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Topic: STX 2 with K712, good choice ? (Read 2347 times) previous topic - next topic
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STX 2 with K712, good choice ?

Hello, i'm new to this forum, and french (so excuse my poor english xD).

I have a question about a set i own for about 1 week. I have a Asus STX 2 and a AKG k712Pro. I'm really happy about this card, quite an improvment from my MB chipset, and this headphone is just PERFECT for me, cristal clear sound, not too bassy, balanced but not flat...

My questions is about the 1/8 impedance rule.. The STX 2 headphone output is 10ohm, and my headphones is 62ohm impedance. So the rule is break (by a little, but still..) and i'd like to know if there is anything audible.. I don't have other AMP to compare with.

I did some research and find this topic : https://hydrogenaud.io/index.php/topic,106361.0.html

But the results are not available anymore, and my understanding of english not perfect, event if i understood that some opinion tend to say the difference in frequency response is not audible..

Anyone can confirm wether or not my set is good ? If the 1/8 is so important than I should upgrade to another AMP ?

(I also will change my opamps (even if 8920 are quite good) by muses 01/02 if necessary)

Re: STX 2 with K712, good choice ?

Reply #2 –
Quote from: Goodkat on
Anyone can confirm wether or not my set is good ? If the 1/8 is so important than I should upgrade to another AMP ?

No you don't have to.  We're talking of a less than 1 dB change pass 16 KHz frequencies.

Quote from: Goodkat on
(I also will change my opamps (even if 8920 are quite good) by muses 01/02 if necessary)

Don;t do that, there's no need, the STX already performs very well, adding a ''better'' 'opamp can even lead to them oscilating, and you're not even changing the opamp that drives the headphones (only the gain opamps).

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You can always do a loopback to determine if the card is performing nice if you still have doubts.

Get a Y 3.5mm splitter,  do a loopback and perform an abx test. That is using a Y 3.5mm splitter, and record the card while driving the headphones (Card -> Splitter -> Headphones and card's line input), time match the recorded file with the original one, and compare the two using abx comparator.

Re: STX 2 with K712, good choice ?

Reply #3 –
Thank you very much  ;)

Re: STX 2 with K712, good choice ?

Reply #4 –
Guys, just so i don't create another topic for a related question.. The AKG 712 is 62 ohm. Can i set my STX II card gain to 64-300 ohms without damage it ? The <64 gain set is ok, but sometimes i like to really push volume ^^