Wilson has their trained representatives setup their speakers and the Sabrina X list nominal impedance as 4 ohms at 135 Hz and it spends much of the time around 5 ohms. When they set up the speakers they used the 8 ohm terminals and I asked if 8 ohms was the correct terminals and they said yes, but I didn’t understand why they chose 8 ohms. I’ve not changed to the 4 ohm terminals. The MA-12000 has a solid state power amplifier, so I’m guessing that the only downside to this would be the amplifiers working harder for a given SPL.
Amplifier circuitry-4 ohm vs 8 ohm
Obviously there are different wires leading into the four or eight Ohm taps on the back of an amplifier from the one amplifier. The single amplifier at some point splits the signal going into either one of these Ports. What differences are there in the circuitry?
Maybe this will help me better understand the difference between these two taps. I believe 4 ohms is a wider more open path for voltage to flow. So when you're speaker attempts to go lower, which requires more power, the 4 ohm more easily allows this to happen with a better outcome. Or maybe I got this wrong.