Simply having a slightly more expansive version with say, sturdier jacks, might be worth it

Natural selection will work that out for us. It's fine.

A quick question In another post, the JND for jitter is said to be 20ns. ODAC designer He-who--must-not-be-named measured jitter with a FFT method and gave dB as the unit. Do I still use the"  < - 80dB - is - not - audible"  rule with that or is it a totally different thing we are talking about?

Yeah I had the hissing and the high pitched EM noise from other components when I was using onboard soundcard. Usb dac solved it completely.

As an owner, I do wonder if the combo would break down soon.

What were the differences that you heard?

    Just saw that the o2 amp is turned to max vol... I think I saw the HP in question is ~100 db/ mW. You shouldn't need that much volume really.

http://apple.stackexchange.com/questions/57186/what-is-the-impedance-of-the-line-headphone-jack-on-macbook-pro-retina Impedence mismatch?

Must be deus ex machina, removing random jitter and all that. A genuine question: I get very audible noise when I was still using a sensitive 32ohm headphone plugged straight into my computer's onboard soundcard when NO music is playing. Was I listening to the noise inherent in the audio chip...

It seems that the results shows that people can notice 8db of DR difference instead of 2....?

It is such a shame. Might be those punks who put big ass radios on their bikes are to be blamed...(just kidding)  

Got a pair of hd600  to go with the combo today. I listen mostly to metal music. Even with their ridiculously compressed albums, the songs benefits from the neutrality around the vocal range of the HP and better instrument separation. (Oh, and bass extension balah blah). I have some nicely...

I'm  a bit torn between buying a HD600 or HD650. I think I might go after hd600 since I usually listen to metal or similar genres...

what i gathered from your link is that, if the SR is above a certain value, it doesn't do anything for the signal. Hence the question, what is enough? O2 designer quote 0.2 uV/ Vrms, though I have no way of verifying it, nor the knowledge to

What does higher slew rate translate into sound? Faster... response?

http://en.wikipedia.org/wiki/Absolute_phase Quite informative.

I am in complete lost after reading the article. I fail to understand the last bits. Isn't the  Fletcher test testing for any phase difference between two speakers? Regarding the Haas effect, if you sit in front of one speaker, the other speaker is probably further from your head, hence a...

works better if you have an audiophile nuclear reactor to put a few megavolts through the air...

I agree. With He-6 , I have seen the match showing that O2 can't properly drive it. LCD-2 though, maybe my math is off

I am not a fanboy of the O2 amp . I know there are things that o2 wont be able to do obviously. I am just looking into the numbers, sort of as an exercise for me to better understand those spec To reach 110 SPL, I calculated that @ 50 ohm, 2.99 V rms is required and 447 mW is the power...

is your v800 much better than the odac?

Not to be challenging you in a hostile way or anything, I am simply curious and I hope someone could shred some light on this problem. You see, theoretically, there should be sufficient power for the headphone. Yet, you find the power lacking. What might be the possible reasons behind this...

What is the AC adapter you are using? I heard that the 110v ones out there arent enough for high gain mode.

Please do make a post on how it works out

What is bloating sounding?