It is impossible to make a dual 2 ohm sub only be seen as a 2 ohm load with out damaging the speaker. there is a way but if i tell you how to do it, then "WHEN" not if but definately when you blow up the sub you will be ticked at me and expect me to pay for it so i am bound by law not to disclose it. being mecp certified and an authorized distributor makes me liable for any
mis-information. and the only way to do it is the worst way to do it that may possibly even cause the amp to blow or even worse the sub can and most times does actually catch fire inside the voice coil.

you have to have a dual 4 ohm.sub to get a 2 ohm load at the amp