[faisal2003456]

RCA plugs usually don't have a switch unlike the 1/8" plug...

Joachim

Thanks, I meant if you plug headphones in will the RCA outs disengage.

 

[liamstrain]

Thanks, I meant if you plug headphones in will the RCA outs disengage.

 
They do not on my JDS build. 

 

[ethan7000]

Got a standalone ODAC from JDS up for sale if anyone is looking, thanks.

 

[glunteer]

Guys,
 
I tried putting in my hd 600 out of ODAC and for my surprise the sound out loud, is that right?
 
It was not for the sound is low, because the ODAC has no amplification?
 
Thanks

 

[oryan_dunn]

  Guys,
 
I tried putting in my hd 600 out of ODAC and for my surprise the sound out loud, is that right?
 
It was not for the sound is low, because the ODAC has no amplification?
 
Thanks

Yep, it could be loud on headphones:
http://en.wikipedia.org/wiki/Line_level
 
Though, others may correct me, I don't think there is much current, so it may not sound very good.
 

Different make and model headphones have widely varying impedances, from a common low of 32 Ω to a few hundred ohms; the lowest of these will have results similar to a speaker, while the highest may work acceptably if the line out impedance is low enough and the headphones are sensitive enough.

 

[castleofargh]

  Guys,
 
I tried putting in my hd 600 out of ODAC and for my surprise the sound out loud, is that right?
 
It was not for the sound is low, because the ODAC has no amplification?
 
Thanks

it's normal that the sound is loud out of any DAC, they usually provide close to 2V for an amp input of a few thousand ohm.
now why you shouldn't do that:
-the output of a DAC is usually around 100/150ohm and I have no idea how the ODAC behaves when plugged into a load as low as a headphone.
-you'll have to reduce the volume with your computer, even if you're using 24bit output in foobar, you might very well end up crushing the least significant bits of your music.

 

[glunteer]

  Yep, it could be loud on headphones:
http://en.wikipedia.org/wiki/Line_level
 
Though, others may correct me, I don't think there is much current, so it may not sound very good.
 

 
 

 
it's normal that the sound is loud out of any DAC, they usually provide close to 2V for an amp input of a few thousand ohm.
now why you shouldn't do that:
-the output of a DAC is usually around 100/150ohm and I have no idea how the ODAC behaves when plugged into a load as low as a headphone.
-you'll have to reduce the volume with your computer, even if you're using 24bit output in foobar, you might very well end up crushing the least significant bits of your music.

 
 
Thanks for help oryan and castle

 
-------------------------------------------------------------------------------------
 
Excuse me, but I have one more question ...

When I'm listening to music Birdy - Wings, at the beginning of the song has a distortion (0,00 to 0,27 sec), I do not know if it's my problem O2 or ODAC, or is a badly recorded music.
 
***UPDATE: I'm using this power supply with my O2, this is what is distorting the sound?
 
Broadxent AA-1675 (http://www.emtcompany.com/broadxent-aa-1675-ac-power-supply-charger-adapter/101318691.html)

 

[Dark_wizzie]

Question: Regarding the line out of Odac... is that the "input" hole on my Mayflower o2/odac? What is it used for exactly?

 

[castleofargh]

  Question: Regarding the line out of Odac... is that the "input" hole on my Mayflower o2/odac? What is it used for exactly?

to make it simple, without usb that plug uses only the O2, and with USB it uses only the ODAC.
no USB it's an input and you plug another DAC into the O2, with USB you must use it as an output and it uses the ODAC to go into another amp. your choice.

 

[bada bing]

   
 
 
 
Thanks for help oryan and castle

 
-------------------------------------------------------------------------------------
 
Excuse me, but I have one more question ...

When I'm listening to music Birdy - Wings, at the beginning of the song has a distortion (0,00 to 0,27 sec), I do not know if it's my problem O2 or ODAC, or is a badly recorded music.
 
***UPDATE: I'm using this power supply with my O2, this is what is distorting the sound?
 
Broadxent AA-1675 (http://www.emtcompany.com/broadxent-aa-1675-ac-power-supply-charger-adapter/101318691.html)

 
That power supply is AC input, 16V DC output. According to the online specs:

1. Input: 120V AC 60Hz 17W
2. Output: 16V DC 750mA

That won't work at all for the O2. It requires an AC output to the O2. ~16VAC give or take.

 

[glunteer]

   
That power supply is AC input, 16V DC output. According to the online specs:

1. Input: 120V AC 60Hz 17W
2. Output: 16V DC 750mA

That won't work at all for the O2. It requires an AC output to the O2. ~16VAC give or take.

 


 

 
I will buy a new power supply to see if it improves, will give my feedback here on the topic.
 
Thanks so much

 

[mstrmind5]

Hi all,
 
Can the o2+odac combo be safely used with a usb hub?

 

[Dark_wizzie]

Sure? I don't get why it'd be unsafe. 

 

[castleofargh]

  Hi all,
 
Can the o2+odac combo be safely used with a usb hub?

it might not give the ultimate performance if other USB devices use a lot of power, but there is no guaranty that your computer would yeld better result if the devices are plugged into another USB slot on the computer instead of being linked to the hub. if you're afraid or if you actually hear something "wrong" for some reasons, maybe a powered hub could actually improve things by delivering the right voltage that maybe your computer doesn't really offer. or the power supply of the powered hub could be the faulty one and add noises to the odac...
if you plan on being paranoid, the possibilities are endless ^_^.

 

[adydula]

It can be used with or without a USB hub.
 
Alex