Each zone can be individually toggled on or off with the front panel switch.
gov Updated Jan 20, 2022 Warning: This product may contain a chemical known to the State of California to cause cancer, birth defects, or other reproductive harm. Built‑in impedance‑matching circuitry ensures that the overall impedance level to the amplifier does not drop below 5 ohms, no matter how many speaker zones are selected or how many speakers are in each zone. The unit can handle up to 100 watts per channel with the protection circuitry enabled and up to 200 watts per channel with the protection circuit disabled.P65Warnings.