[vantt1]

I suppose no one cares though. 

 

[nikongod]

Looks neat. 
Did you do it without changing the internal volume (cubic inches) or shapes of the cups? 

 

[vantt1]

The internal volume stayed the same - the external volume on the battery side increased a bit though. The cover protrudes by about 3 mm.

 

[Claritas]

 
I suppose no one cares though. 

 
Actually, it's pretty effin' awesome. How does it sound?

 

[BadMoose]

This is awesome! I've been thinking about doing something similar to my pair of 439's, though also implementing wireless through a bluetooth receiver. That done, they might replace my Crossfade LP's as typical walking-around-town headphones.

 

[vantt1]

   
Actually, it's pretty effin' awesome. How does it sound?

Well, it sounds more powerful, to start off with. It also has more bass, because the circuit is from a pair of Beats Studios.
 

  This is awesome! I've been thinking about doing something similar to my pair of 439's, though also implementing wireless through a bluetooth receiver. That done, they might replace my Crossfade LP's as typical walking-around-town headphones.

Similar to this?

 

[nikongod]

  Well, it sounds more powerful, to start off with. It also has more bass, because the circuit is from a pair of Beats Studios.
 

 
No love for building your own circuit? You could totally do a barebones Cmoy that size.   
 
Does the amp board from the Beats have a bass boost? That is pretty interesting to learn.