[chuck8403]

  Is there any downside to having a 1/4in output on the ODAC/O2, like 1/4in adapters adding distortion?

I personally don't believe that it adds any distortion. The 1/4" adapters stick out less than the 1/8" adapters.

 

[adydula]

No. Not really...
 
A.

 

[Draulius]

Was thinking about using an adapter and connecting to a 1/4 in jack for extra sturdiness, instead of the traditional 3.5mm. Should I go for it?

 

[inseconds99]

  Was thinking about using an adapter and connecting to a 1/4 in jack for extra sturdiness, instead of the traditional 3.5mm. Should I go for it?

Yes

 

[dtmhtk]

  Was thinking about using an adapter and connecting to a 1/4 in jack for extra sturdiness, instead of the traditional 3.5mm. Should I go for it?

I would personally buy a Grado Mini Adaptor because I think it's easier to adapt down than up. However, it depends on how many headphones you have with quarter inch jack.

 

[chuck8403]

 

Agree with this adapter. I use the Sennheiser version.

 

[Draulius]

 
I would personally buy a Grado Mini Adaptor because I think it's easier to adapt down than up. However, it depends on how many headphones you have with quarter inch jack.

 
None, I would be changing to a 1/4 in jack just for a sturdier connection. The only headphones I have are 3.5in native. I have an adapter for every one that I would have to use.

 

[diamondears]

I've read way back a comparison of portable amps with the O2 as the reference. Which portable amp came closest or equal to the O2? Anybody remembers?

 

[headwhacker]

I've read way back a comparison of portable amps with the O2 as the reference. Which portable amp came closest or equal to the O2? Anybody remembers?

If you are talking about the comparison published on inearmatters.net, I think the leckerton amp is the closest.

 

[Draulius]

Is it normal for an O2/ODAC Combo to make a popping sound through the headphones when the power button is pressed?

 

[diamondears]

If you are talking about the comparison published on inearmatters.net, I think the leckerton amp is the closest.

Thanks. Yeah I think that's it. Do you agree?

 

[headwhacker]

Thanks. Yeah I think that's it. Do you agree?

Yeah I sold all my portable amps except for the UHA-6S MKII.

 

[HotIce]

Is it normal for an O2/ODAC Combo to make a popping sound through he headphones when the power button is pressed?

 

The O2 circuitry has no protection for that, so yes, it is expected.
Other amps, like the E12 (or the C5 mega clone of it) just as example, have delayed activation relays to protect against that.
No "pop" in the headphone, but little "click" in the amp.

 

[MrMateoHead]

  I just got my ODAC/O2 in the mail. I set it up using the provided cable and power jack, then plugged my headphones in. I restarted my computer and went into my sound settings to make sure everything is in working order, which it should be. But when I play any audio it only comes out on one side of the headphones, the left. I checked the balance settings but both L and R are at 100.
 
Anyone know what the issue might be?

wiggle the connectors gently (at input / output) and then try the headphone itself. If that don't work disconnect and re-connect. If that don't work, try other 3.5mm cables / headphones.
 
I find the 3.5mm connectors are a little cheap and I often have the L channel cut out and have to give mine a little wiggle every now and again.

 

[sanakimpro]

Does anyone have the O2/ODAC combo and the portable O2 (with batteries)? Is there a difference in the power output ? I recall reading that the gain on O2 with batteries is limited by the maximum voltage of the batteries.
 
Currently with the O2/ODAC driving my beyer T1 on 2.5x gain, the dial is usually at 12 o'clock or 1 o'clock, and 3 o'clock on softer tracks (recorded in 1990s? like my Queen's Greatest Hits 1993 Remaster).
 
Will the O2 with batteries still drive the beyer T1 (or HD 600, DT 990/600) properly?
Thank you.