Haven't really wrote much about it, but some of us did change the caps. Below is mine, with a swappable socket. If you are changing from the big red Wima to the included Tonerex (or most electrolytic on that matter), I will say the first thing to notice is probably the smoothness. Wima and most film caps tend to sound sharper and more edgier. I am using Silmic II most of the time - as my opamp + buffer choice usually is aiming toward transparency, I think the Silmic II balances it back slightly with its more musical (yet still mostly neutral) and relaxing sound.
Many thanks for the detailed presentation. I have ordered many components but nothing received yet. So I tested today to change the stock capacitors but I was really disappointed. The music has lost the room information, it sounds dull. So I soldered both stock capacitors to a bypass configuration. I need to use thin cables to do it. The result is pretty good. Very clear room information and a strang and black bass.
I use it with LME49600 + AD8620.
In the next few days I await the delivery of my orders. I ordered the silmic caps, the MUSES01/02, the HA-5002 (named as HA9P5002-5Z) and the brown dog adapters. Most of all will be here very fast but the HA-5002 has 13 weeks delivery time.
I will share my experiences when the first parts are placed in my E12DIY.
Edit: It sounds very well with the AKG K3003i. And only with the AKGs.
My Audeze LCD-2 sounds not really bad, but it is far from good in this combination. This is not important for me because I want to use the E12DIY only with the AKG headphones.
Edit again: I solded it back. Only the Wima capacitors are working. That makes a better room impression. More and better high frequency.
Edited by Audio Reiner - 5/14/14 at 3:25pm