2 chassis grounding

[glen]

I am building an SET amp with a separate chassis for the PS. The complication is that it has a separate Power transformer and separate SS shunt regulator for each channel.

Normaly with a two chassis build I would ground everything to the last PS cap placed in the amp chassis. Here I have two of those. So I was thinking best to ground each channel to its respective cap and then join those to neg cap terminals together to send over the unbilical cord as a single ground wire. Does this make sense?

Also how should I earth the amp chassis, just pick on capacitor and earth that one? Or since there is no AC in the amp chassis maybe I get away without earthing the amp chassis?

My unbilical cord has 5 terminals, Left prefiltered B+, R prefiltered B+, DC Heater +, DC Heater - (lifted 50V in the PS chassis), and ground.

Also the SS shunt regulators have to be in the amp chassis to keep them close to the OPT's to prevent oscillations.

Kind of a complicated setup that I haven't run into before.