Stellar M700's and dual REL T7i

Audio Components
1

PS Audio:

I have the original Stellar M700 monoblocks without the chassis ground. Which screw can I connect the black wire to when connecting dual REL T7i subwoofers via High Level?

Thank you,

Byrdman

M700-rear-700
M700-rear-700700×298 199 KB

2

Any chassis screw will do.