I've just purchased two PSW404s. I would like to hookup one PSW404 with the left main speaker and the second PSW404 to the right main speaker. What is your recommendation for the PSW404 Controls? My assumption is to route the speaker wire thru the in-and-out speaker left channel for PSW404 left main speaker-set; then route the speaker wire thru the in-and-out speaker right channel for PSW404 right main speaker-set. Are there other Control Panel considerations I should make?