Well,everyone that I've ever seen with them ran 3.The guy;I'am getting them from was running all 3.They're dual 6ohm subwoofers.It's something to do with the wiring set-up with 3.But apair can be ran tho!
Well,really that's the main purpose of me buying them.I wanted some sub's that could handle the Audiobahn power and get insanely loud.I'am no SQ person anyhow!SPL all the way!But,I still run mids & highs to make it blend well.