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O2 AMP + ODAC - Page 106

post #1576 of 3666

I bought a o2 ... that will be good?

My setup looks like this: asus xonar dx> o2> dt 770 80 ohm

 

thx :)

post #1577 of 3666
Quote:
Originally Posted by glunteer View Post

I bought a o2 ... that will be good?

My setup looks like this: asus xonar dx> o2> dt 770 80 ohm

 

thx :)

 

great setup.  i've ran Titanium HD > O2 > DT 770 80ohm and it sounds fantastic.

post #1578 of 3666
Quote:
Originally Posted by boombobby289 View Post

How is your setup for ODAC and E12?
Do you play them with iDevices like iPad?

 

I use them with Foobar on Windows 7.

post #1579 of 3666
Quote:
Originally Posted by Porter1 View Post

 

great setup.  i've ran Titanium HD > O2 > DT 770 80ohm and it sounds fantastic.


I'm glad to see that

 

 

EDIT:

 

would be nice to buy an ODAC combo? and sell my asus xonar dx?

I have the DT 770 (as I said), and I use a m-audio AV40


Edited by glunteer - 8/3/13 at 12:28pm
post #1580 of 3666
Quote:
Originally Posted by boombobby289 View Post

Quote:
Originally Posted by miceblue View Post

Only the iPad is able to use an external DAC at will with the Camera Connection Kit. Other iDevices require a special "Apple certified" DAC....and those are mighty expensive.

 

You can use an external amp with any iDevice as long as you:

  1. Have a non-jailbroken iDevice
  2. Use a "Line-Out Dock" connector such as the FiiO L9

Is there any other cheaper way to bypass the internal DAC of iDevices yet to have portability ?
I don't mind to use power bank or battery pack.

 

No, for a number of reasons. First is that they have to get permission from Apple, to ensure they aren't making rubbish which causes iDevices to crash or otherwise malfunction. Secondly, the reason companies do that is because they wish to make a DAC that is better than the quality of what is in an iDevice (which is already pretty good, all things considered), and that isn't cheap.

post #1581 of 3666
Quote:
Originally Posted by Currawong View Post

 

No, for a number of reasons. First is that they have to get permission from Apple, to ensure they aren't making rubbish which causes iDevices to crash or otherwise malfunction. Secondly, the reason companies do that is because they wish to make a DAC that is better than the quality of what is in an iDevice (which is already pretty good, all things considered), and that isn't cheap.

 

Or three, because the only true reason, is most likely that Apple wants companies to pay a licensing fee, so they lock it down. It's always about the $$$. 

post #1582 of 3666

#3 makes the most sense to me.

 

You can still bypass the iPad's DAC with the Camera Connection Kit and the ODAC is compatible.

post #1583 of 3666
Quote:
Originally Posted by miceblue View Post

#3 makes the most sense to me.

 

You can still bypass the iPad's DAC with the Camera Connection Kit and the ODAC is compatible.

But not the iphone 5 with the camera kit? That's strange.

post #1584 of 3666
Odac only works with iPad camera kit into a power USB hub
post #1585 of 3666
Quote:
Originally Posted by bhazard View Post

Quote:
Originally Posted by Currawong View Post

 

No, for a number of reasons. First is that they have to get permission from Apple, to ensure they aren't making rubbish which causes iDevices to crash or otherwise malfunction. Secondly, the reason companies do that is because they wish to make a DAC that is better than the quality of what is in an iDevice (which is already pretty good, all things considered), and that isn't cheap.

 

Or three, because the only true reason, is most likely that Apple wants companies to pay a licensing fee, so they lock it down. It's always about the $$$. 

 

It is not just the licence, as companies have to implement it perfectly or Apple will say "no". Companies like Centrance and Cypher Labs have to go to a HUGE amount of trouble to get something working that Apple will approve. Apple makes the dollars because they design reliable products. To maintain that reliability they are strict. In their (and my) experience, customers will blame Apple for problems, even if their product isn't obviously the cause. Warranties and service eat up huge amounts of profit.  So you are right, but not quite for the reason you think. smile.gif

 

boombobby289: Here's what I reckon though: Use the O2 with your iPhone or iPod. Be happy. Sometime, if you have the chance, see if you can't compare it to a Centrance M8 at a meet with very good headphones and your own music. Maybe you'll want to upgrade, maybe not. smile.gif

post #1586 of 3666
Quote:
Originally Posted by Currawong View Post

 

It is not just the licence, as companies have to implement it perfectly or Apple will say "no". Companies like Centrance and Cypher Labs have to go to a HUGE amount of trouble to get something working that Apple will approve. Apple makes the dollars because they design reliable products. To maintain that reliability they are strict. In their (and my) experience, customers will blame Apple for problems, even if their product isn't obviously the cause. Warranties and service eat up huge amounts of profit.  So you are right, but not quite for the reason you think. smile.gif

 

boombobby289: Here's what I reckon though: Use the O2 with your iPhone or iPod. Be happy. Sometime, if you have the chance, see if you can't compare it to a Centrance M8 at a meet with very good headphones and your own music. Maybe you'll want to upgrade, maybe not. smile.gif

It would be nice to think that way, but it is simply not true. The same could be said for the $30 lightning adapters and cables. Is it truly $30 worth of adapter? Once it was cracked, they were easily found for $5-9 in 3 packs. If the DAC bypass was cracked, they would have no say in it either. 

 

They make the $ because they have people like yourself fooled that their products are any more reliable than their competition. Allowing us to plug into the DAC we wanted would give most of us an even better experience than the "Apple certified" ones.

post #1587 of 3666

Can i use the headphone out of O2 (as gain 1x) as a preamp ? Cause the output of ODAC feed my other headphone amplifier is too loud for my sensitive headphone (like AD v.v...). So im willing to use it as preamp but not sure if it will ok ?

post #1588 of 3666

Yes, you can use it for that purpose without problems. Or just drive the headphones with the O2 (which works well with sensitive/low impedance headphones and IEMs) if the other amplifier has a high gain. Another solution is to reduce the volume on the PC, with 24-bit volume control, you can attenuate by 10 dB and still have better than 100 dB dynamic range on the ODAC.

post #1589 of 3666
Quote:
Originally Posted by stv014 View Post

Yes, you can use it for that purpose without problems. Or just drive the headphones with the O2 (which works well with sensitive/low impedance headphones and IEMs) if the other amplifier has a high gain. Another solution is to reduce the volume on the PC, with 24-bit volume control, you can attenuate by 10 dB and still have better than 100 dB dynamic range on the ODAC.

 

Only by 10 dB ? confused_face.gif (with music from CD i think that we have more headroom than just 10 dB on 24 bits output) .


Edited by HaVoC-28 - 8/6/13 at 2:51am
post #1590 of 3666
Quote:
Originally Posted by HaVoC-28 View Post

Only by 10 dB ? confused_face.gif (with music from CD i think that we have more headroom than just 10 dB on 24 bits output) .

 

The ODAC is not capable of the theoretical dynamic range allowed by 24 bit samples, so it is 111 (from measurements) - 10 = 101 dB. In practice, more attenuation would likely still not produce audible noise, but 10 dB should be a "safe" amount even with high quality recordings.

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