After some upgrades, where is the weak link

Have just finished a couple upgrades, and would like your opinions on where the weak link in the system is now...details:

Levinson 390s player (digital out to processor)

Levinson 380s preamp

Levinson 360s processor

Levinson 436 monoblocks (balanced connection from the preamp, and they rest on Core Designs amp stands)

Revel Salons

Martin Logan Depth (single ended connection from preamp)

RPG 600 power conditioner--amps plugged directly in the wall (with Porter Pots cryo's outlets) and preamp, cd player, processor and sub plugged into the power conditioner

MIT AC1 power cord for the cd player

Kimber cable XLR from processor to preamp

Kimber cable PK-10 gold power cords for the amps

Staightwire (not sure of model, but their top of the line) biwire to the speakers (around 3 foot runs)

System geometry can be seen on my system description page.

It sounds pretty good to my ears--but interested in your opinions on the weakest link...

Cheers,

Mitch