Ultimate Outlet on ML Request panels

I'm looking to put a UO with upgraded pc's on my panels. My thought is to only put the standard version in line or do I need the HC? Any thoughts on the subject?
Also I was thinking the PS Audio Prelude pc would be fine or should I use the Plus instead.
Any help would be great.

Thanks Jim
Get the HCUO or even better...the Gain Cell. YOu could probalby run both off a PP300 to tailor the sound.