The AKG K712 Pro Support and Impressions Thread
Aug 6, 2017 at 11:13 PM Post #5,041 of 6,349
My, if those are authentic Austrian models they sure are a steal. Though I've stepped into a couple of HK stores while I was there last year and none of them stock Austrian models anymore. They only have Slovakian made models for retail so yea, kinda fishy.

Is there really that much of difference really? I doubt it.
 
Aug 6, 2017 at 11:18 PM Post #5,042 of 6,349
The more important question was if anyone here had bought from either of those sellers, and can verify if either is offering genuine headphones. I have seen a couple instances online of people buying fake K712 Pro headphones. Those prices are tempting, so I obviously want confirmation here before I buy.
 
Aug 6, 2017 at 11:33 PM Post #5,044 of 6,349
My, if those are authentic Austrian models they sure are a steal. Though I've stepped into a couple of HK stores while I was there last year and none of them stock Austrian models anymore. They only have Slovakian made models for retail so yea, kinda fishy.
Slovakian models are just as authentic as Austrian models
By the way, Slovakia is around 60 kilometres away from Vienna
 
Aug 7, 2017 at 12:10 AM Post #5,045 of 6,349
I actually sent a message to both sellers a few hours ago. I have not heard anything back yet. I will let everyone know what they say.

Cool, i have read anything about confrimed fakes of the k712. If you have some links id like to read them.
 
Aug 7, 2017 at 12:51 AM Post #5,046 of 6,349
Alright, I heard back from the first seller at the link who has it for 229. Sadly, you get no warranty with AKG. The store said "we offer a one year warranty through our online store, but you will have no warranty with AKG". No way in hell should anyone buy from this seller. I know someone will ask as well, and no, they have no Austrian models. They are all Slovakia. I am still waiting to hear back from the other seller.

http://www.ebay.ca/itm/131665852400?ul_noapp=true
 
Aug 7, 2017 at 1:01 AM Post #5,047 of 6,349
I just got a message from the second seller. They also only offer a "store warranty". I will copy and paste.

Hello,
This is 100% Genuine and brand new in box.
Since our items are imported from Asia, therefore you will not be able to receive official warranty from AKG.
It will only come with our 12 months seller warranty. If there is any problems, you may send it back to our HK address for repair service.
That's why our price is slightly better.
However this is made in Slovakia since all new AKG K712 are made in Slovakia now.
Thanks
 
Aug 7, 2017 at 2:33 AM Post #5,048 of 6,349
I just got a message from the second seller. They also only offer a "store warranty". I will copy and paste.

Hello,
This is 100% Genuine and brand new in box.
Since our items are imported from Asia, therefore you will not be able to receive official warranty from AKG.
It will only come with our 12 months seller warranty. If there is any problems, you may send it back to our HK address for repair service.
That's why our price is slightly better.
However this is made in Slovakia since all new AKG K712 are made in Slovakia now.
Thanks

Looks like they probably both sell grey market stock not officially obtained through AKG.

That would be why they are charging these prices, and not having a warranty with AKG. It's up to you if you want to save a few bucks and forego the official warranty etc. I haven't heard of any "FAKE" 712pro being made/sold. I'm happy to be corrected though.
 
Aug 7, 2017 at 12:29 PM Post #5,049 of 6,349
Slovakian models are just as authentic as Austrian models
By the way, Slovakia is around 60 kilometres away from Vienna

In no way was I implying that the Slovakian models are any lesser than the Austrian ones quality wise, my bad if I came off that way. It was just that the Austrian made ones were earlier batches hence they are more desirable; atleast for me. And because the ebay link posted showed a Made in Austria model and also a built in Austria description with location being based in Hong Kong which I have personally searched high and low last year for one but in vain. Hence I got myself a Slovakian model instead.

However, I happen to chance upon a new unopened Austrian made K712 Pro in one of the Tower Records in Tokyo earlier this year (can't remember which) but it costs over USD300.
 
Aug 7, 2017 at 2:16 PM Post #5,050 of 6,349
In no way was I implying that the Slovakian models are any lesser than the Austrian ones quality wise, my bad if I came off that way. It was just that the Austrian made ones were earlier batches hence they are more desirable; atleast for me. And because the ebay link posted showed a Made in Austria model and also a built in Austria description with location being based in Hong Kong which I have personally searched high and low last year for one but in vain. Hence I got myself a Slovakian model instead.

However, I happen to chance upon a new unopened Austrian made K712 Pro in one of the Tower Records in Tokyo earlier this year (can't remember which) but it costs over USD300.

Ok, no problem. Although I agree the earlier austrian ones are more desirable from a collector's perspective it should be noted that more often than not, manufacturers introduce small improvements to their products (silent revisions) based on the customer response and performance of the earlier units. It can be something as simple as using an improved glue here or there, or more important things such as changing the density of the material inside the earpads to make a subtle shift in the frequency response. Not saying this is the case with K712 as I haven't studied it, but it's a pretty common practice among manufacturers.

With that in mind, getting the latests units can be the safer move.

Can't speak for the HK sellers.
I know prices in Europe are often pretty good for these headphones.

Amazon.es have them for 228 EUR
 
Aug 7, 2017 at 5:40 PM Post #5,052 of 6,349
Aug 18, 2017 at 11:24 PM Post #5,053 of 6,349
Alright, I have had my K712 Pro for a couple days now. As I do with every headphone, I have gone through my usual critical listening stage for the first 10-15 hours. I will put my EQ up at the end of my description down below as well. Oh man, does this puppy ever respond well to EQ. This is a fantastic headphone. It is a full step up from my DT880 in every way. It is also beating my HE400i, which I modded with the HM5 pads. Of these 3 headphones I own, the K712 Pro is definitely my favorite. In terms of build quality, I wish there was a little less plastic used, and the use of more metal. It certainly makes me wonder how these headphones will hold up over time. I baby all of my electronics, but a better build quality would have been nice to see. In terms of comfort, these are the most comfortable headphones I have ever worn to date. I thought my DT880 was comfortable, but this is even better. The clamping force is perfect, and I get no hot spots on the head at all. The pads are like pillows around the ears. I imagine I could use these for a full 12 hours straight, and would not feel the need to take them off.

Now, lets get on to the sound. This headphone has really surprised me. Right out of the box, it has better bass extension and quantity than I expected. I am right into hard rock and heavy metal, and the K712 Pro totally excels at these genres. In terms of bass, It fully extends down right to 30Hz. In fact, the bass on this headphone actually reminds me of the bass on a closed back headphone. It is fast, tight, and detailed. In the sub to mid bass range, there is nothing I would change. The lower bass sounds perfect to my ears. This is such a grooving headphone for heavy music. The bass on the K712 is deeper, more extended, and more impactful than the DT880, no question. With that said, however, I find the bass to be a bit too forward in the upper bass range of 160Hz to 300Hz. This upper bass increase is not present at all on the DT880. It results in a bit of muddiness and bloat. With a slight EQ of that region, things are much more balanced now. Be aware, that as an added bonus, by reducing the elevated upper bass, the soundstage, separation, and imaging on the headphone will improve. I have actually seen a couple people claim this headphone lacks bass. I am totally shocked. The only way someone could find this headphone to lack bass is if they are a complete bass head. Either this, or they are using a weak amp/no amp. I did not expect this headphone to actually have the low end frequency capability that it does.

Now, regarding the mids, the K712 Pro has a strange tuning. There is that classic 2kHz to 2.5kHz peak that is often present on AKG headphones. However, then there is a sudden drastic dip right at 3kHz, which continues on to disrupt 4kHz as well. Without any EQ, it gives me a bit of that "I put my hands over the back of the headphone cups" type of sound. Once I put EQ to this area, I was able to flatten the entire midrange. Regarding the mids on this headphone, just wow. Guitars on this headphone sound fantastic. They are detailed, thick, and full of body. There is nothing harsh about the presentation. Guitars sound exactly like they should. The vocals on this headphone actually have a similar presentation to the DT880, however, they are certainly more forward in the mix on the K712 Pro. Vocals are clean, smooth, and realistic. This headphone has a character to it which is very similar to a quality "speakers in a room" type of sound. The soundstage on the K712 is also wider than the DT880, and with increased depth. There is more space between the instruments. This is also a warmer sounding headphone. I actually did not expect this headphone to have the warm presentation that it does. I usually go for a more neutral headphone, but this puppy really makes things sound good. I remember when I had the K612 Pro, and I ended up selling it. It had flaws in its sound that I just could not tolerate. The 2kHz peak on the K612 Pro had a grain to it that actually ended up giving me a headache. After it happened over and over again, I ended up selling it. Interesting enough, the K712 Pro also has a 2kHz peak, but there is no harshness or grain to that peak. It is MUCH SMOOTHER. In fact, there is a smoothness to the entire presentation on this headphone, at least on my pair. It is amazing that it seems to do this, yet offers so much detail. These headphones love pulling details out of music. You can hear things that other headphones at this price level just can't produce.

I have seen a couple people say that this headphone has a monster 6kHz peak, which causes fatigue. On my headphone, this supposed issue completely does not exist. I am not sure if this is a result of driver variance, but the entire mid treble on my headphone has no harshness at all. In fact, everything sounds as it should all the way up to around 9kHz, and from there, I can hear a bit of roll off all the way up to 16kHz. Yes, there is an upper treble veil, but it is not huge. It gives a sound that that is a bit relaxed. The treble is quick, accurate, and defined. Everything is smooth, and without any grain or harshness. Everything in the upper frequencies is articulate. The drivers in this headphone are very fast. I have seen some claim this headphone is actually too bright. To me, there is just no way. I do not find that to be the case at all. I do not detect any fizz, sssssss, or other ear fatigue causing aspects. I say once again, this headphone responds better to equalization than most headphones I have tested.

Edit: On further critical listening, I have detected a small spike right at 12.5kHz. This is interesting, as the rest of the upper treble is actually slightly rolled off. I ended up lowering that by - 0.5.

In terms of power, of course this headphone needs an amp. With my M-Stage, the K712 requires the least on the dial of my three headphones. My DT880 Premium 250 Ohm requires more than the K712, and the HE400i requires the most out of three. I was expecting the K712 Pro to require the same amount, if not a little more, than the DT880. Turns out, it is about 10 percent less on the dial to reach the same volume.

In terms of EQ, I highly recommend anyone to try this set. Granted, we all hear things differently. I would bet that at least a few people here will like this EQ though. This is it for me for headphones for quite a while. I don't see any point in looking elsewhere. This is a fantastic piece of audio hardware.


Pre-Amplifying: - 2

63Hz: + 0.5
80Hz: + 0.5
160Hz: - 0.5
200Hz: - 1
250Hz: - 1
315Hz: - 1
1.25kHz: + 0.5
2kHz: - 1
3.15kHz: + 2
4kHz: + 1
6.3kHz: - 0.5
8kHz: - 0.5
10kHz: + 0.5
12.5kHz: - 0.5
16kHz: + 0.5

Edit: I am sure someone will ask. Mine is a Slovakia version..

Edit 2: I am probably at around 35 hours use now. Wow, this is an amazing headphone !!!!! The sound is even smoother now than it was out of the box. I am so impressed. This headphone is a must buy for people who enjoy hard rock and heavy metal music. The smoothness, combined with the imaging and detail retrieval, is just fantastic.
 
Last edited:
Aug 19, 2017 at 12:11 AM Post #5,055 of 6,349
Perhaps I will do a comparison in the next few days between my HE400i with the HM5 pads, and the K712 Pro, and put up my impressions as well.

Excellent write up very informative thank you
 

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