Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › The AKG K712 Pro Support and Impressions Thread
New Posts  All Forums:Forum Nav:

The AKG K712 Pro Support and Impressions Thread - Page 217

post #3241 of 3849
Quote:
Originally Posted by Rob80b View Post
 

Should be interesting this evening when comparing them to my current favorites, the HD700s on the Bryston gear............................

 

Did not get a chance to do some heavy listening comparing the HD700s but immediate observations were quite enlightening.

"Way back when".. on these forums AKG and Sennheiser were more or less diametrically opposed, the K501s and HD580/600s were two flavors of the day, Grado being a third..... the advent of the K701s and HD650s made this opposition even more so.

Not to go into the attributes of each as there’s more than a decade of that on the forums, but here I am today with the Sennheiser HD700s and AKG K712s and damned if these two offerings do not share more similarities than differences, but in a nut shell the AKG now has bass-deep bass and has become much warmer while the 700s have shed the Senn veil and are crisper and clearer.

Appears that both manufactures in their strides to appease the masses have come head to head with similar offerings, at least when it comes to overall sound.

Without critical listening both phones could by many sound the same, but Sennheiser have put a lot of R&D into the HD700s, especially with regards to the head cup/baffle design and the driver integration and IMHO the results are rewarding with regards to staging and image placement, this of course coming from a speaker guy.  :smile:  

AKG pioneered angled placement with the K701s pads (not to mention the K1000s, another kettle of fish), but never could really hear the difference and the cup/baffle design has been used forever with minor modifications and then there are now the new memory foam pads.

The 700s for me also have slightly better attack and decay, snares having a wonderful snap and bass notes are a little tighter and central images are less recessed. But the K712s as I noted earlier are no slouch either, running off the Bryston BHA-1 they are a lot less warm sounding than when I first heard them paired with the 25-30 year old receiver mentioned above, bass was also better controlled as was focus and detail but not quite the linearity of the HD700s.

Without direct comparisons and depending on associated equipment IMHO it would be a coin toss as to which is the better phone.

There are differences but they’re close so I’m sort of torn if I’ll keep both, the biggest deterrent for the K712s is the 3 pin XLR as I much prefer the added 6dB gain using balanced as single ended, depending on source, the volume control can get maxed out on the Bryston BHA-1.

The K712s need major surgery for the conversion, unlike my K701s, K501s and DF240s, although I’ve spent a special request to AKG service to if one can get the left cover “without” the mini xlr socket installed and either install a 4 pin mini XLR or even better…hard wired.;)


Edited by Rob80b - 8/20/14 at 8:25am
post #3242 of 3849

Bit more observations while in the thick of things.

 

How much bass do they guys have, well I did mention previously that I’m a speaker guy, right, (not solely though ;)) so I do compare my phones output periodically to them. Doing just that while listening to Underworld’s dubnobasswithmyheadman the K712s had more apparent bass than my Dynaudio Special 25s  which are augmented with a 15” Velodyne, and it’s dialed in rather flat using Velodyne's SMS-1.

I’d really have to say that the K712s may have too much of a good thing, the Senns HD700s are much flatter and match the speakers/sub output to a T, but without taking an actual reading I would venture to say the AKGs may have a bit of a mid bass bloat.

The HD700s also match my Dynaudio 25s tonally, again the 712s coming across warmer and less defined, the HD700s having better image focus and staging, which I attribute to the Sennheiser’s attention given to designing and integrating the new ear cups, baffle and driver.

Still the K712s are an enjoyable listen and a far cry from my original K501s and K701s and if I hold onto them, probably my go to for movies.


Edited by Rob80b - 8/20/14 at 5:25pm
post #3243 of 3849

yup kind of feel the k712 being to the k701 like the lcd3c to the lcd2c, meaning lacking that dry mid bass punch while having more articulation and sub bass therefore the bloated feel to it especially with EDM, that loudness V shaped feel

post #3244 of 3849

Any recommendations on a good amp that could drive these things? Am thinking of potentially picking one up (Undecided, but leaning this way), and I'd just want to know if there is a portable amp out there that could power these things.

post #3245 of 3849
Quote:
Originally Posted by Silent Xaxal View Post
 

Any recommendations on a good amp that could drive these things? Am thinking of potentially picking one up (Undecided, but leaning this way), and I'd just want to know if there is a portable amp out there that could power these things.


In terms of portable amps, the FiiO E12 powers them without issue and is a pretty good match for them. I haven't tried all that many portable amps though.

post #3246 of 3849

How fast is AKG customer service typically in the US? I did inspect my headphones for the left speaker rattling issues during bass, and there were no noticeable hairs in the driver with a magnifying light.

 

I am already not in a good mood since my headphone stand had arrive earlier on Wednesday.

post #3247 of 3849

Hi, I know this is stupid but could you guys help me check something? Just open the following sample of 60Hz sine wave, turn up the volume and listen with your k712s. Can you hear a high frequency noise in the left side? I have this noise in the left side but not in the right side. Just want to know if this is a common problem or just my pair. Thanks a lot!

 

post #3248 of 3849
Quote:
Originally Posted by XIX47 View Post

How fast is AKG customer service typically in the US? I did inspect my headphones for the left speaker rattling issues during bass, and there were no noticeable hairs in the driver with a magnifying light.

I am already not in a good mood since my headphone stand had arrive earlier on Wednesday.

My K712's had rattle in the left cup as well. It only manifested with really powerful sub-bass but when it was there it was incredibly annoying. I am not sure about AKG's customer service, but if you are still within your return window I recommend that route. For me the rattle was a deal breaker...
post #3249 of 3849
Quote:
Originally Posted by achelgeson View Post
So, I recently bought a Beyerdynamic T1 off Ebay, gave it a listen. Lots of detail, great soundstage, but frequency response? You might as well have put a speaker tweeter right up to my ear. I've tried it with multiple amps, none of them give the T1 the bass I'm looking for, it's too light, and the treble is still too shrill. One of the mistakes I will never make again, trusting frequency response graphs...

Anyway, have you heard the T1 before? and if so, what's the K712 like compared to it? I bet the K712 sounds much more balanced and life like. I bought it a few months ago to try it, but I didn't have an amp at all, and I kind of forget how it sounded.

 

FYI, to amp the T1 correctly, you need to use an amp capable of high power output right at 600 Ohms (the T1's impedance). Most regular amps, and even most HT receivers, aren't really capable of that. Not many amps can drive the T1 correctly—but some that can include the SPL Auditor & Phonitor, Schiit Valhalla 2, and Garage1217 Project Ember (and some DIY amps like the B22).

 

It's been about 4 years since I had the T1 so I can't really say much about how it compares to the K712. I'd guess the K712 to have a smaller-scaled soundstage, and less clarity overall. Definitely added emphasis in the mid-range, especially in the female vocal range. The T1 actually lacked some treble to me (and I think the same of the K712 too for that matter), so I'm not sure you want to use my opinion as any kind of reference....

 

Neither the T1 or K712 are what I'd call "balanced" or "life like" btw. I've really only found that kind of sound from certain discontinued headphones (Grado HP1000 and Stax OII MKI). Most of the in-production headphones I've heard have deviated too much from that goal.


Edited by Asr - 8/21/14 at 12:44am
post #3250 of 3849
Quote:
Originally Posted by new reformation View Post


My K712's had rattle in the left cup as well. It only manifested with really powerful sub-bass but when it was there it was incredibly annoying. I am not sure about AKG's customer service, but if you are still within your return window I recommend that route. For me the rattle was a deal breaker...

 

Yep, that described my experience with the rattling as well. However, I really do enjoy the SQ from these headphones, and they are MUCH more comfortable than any other headphone I have tried for my huge head. Any other headphone would clamp my head, smash my ears/ rub against them, and touch more of my skin. So I just want my pair to be fixed from the rattling left driver and I am good to go.

post #3251 of 3849

I have no rattling in mine and for the video posted below it plays in both ears just fine on my headset. 

post #3252 of 3849
Quote:
Originally Posted by Rob80b View Post

 

Still the K712s are an enjoyable listen and a far cry from my original K501s and K701s and if I hold onto them, probably my go to for movies.

Well eat my hat and chuck me in the river, I should have done this right from the start and feel really stupid.

Swapping pads between the K701’s and K712s more or less leveled the playing, meaning the K701s with the new 712 pads, for all intents and purposes, now sound like the 712s, including the bass and the well worn 701 pads on the K712s has given them all the negative attributes I noted earlier on the K701s.

I know new/different pads can make a difference, but the change was startling!

Now to go crawl in a hole somewhere and re-read all 217 pages of this thread. :o 


Edited by Rob80b - 8/21/14 at 1:48pm
post #3253 of 3849
Quote:
Originally Posted by Asr View Post
 

 

FYI, to amp the T1 correctly, you need to use an amp capable of high power output right at 600 Ohms (the T1's impedance). Most regular amps, and even most HT receivers, aren't really capable of that. Not many amps can drive the T1 correctly—but some that can include the SPL Auditor & Phonitor, Schiit Valhalla 2, and Garage1217 Project Ember (and some DIY amps like the B22).

 

It's been about 4 years since I had the T1 so I can't really say much about how it compares to the K712. I'd guess the K712 to have a smaller-scaled soundstage, and less clarity overall. Definitely added emphasis in the mid-range, especially in the female vocal range. The T1 actually lacked some treble to me (and I think the same of the K712 too for that matter), so I'm not sure you want to use my opinion as any kind of reference....

 

Neither the T1 or K712 are what I'd call "balanced" or "life like" btw. I've really only found that kind of sound from certain discontinued headphones (Grado HP1000 and Stax OII MKI). Most of the in-production headphones I've heard have deviated too much from that goal.

Well, I did try the T1 out of a vintage Nakamichi receiver, plenty of power there, it did sound a little better and more controlled. I think I'm just not a fan of the sound sig. I prefer warmer sound, so hopefully the K712 will be good for me. 

post #3254 of 3849

Does the K712 have a sort of pivot joint that you can move the top of the cups in and out so that you have even pressure from the top of the cup to the bottom like the K812?

post #3255 of 3849
Quote:
Originally Posted by cocoonsyd View Post
 

Hi, I know this is stupid but could you guys help me check something? Just open the following sample of 60Hz sine wave, turn up the volume and listen with your k712s. Can you hear a high frequency noise in the left side? I have this noise in the left side but not in the right side. Just want to know if this is a common problem or just my pair. Thanks a lot!

 


Might be the recording, can you play it in mono or reverse the channels going to the amp/phones?

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › The AKG K712 Pro Support and Impressions Thread