Does Anyone Offer Audio Mods For A Mac Mini?

Wondering why a high end power supply makes any difference assuming one is using a USB-SPDIF converter which runs on a dedicated power supply or battery like some high end models do these days. I always thought the only thing that benefits from clean power is the digital output circuitry and clock but maybe I'm wrong??

Just started using a 2009 mini as a music transport and would like to tweak it a bit.

Duo - get a new Hynes supply for your Mini, put a SSD and 8 gigs DRAM in it and do the tweaks at: iTunes iBooks - "audio optimization guides"

This is reference quality and has earned several best of shows using Amarra.

Steve N.
Empirical Audio

Battery power for the Mini is not as good as a fast responding linear supply. Digital needs this fast response. I have tried LI battery on both Mini, DAC and USB converters. Great for analog, but not digital IME.

Steve N.
Empirical Audio

Thanks Steve. This does not answer my question. Already installed a SSD but still running on 2 GB of RAM.
Using Auidirvana which supposedly does all the audio optimation of OSX. Do I still need this ibook?

I Just bought a linear PSU from Clones audio for my mac mini and i'm very pleased with the result.
When I installed an SSD sound wise nothing happen.
But with the PSU it's a serious step to the graal.