[ScoHo]

I'm looking to upgrade my headphones and currently leaning toward a HiFiMan HE-500/JDS Labs Objective2 combination (or possibly Sennheiser HD650).  Any opinions on this combo?  My source would be an iPod Classic (5th gen) or possibly a PC or tablet.
 
I see that when ordering an Objective2, you have your choice of 2.5x & 6.5x, 1.0x & 3.5x or 1.0x & 2.5x.  Which would be the best choice?
 
I don't currently have a DAC, but will probably get one eventually.

 

[davidsh]

It seems to me that many are saying the O2 doesn't sound good with HE-500. I can't really see why that should be the case.

 

[Harath]

I built my o2 from parts and use it with my HE 500 and I enjoy them. I listen to primarily rock and blues.
 
The 2.5x setting will keep you around the 9 to 10 o clock area, I use 2.5 and 6.5.

 

[ScoHo]

  I built my o2 from parts and use it with my HE 500 and I enjoy them. I listen to primarily rock and blues.
 
The 2.5x setting will keep you around the 9 to 10 o clock area, I use 2.5 and 6.5.

 
What do you use as your source?  And do you use a DAC?

 

[cel4145]

I would contact JDS Labs. I feel certain that they would be able to advise you

 

[Harath]

   
What do you use as your source?  And do you use a DAC?

I typically use CDs, and I use an o2/odac. I don't know how much of benefit the odac is versus others DACs, but I like the pair.