I would like to see how the VT-22 preamp sounds through the SVT power section. And perhaps visa versa. Both amps have "Preamp Out" and "Poweramp In" plugs in the back. Is it as simple as that? When I plug a cord into the "Preamp Out" thing in the back of the VT-22, does this disconnect power to the VT-22 output section? When I plug a cord into the "Preamp Out" thing on the back of the SVT, does it shut off the output section of the SVT? I don't want to damage those output transformers.