The Loudest Warning Dual ASR panel is a dual unit panel for the CGS034 ASR pcb.
Of course the dual version requires two CGS 34 PCBs (only one CLee bracket though).
Wiring Diagram for Dual ASR
NOTE: This design uses one SPDT ON-ON toggle, one 3PDT ON-ON toggle, one DPDT ON-ON-ON toggle.
Switch truth table – A is left, B is right – great results can be obtained by fiddling with the switches in a perfomative fashion: