Austrian Audio Hi-X25BT

idc

Well-known member
Jan 2, 2008
1,165
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19,370
A while back, looking to upgrade my falling apart AKGs, I was very tempted by Austrian Audio. The engineering connection between the two companies and descriptions of an analytical sound appealed. But, AA use a right hand side cable and leather pads, and I wanted a left hand or both sides cable and fabric pads, so Shure got the gig.

A birthday, some money and an imminent holiday made me revisit a headphone issue. For holidays, I have been using some Bose Quietcomfort in-ears that were over £200 to buy. But, I don't really like them. I don't like things in my ears and I found the sound to be flat, unimmersive, uninspiring. The cost meant I have been persevering for too long, putting up with poor sound on holiday. Seeing so many people out and about with bluetooth headphones, I decided, time to change. The AA Hi-X25BT at £129 from Richer Sounds looked good value and the reviews are excellent. So, happy birthday to me.

This is a rolling review, to be added to. Here are the initial impressions. Out of the box, wow, £129 for some beautifully made headphones, various cables and a fabric bag. They are light, fit well and even with glasses comfortable. The leather pads do get warmer than the fabric I prefer, but is not bad. Setting up and pairing the bluetooth was easy. The instruction manual is OK. The writing is tiny and diagrams make little sense. But, with one button and two indicator lights, there is nothing too complicated. An initial charge took about 90 minutes before the red light went off.

I like that there are three options, bluetooth, analogue and digital cable connections. I can pair with my mobile, use the analogue for my headphone amp and digital to connect straight to the laptop. These headphones have been bought with bluetooth in mind, so start there.

I am using an Oppo A54s and the Spotify app as a source. It has yet to fail to pair and I can get reception all over the house and garden. I do not believe that a different phone or musical source would make any difference to the sound quality, it is digital.

As for the sound quality, impressive, for me anyway. It was unlikely to be other than that, as my direct comparison was the Bose. But, it is also impressive when compared to my main system of Firestone, Musical Fidelity and Shure. The AA are brighter. There is more emphasis on the higher range, cymbals are to the fore. Bass is light, but has detail. I am playing from my favourites playlist, so it tracks I listen to a lot (I am in Spotify's top 2% of listeners for hours of use). The track Half Asleep by the School of Seven Bells sounded like it had been remixed, it was that different from what I am used to. This is where assessing sound quality becomes personal preference. The AA brightness is not bad, it is different. It has not ruined the track, like the Bose does, by making it flat and boring, it is just a new take on the sound. The one area where that top end clarity and emphasis does cause an issue, is that any recording with a tape like hiss in the background, has that hiss more prominent.

No matter sound quality, does the music give me goosebumps? The answer is yes. The AA rendition of The Ocean's Subboreal and Korn's Beg for Me give me goosebumps. Blue Heaven by Public Service Broadcasting has given me goosebumps as I was typing this.

I would confidently say that spending £129 on the AA Hi-X25BT and pairing them to your mobile phone, will give you superb hifi sound quality that rivals far more expensive headfi set ups.
 
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Battery is still going after about 6 hours of listening. There is no sign of running in and the sound changing. It is still detailed, and bright, emphasising treble with bass detail, rather than thump.

The right hand side has a touch volume, pause and skip slider. It is oversensitive for volume control, so I found happy medium and use my phone's volume instead. Touch sensitivity is fine for pause/play.
 
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Seven days later and I wish I had kept track of how many hours listening, but it must have been at least the 30 hours the manual suggested, and the battery has stopped play. Switched to analogue and connected to the headphone amp.

They are certainly sensitive, I have the volume set lower than any other headphone I have used on the X-Can V8P. The bright, emphasis on the treble, lighter on the bass sound is the same as with bluetooth. I get no sense of more power, because it is connected to an amp. The clarity remains quite spectacular for the price.
 
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Now connected by USB to the laptop. I am certain that in a blind ABX test, I would not be able to tell if the source was analogue and my headphone amp, Bluetooth from the phone, or USB from the laptop. Staggeringly good sound.

Best headphones I have ever bought, in terms of price, sound quality and flexibility.
 
Are the sound levels the same when connected digitally via USB? I have just bought these headphones and from my phone or tablet the levels are so low as to be unusable.
 
Your mobile is convenient but if you're looking for better power delivery, better sound quality and less distractions, it would be prudent to invest in a DAP player.
I stopped listening on my mobile because it was draining my battery and sounded poorly.
The AA is without doubt an excellent headphone but for the same price, the FiiO Ft1 are a real giant killer. Those cans come in real wood.

I have only used them on my DAP, so it's difficult to say, if these are easy to drive as AA on your mobile.
There are so many budget headphones out there. Headphones are not speakers, very much a personal taste, difficult to predict if you like or not.

Glad you're happy with your AAs 😊
 
Well the sound is fine, but I bought them for the direct digital input as well, and I've tried it on a different phone and still far too low. On top of that the touch pad stopped working after half an hour and even a hard reset hasn't fixed it. I suspect I may have a faulty unit, I'll try and get in touch with AA but I think they are going back 😕
Edit: OK, so I plugged them via USB into my laptop and the volume is absolutely fine. Is there a volume setting somewhere on android phones to control the digital signal level independently of the main media level?
 
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Sorry to hear that.
Well the sound is fine, but I bought them for the direct digital input as well, and I've tried it on a different phone and still far too low. On top of that the touch pad stopped working after half an hour and even a hard reset hasn't fixed it. I suspect I may have a faulty unit, I'll try and get in touch with AA but I think they are going back 😕
Edit: OK, so I plugged them via USB into my laptop and the volume is absolutely fine. Is there a volume setting somewhere on android phones to control the digital signal level independently of the main media level?
Sorry to hear that. I hope you get it sorted.
All the best J.
 

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