[ostewart]

Managed to A/B the C5D and O2 with the HD700 for @Phredd 
 
Not a scientific blind test, nor could I perfectly match the volume. I used my iPod Classic as the source so the C5D was just used as an amp, the O2 also.
 
Silver LOD to both amps, silver 3.5mm-6.3mm adapter.
 
Tracks Used: Silverstein - Discovering The Waterfront (320kbps mp3) and Deolinda - Passou Por Mim e Sorriu (live, FLAC)
 
The O2 has the upper hand in control and soundstage, the C5D sounds a tiny bit fuller and a little more intimate. The difference is not big, the C5D can drive the HD700 easily. Both amps sound great, C5D is excellent for on the go, the O2 perfect for home.
 

 

[Phredd]

  Managed to A/B the C5D and O2 with the HD700 for @Phredd 
 
The O2 has the upper hand in control and soundstage, the C5D sounds a tiny bit fuller and a little more intimate. The difference is not big, the C5D can drive the HD700 easily. Both amps sound great, C5D is excellent for on the go, the O2 perfect for home.

 
Thanks ostewart!
 
I appreciate that you took the time to compare them. I decided to get the O2+ODAC. Besides your comparison, so many good things been said about it. Plus the C5D is difficult to use all day in the house. I can't keep it charged, because the digital in is the same as the charging port.
 
So, the O2 will be at my desk and I'll use the C5D for everywhere else.

 

[ostewart]

Great idea, I think thats the best thing really, O2 for home C5/C5D for portable. Then you have a great setup for everything/

 

[headwhacker]

   
Plus the C5D is difficult to use all day in the house. I can't keep it charged, because the digital in is the same as the
 
 

You can still charge C5D while it's hooked up to a USB source. Just turn the switch at the back to charge.
 
On the road, just turn it off otherwise it will drain power from your source.

 

[Phredd]

 
You can still charge C5D while it's hooked up to a USB source. Just turn the switch at the back to charge.
 
On the road, just turn it off otherwise it will drain power from your source.

 
I didn't even think about charging it from my iPhone. I'm not sure that would help anyway. I may just end up with a dead amp and a dead phone.
 
What I meant was, I can't charge the C5D from a power adapter while the USB is connected to the iPhone's digital out.
 
I'm not faulting the C5D. It's made as a portable and it's great for when I'm not at my desk.

 

[luisdent]

  Managed to A/B the C5D and O2 with the HD700 for @Phredd 
 
Not a scientific blind test, nor could I perfectly match the volume. I used my iPod Classic as the source so the C5D was just used as an amp, the O2 also.
 
Silver LOD to both amps, silver 3.5mm-6.3mm adapter.
 
Tracks Used: Silverstein - Discovering The Waterfront (320kbps mp3) and Deolinda - Passou Por Mim e Sorriu (live, FLAC)
 
The O2 has the upper hand in control and soundstage, the C5D sounds a tiny bit fuller and a little more intimate. The difference is not big, the C5D can drive the HD700 easily. Both amps sound great, C5D is excellent for on the go, the O2 perfect for home.
 

 
Sexy.  How would you compare the hd700 to the hd600/650 if you've heard them?  I find the hhd600 sounds excellent from the C5.  No problem powering them, and the output quality is superb.

 

[ostewart]

I'm actually not a fan of the sennheiser line-up apart from say the HD25-1 II
 
Too warm and laid back for my tastes, much prefer my German Maestro GMP 400.
 
The HD700 is similar to the HD650 but slightly more refined and comfortable. Wider soundstage too. Can't comment much more as I don't have them here to A/B

 

[luisdent]

I'm actually not a fan of the sennheiser line-up apart from say the HD25-1 II

Too warm and laid back for my tastes, much prefer my German Maestro GMP 400.

The HD700 is similar to the HD650 but slightly more refined and comfortable. Wider soundstage too. Can't comment much more as I don't have them here to A/B

That's how i hear them too. Very accurate and flat overall, but on the warm, laid back side. The c5(d) sounds so good with any phones, but i love using flatter phones with it, because things sound so reference.

 

[ScarboroSlim]

   
 

Thanks! 

 
I grabbed the Zelda image from someone who previously uploaded it for their engraving and decided to combine it with the Soul Eater image I used for my V-MODA Crossfade M-100's.
 

 
Very clean! I recently got a red C5, similar engraving...

 

[molika]

is there a silicone case for the c5/c5d.

 

[BB 808]

is there a silicone case for the c5/c5d.

No

 

[FuzzHead]

but what about the sennheiser momentum? Im interested in that particular headphone, which states it has max power handling of 200 mW how does this amp compare with that headphone?

 

[molika]

thx. would be nice to have one to protect it. how easy is it to change the aluminum case. I'm planning to use 3m dual lock to attach the amp to my dx50 and I'm not sure how easy is it to remove the dual lock later on wehen I don't need it any more.

 

[ostewart]

Dual lock comes off easily. Leaves no marks.

This amp will be fine with the momentum but the momentum doesn't gain much with amping.

 

[headwhacker]

I have been using dual lock to stick my amps at the back of DX50. They should come off clean and leave no marks at all.