Created: Jul 16 2018 | Updated: Aug 24 2018
Depending on model, the subwoofer's Power control will be on the subwoofer's main control panel (either on the front, back, or bottom).
Depending on which subwoofer you own, you will have different options for Power Controls.
When set to "On" a subwoofer will be powered on all the time.
When set to "Off" a subwoofer will be powered down.
When set to "Auto" a subwoofer will power on and off automatically, which eliminates the need for a manually operated power switch and turns the subwoofer on whenever there is an input signal. If no input signal is sensed after a period of time the subwoofer will switch off automatically.
When set to "Trigger" the subwoofer’s power on/off to be controlled by components that have trigger outputs (Preamp/Processor or A/V Receiver, etc.) using a 3.5mm cable. It’s good to note that some products will work with only a mono cable, others with only stereo cables and some will work with either, so if you are having.
For information specific to your subwoofer's Power Control, please refer to the subwoofer's manual.