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What system synergy for AKG K612 Pro ?

post #1 of 9
Thread Starter 

...and K7xx series, maybe ? 

I am recently involved in this headphones listening ,being a speaker ( Epos Elan 10) listener. Music lover , interessed in the audiophile world , not compulsory because of the wallet :smile:. My main system is good enough for my ears ,based equally on vinyl and CD. 

For the bedroom I decided to give a chance to the streaming from internet in a price counscious system . I am almost set for an amp Hifiman EF2A for my K612 heaphones. I am also opened to other solutions , if you can give me some alternative variants ( thinking to Fiio E18 , IFi nano  ? ) .I understand the dac in the hifiman isn't great , but is it worse than the dac inside the tablet that I use to stream? ?

What dac  would be a good  match for the hifimman + K612 pro ? Also, what about the manufacturing quality of the hifiman ?

post #2 of 9
Quote:
Originally Posted by TeoS View Post
 

...and K7xx series, maybe ? 

I am recently involved in this headphones listening ,being a speaker ( Epos Elan 10) listener. Music lover , interessed in the audiophile world , not compulsory because of the wallet :smile:. My main system is good enough for my ears ,based equally on vinyl and CD. 

For the bedroom I decided to give a chance to the streaming from internet in a price counscious system . I am almost set for an amp Hifiman EF2A for my K612 heaphones. I am also opened to other solutions , if you can give me some alternative variants ( thinking to Fiio E18 , IFi nano  ? ) .I understand the dac in the hifiman isn't great , but is it worse than the dac inside the tablet that I use to stream? ?

What dac  would be a good  match for the hifimman + K612 pro ? Also, what about the manufacturing quality of the hifiman ?

 

It really depends on how much you like the sound of your headphones. If you really like them you should look for the most neutral amp (something like JDS O2). If you don't like them much or at least want to tweak their sound signature then there are plenty of headphone amps, most of them with tubes that can do the trick for you.

 

Best Luck!

post #3 of 9
Thread Starter 

For the moment , listening them only on the jack out of the tablet I feel that there is plenty of quality to discover in this headphone .There are songs that are sounding awesome ,but I expect more from an amplifier, there is a bit of limitation from the tablet (wondering how much)

I was referring at the Hifiman because I read more reviews saying that it makes a great synergy with AKG ( probably in general with tubes amps ? )


Edited by TeoS - 11/21/14 at 2:11pm
post #4 of 9
Quote:
Originally Posted by TeoS View Post
 

For the moment , listening them only on the jack out of the tablet I feel that there is plenty of quality to discover in this headphone .There are songs that are sounding awesome ,but I expect more from an amplifier, there is a bit of limitation from the tablet.

I was referring at the Hifiman because I read more reviews saying that it makes a great synergy with AKG ( probably in general with tubes amps ? )

Well, it's hard to tell. You've got a well engineered headphone, adding a well engineered dac and a well engineered headphone amp (or a well engineered DAC/Amp combo) you'll increase the overall sound quality you are getting, how much? It depends on the performance of your tablet and your subjective perception of how close the 'new' sound is to your expectations.


The general consensus is that tube amps make the sound warmer, making a more cohesive and smoother presentation at the expense of the ultimate resolution, neutrality and transparency. There might be some exceptions.

 

The biggest step up in sound quality is made by picking the best recordings out there, especially some well engineered binaural recordings such as those from Chesky Records. Recordings are most of the time the weakest link in the audio quality chain.

post #5 of 9
Thread Starter 

Indeed, I agree with your statement about the recordings being the weakest link in an audio chain.

But this is another problem than the matching of the system components ...and the sujectivity of judging this :smile:

Quote:
 

Edited by TeoS - 11/22/14 at 3:57am
post #6 of 9
Thread Starter 

Checking on this page , found this : 

http://www.audiobot9000.com/match/akg/k-612-pro/with/hifiman/ef-2a 

According to them , the amp wouldn't be powerful enough to drive corectly the 612 . On the other hand , almost all the posts found on the net by me say the amp has excessive power(volume) and some state that the hifiman is one of the best match for the k612 Pro ...

A bit confusing...:confused_face_2: 

On the other hand , synergy is not about power (only)


Edited by TeoS - 11/22/14 at 8:40am
post #7 of 9
Quote:
Originally Posted by TeoS View Post
 

Checking on this page , found this : 

http://www.audiobot9000.com/match/akg/k-612-pro/with/hifiman/ef-2a 

According to them , the amp wouldn't be powerful enough to drive corectly the 612 . On the other hand , almost all the posts found on the net by me say the amp has excessive power(volume) and some state that the hifiman is one of the best match for the k612 Pro ...

A bit confusing...:confused_face_2: 

On the other hand , synergy is not about power (only)

 

The output power of EF 2A into a 120 Ohm load is an estimation. The amp is rated ar 32 Ohm and 150 Ohm. I haven't found measurements of that amp with that exact load.

 

Based on specs, with an output of 4V, K612 will reach -approx- 113dB, that's a safe mark to claim that the amp is capable of driving the headphone. EF 2A is capable of 6,2V into 150 Ohm so it won't have any trouble with 4V at 120 Ohm.

 

I'm yet to find what synergy really means, but it's true that power is not the only important factor to determine how good an amp can drive a headphone. The output impedance has to be considered too. I'm still not sure about the EF 2A output impedance. In the specs of EF 2A in the HIFIMAN's web page says:

 

Output Impedance: 32-300 Ohm

 

(Variable output impedance?) That sounds quite rare to me but it could be possible.

 

For your headphones, to preserve the frequency response you need an amp with an output impedance under 15 Ohm, otherwise the damping factor is quite too low and an important part of the amp's power is not capable of reaching the headphone, so the amp may act as a less powerful amp no matter its specs.

 

If you can find more info about EF 2A's output impedance, it would be much safer to use its specs to know how much power it could drain into your headphones.

post #8 of 9
Thread Starter 

Thank you for your comments. I assume that they refere at output 32-300 ohm as the amp can drive headphones with impedance in this bracket . I found this kind of info for more other amps one of them being the OBH 21 from Creek (mk1) .

I'm thinking of synergy as such an interaction between the components of the system that allows the best performance possible from the system (so, the best sound -oops, that's subjective , isn't it ?:wink_face: ).Matching. So, an amp/dac with wich these headphones can achieve best sound.

I am not a basshead , but frequently I feel I'd like more bass and low mids in the sound . 

 

Apart of the hifiman , maybe other contenders that sound good (lively , dynamic ,detailed, spacious, full ,with body,presence ) with 612?

Maybe the Fiio E18 ? Or something else ?


Edited by TeoS - 11/22/14 at 12:44pm
post #9 of 9
Quote:
Originally Posted by TeoS View Post
 

Thank you for your comments. I assume that they refere at output 32-300 ohm as the amp can drive headphones with impedance in this bracket . I found this kind of info for more other amps one of them being the OBH 21 from Creek (mk1) .

I'm thinking of synergy as such an interaction between the components of the system that allows the best performance possible from the system (so, the best sound -oops, that's subjective , isn't it ?:wink_face: ).Matching. So, an amp/dac with wich these headphones can achieve best sound.

I am not a basshead , but frequently I feel I'd like more bass and low mids in the sound . 

 

Apart of the hifiman , maybe other contenders that sound good (lively , dynamic ,detailed, spacious, full ,with body,presence ) with 612?

Maybe the Fiio E18 ? Or something else ?


I don't have experience with the newer Fiios.

My E10 is quite warm indeed, E17 should be very similar. The newer Fiios like E10K, E18 are said to be more 'clear' and probably just a tad less warm, but when differences are so subtle it's hard to tell really.

 

I've read good things about the new Schiit Vali and it's output impedance is only 6.5 Ohm.

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