[ostewart]

Nice pics!

 

[wolfetan44]

Quote:

Nice pics!

Thanks!

 

[leadbythemelody]

Nicee...

 

[wolfetan44]

Quote:

Nicee...

? Would you like a better description?

 

[leadbythemelody]

Sure!

 

[wolfetan44]

Quote:

Sure!

So what was the rolling of the eyes for? 
 
Anyways, the O2 drives them at 25%, so power is very, very good. The O2 is very powerful for how small it is. The O2 with the HD650 is great, wish it were a bit warmer though, as I feel it would make the HD650 more romantic, which is what I love about the HD650. The O2 is a bit cold, but is still an amazing, cheap amp. At all costs, if you can get a tube amp, get one.

 

[xnor]

Just make a simple adapter to raise the output impedance. Total cost around 5 bucks and should add warmth, or just use an EQ for more flexibility.

 

[leadbythemelody]

I wasn't rolling my eyes but looking up and daydreaming

haha. My O2 and Sennheiser HD650's are gonna arrive around next week, can't wait! But what do you mean by the O2 sounding cold? Does the HD650's sound cold as a result of pairing it to the 02 amp?

 

[leadbythemelody]

Will using a Copper LOD also add warmth to the sound?

 

[xnor]

No.
 
The HD650 is 'warm' to begin with so you should be fine. Otherwise try #307.

 

[leadbythemelody]

Okay appreciate the advice!

 

[wolfetan44]

Quote:

Just make a simple adapter to raise the output impedance. Total cost around 5 bucks and should add warmth, or just use an EQ for more flexibility.

Not sure I'm so qualified..

 

[JakeJack_2008]

Quote:

I enjoy reading about more happy owners of the O2, it's still my reference amp, and nothing's beaten it yet!

Yes, count me in. I am super

 happy with my silver

 JDS Labs  O2 and ODAC as two separates & the DT 880 (250 Ohm).
 
By the way, is it worth to upgrade the stock FiiO line-out/line-in cable which connects the ODAC and  O2?
I'd be willing to pay under $30 if I can hear a noticeable improvement in sound.

 

[skamp]

By the way, is it worth to upgrade the stock FiiO line-out/line-in cable which connects the ODAC and  O2?

Not even a little bit (as far as sound quality is concerned).

 

[JakeJack_2008]

Quote:

Not even a little bit (as far as sound quality is concerned).

Thanx.
 
 
Apropos the USB cable with a bead  which JDS Labs supplied with the ODAC.
 
 
I've read on this site that the quality of USB cables matters and here's why.
The timing when sending those digital files (0s and 1s) is critical and matters.
Then another expert said: a DAC working in an asynchronous mode using buffers, etc.
ensures perfect timing and cheap stock USB cables are enough.
Then yet another expert said: those buffers are not perfect, etc.  ..
... And then I've stopped reading because I was very confused.
 
Now, the ODAC is not an asynchronous DAC.
So, to ensure a perfect timing while sending those 0s and 1s perhaps the ODAC might benefit

 from
better and more expensive 

USB cables?