O2 AMP + ODAC

[chrislangley4253]

  Don't forget the warm glow imparted by the ODAC / O2.
 

 

  Trollololol?

 
 

   
What are you trying to infer?

 
I thought you were joking.
 
I've never heard the ODAC+O2 described as having a "warm glow".
 
It's cool if that's the way you hear it, but I think most people describe it as pretty transparent.  

 

[blse59]

What do you think of keeping a cable like this plugged in to preserve the life of the headphone-out jack?
 
http://www.amazon.com/dp/B00GZQWI6C/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=1FCJ214026JGQ&coliid=I3D8OO5EGSGB3W&psc=1
 
I'd rather have an adapter to keep plugged in rather than deal with a long cable. Any recommendations?

 

[Solrighal]

I thought you were joking.

I've never heard the ODAC+O2 described as having a "warm glow".

It's cool if that's the way you hear it, but I think most people describe it as pretty transparent.  

Sorry, I was meaning the warm glow you get from not buying the mainstream options out there and going with something actually proven to be transparent.

 

[chrislangley4253]

  What do you think of keeping a cable like this plugged in to preserve the life of the headphone-out jack?
 
http://www.amazon.com/dp/B00GZQWI6C/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=1FCJ214026JGQ&coliid=I3D8OO5EGSGB3W&psc=1
 
I'd rather have an adapter to keep plugged in rather than deal with a long cable. Any recommendations?

I do this with a similar cable and or sennheiser 3.5mm to 1/4" pigtail adapter. I secure the cable/adapter to my desk with masking tape. Can't tell you how many times it has probably saved my output jack.
 

 

 
 

Sorry, I was meaning the warm glow you get from not buying the mainstream options out there and going with something actually proven to be transparent.

Hah, easy misunderstanding. 

 

[blse59]

  I do this with a similar cable and or sennheiser 3.5mm to 1/4" pigtail adapter. I secure the cable/adapter to my desk with masking tape. Can't tell you how many times it has probably saved my output jack.

 
Thanks! I think I might go that route.

 

[castleofargh]

I've stuck the o2 to the table (with 2 little straps you use to hang stuff without piecing the wall). and the O2 is facing the direction I take when I go out of the room, so the only result of me being an idiot(and it happened quite a few times already) end up with the headphone unplugged on a straight axis.
but I can certainly understand the concern.

 

[schmalgausen]

I've built my O2 with the Desktop kit and don't have any troubles with the weak output.

 

[Solrighal]

  "and it happened quite a few times already..."

 
Welcome to my world

 

[Arm3nian]

Would 1x/2.5x gain be enough for o2+odac or should I go for 1x/3.5. Using hd650s. Thanks

 

[headwhacker]

Would 1x/2.5x gain be enough for o2+odac or should I go for 1x/3.5. Using hd650s. Thanks

 
Should be enough but I would go with 1x/3.5x. This would make the maximum power output of O2 available when you need it.

 

[chrislangley4253]

Would 1x/2.5x gain be enough for o2+odac or should I go for 1x/3.5. Using hd650s. Thanks

I have mine at 1x/2.5x and I almost always find it enough.. But, I don't think I would mind having 1x/3.5x. 

I usually stay on 1 unless I'm using a source other than my odac.. such as a sansa clip. At such times, I wish I had more than 2.5x on very quiet recordings.
 
1x/3.5x sounds pretty choice to me, I wish mine was like that.

 

[Solrighal]

I have gains of 1x / 3x and rarely use the higher gain.

 

[diamondears]

What's the ideal max volume pot position on the O2? If 5 o'clock is the max, is 2, 3 or 4 ideal with still headroom left for dynamic peaks? Been reading Nwavguy's blog site and he didn't mention it (I might have missed it).

 

[Arm3nian]

IIRC the best position is 12 o'clock.

Can anyone find how much power the o2 puts into 300ohms? It would make the gain decision much easier, but taking a guess with 97db/mw the hd650 has you should be able to reach peaks of 120db. Again that is peaks, so if a track is mostly -30 db, then unity gain should be enough. I can see how more gain might be useful in some situations but 3.5x seems ear damaging.

 

[Xenophon]

IIRC the best position is 12 o'clock.

Can anyone find how much power the o2 puts into 300ohms? It would make the gain decision much easier, but taking a guess with 97db/mw the hd650 has you should be able to reach peaks of 120db. Again that is peaks, so if a track is mostly -30 db, then unity gain should be enough. I can see how more gain might be useful in some situations but 3.5x seems ear damaging.

P=U^2/R assuming a purely resistive load (which is a gross simplification with most headphones).