Question: what is the difference between dual 1 ohm and dual 2 ohm?
Answer: D1 (Dual 1-ohm) speakers, when wired in parallel, wires down to a 0.5 ohm load - if you're running one subwoofer. D2 (Dual 2-ohm) speakers, when wired in parallel, wires down to a 1 ohm load - when running one speaker. ... If you're looking to run two, get two D1's because they wire together down to a 1 ohm load.