PD60A section is sorta more better accurate-ish
Determine the resistance of the Ohm meter's own leads by touching the two test leads together. Subtract the displayed value from measurements before comparing to those given below.
*Single functional PD60 driver will read 9.5 -
10 ohms directly from the terminals on the driver, not including any wire*Four PD60 drivers will read 2. 5 ohms when wired together in parallel with a short length of wire*Two PD60 drivers together will read 5 ohms when wired together in parallel with a short length of wire*Four PD60 drivers wired into a speaker line roughly 250ft. in length will read 1. 4 ohms*Four PD60 drivers wired into a speaker line that is 25ft. will read 2. 14 ohms