other 'phones I've used. They're also pretty easy to drive, and sound very good through my portable Bluetooth DAC. But driven by the Benchmark, they are insane. You'll not only hear voices and instruments you never heard before, but you'll also pick up on rhythmic cues and structures that make a lot of recordings make more "sense," i.e., the artist's intent is clarified because you're hearing more of the musical context. The sonic "picture" is more complete.

Again, I'm not a producer. But I can recommend the Austrian Audio Hi-X55 headphones highly for music lovers, who need not fear that the "pro" designation means that they're analytical to the point of not being enjoyable. They are extremely enjoyable.
Music background: audiophile; choral singer; failed classical guitarist
Rated 5/5

Excellent isolation and extremely neutral sound

Holy cow I love these headphones. I think I purchased 3 - 4 sets from other brands prior to finding these, including sets that were twice as expensive needed a closed back pair of headphones that I could wear all day while working for casual listening, but would also prove to be useful when performing critical listening and spot checking. These headphones deliver, and then some! I would happily purchase another pair of Austrian Audio headphones. The build quality is fantastic, and they are very comfortable.
Rated 5/5

An Overall Perfect Headphone

I'm not going to go into great depths about every miniscule detail possible but I will say this, these headphones serve its many purposes very well. If you are looking for a pair of closed back headphones for mixing and mastering or doing any kind of fine detail audio work this will be one of the most helpful tools out there. If you are looking for something with an amazing soundstage that represents sounds very accurately and with great frequency response and coverage across the spectrum this is the headphone for you. The drives in these headphones are what is known as future tech since it is a technology used exclusively for these headphones which allow an incredible dynamic range of sound while still having a low impedance rating. this makes these headphones an overall versatile choice as these can get enough signal from just a smartphone or laptop without the need of a pre amp. On top of this flexibility is the great design and build, the comfort on these headphones go a long way and really make the experience an exciting one. You will not want to go back to wearing any other pair of headphones. The build is stellar and it is practically built like a tank, this is very future proof and will last ages, plus the detachable cable feature alongside its foldability make it a well rounded piece of tech for every place you go. I'm not sure why anyone would say these are bad just because they rather a pair of headphones that have more colour or thump in the low end or any remarks like such. These do what they set out to do, they give accurate responses and immense detail, just because it is not your preferable taste to how you want sounds to appear, does not make the headphones bad.
Rated 4.5/5

excellent.

i have had the pleasure of using these headphones for a few months now. i have them paired with a shanling up5, my preferred setup is using it as a usb dac connected to my laptop. despite being closed back, they have decent imaging, and excellent clarity. when used with my dac in bluetooth mode, they sound good, but they really shine when the dac is in usb mode. the lows broaden, and the bass punch is much more impactful. isabellas lullaby sounds excellent; the vocals shimmer like a brilliant diamond. these are my first pair of truly audiophile headphones, and i cant wait to continue my audio journey in the future.
Music background: hughschool band student
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