how to test out amp and sub

[ziggy19]

I want to buy a used amp and sub.How can i test it out to make sure it works,its not in the car.

Thanks

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[loopkiller 10+ year member]

I want to buy a used amp and sub.How can i test it out to make sure it works,its not in the car.Thanks

You will need the following:

1) 12V battery or power supply

2) Speakers

3) iPod or head unit for signal source

4) Wiring for everything

5) A clue