amp for subwoofer only?

[rutledj 10+ year member]

I have a poineer avh-s5800 head installed in my truck. I'm plenty happy with the power output to the replacement speakers I've installed.

I'd like to add a subwoofer behind the seat. Have a 10" slim model that fits nicely. I also have an old alpine amp with front\rear\sub inputs and outputs. Would it hurt the amp for me to just connect inputs to the sub in and the sub out to the subwoofer?

There are gain controls for the front, rear, and sub on the amp. I can turn the gain down for the front and rear but wasn't sure if the amp still needed a load on those outputs.

Thanks,

Rut

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[BOOMINGRANDPA 5,000+ posts]

yep just don't connect rcas to the front/rear u be fine..