I got curious and wanted too check out the ohm reading on my sub, so i just disconnected the speaker cable from my amp, then put the probes of my dmm on the the positive and negative cables. The dmm says its wired to 1.8-2.0 ohms. Is this normal? or by some mistake do i have a d4 ohm sub? I have a SS RL-p 18 d2, wired in parallel to my sundown saz1000d. thanks!