I once upon a time owned an early zen amp, the Se84b.  I played it through a Vandersteen 1C and was floored by it's purity but most of all it's 3d sound.  The Vandersteen was phase and time coherent and showed off this zen amp.  I never forgot that sound.
20 yrs. has gone by and I recently purchased a kit built Se84C.  It sounded very very nice but I wanted what I had listened to so many years ago, I guess partly for nostalgia and partly because from memory I thought the other amp may have sounded a little different. So I rebuilt the power supply to the old zen's specs, the Se84b.  
I couldn't be happier. That old sound is back. It's the best sound that I have ever heard I believe and probably ever will hear.  I will try to post a pic for others if they wish to try the mod.  
The change in the power supply is 32uf>1k>32uf//32uf>10k//15k>32uf.  The slanted lines mean in parallel with.  I used 2 Modulus Amplification can capacitors 2x32uf each. Those were the only changes the rest of the amp remains the same.

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Thanks!  I am a big fan of this elegant design yours.  It just lets music pass right through it. I wish I had the option of the old LCR can caps but as you know they haven't been made in years. LCR would make a killing with guitar and hifi amp builders if it started making can caps again.

Well it is hard to say since I haven't listened to the amp with the LCR caps in 20 years .  But if I had to guess I would think the LCR was slightly more resolved. Just a guess. The Modulus caps were chosen because they are always musical and natural(not audiophile) sounding.  They are quite resolved just not unnaturally so.  I've compared a lot of stuff that's out there.

I actually don't really post anywhere.  I used to post on AA a long time ago.    I only started posting here because of this awesome sounding amp.  I think I am a Decwarite?