current switch for subwoofer build possible?

[Steven20151991]

i built a subwoofer for use with my surround sound with 1300w sub, 1100w amp and 12v 30a dc psu. is there a switch to turn the psu on and off when current though low level line is not present like my receiver does after 15mins. it works great as is and @$100 for the build is awesome but uses power when not on because theirs no switch at all right now also like to extend the life span of the converter

 

[americanaudiophile]

https://www.nilesaudio.com/product/current-sensing-outlet-switcher-FG00254
If the receiver has a 12v trigger output then it's easy to use that to trip a relay to turn the PSU on and off.
https://www.nilesaudio.com/product/voltage-triggered-ac-power-strip-FG00242
or you can make one.
Might be more money than it's worth.

 

[doolittle]

There are cheap energy saving surge protectors that use a "master" outlet to control several other outlets on / off like this one that has 7 outlets total - 2 always-on outlets and 4 outlets that are controlled by a master outlet. It has an adjustable threshold that should make it work with your AVR and sub amp nicely.

I should get one, currently my DIY home sub using a 1100w car amp and a PC power supply I use the PSU on/off to power it manually!

 

[Steven20151991]

There are cheap energy saving surge protectors that use a "master" outlet to control several other outlets on / off like this one that has 7 outlets total - 2 always-on outlets and 4 outlets that are controlled by a master outlet. It has an adjustable threshold that should make it work with your AVR and sub amp nicely.

I should get one, currently my DIY home sub using a 1100w car amp and a PC power supply I use the PSU on/off to power it manually!

thanks, looks like a great solution and able to add to my system in the future