Building a subwoofer

[Aiden178]

Hello,
i'm planning to build my own subwoofer but I have a problem with a part of it.
the subwoofer i'm planning to buy is Pyle PLPW8D 8-Inch 800 Watt.
the problem is I do not know what amplifier plate does I need to buy, I have problem with the money, so I cant buy something like this:

http/www.ebay.com/itm/332114630244?_trksid=p2060353.m1438.l2649&var=541140763452&ssPageName=STRK%3AMEBIDX%3AIT

I need something cheap that will work good for me.
what options I got?
thanks for helping.

 

[americanaudiophile]

The plate amp you link to has amps for satellite speakers too. Don't know if you need that or not.
If $58 is more than you can spend I don't think you will be able to build a sub. You still would need a cabinet for it.
You might be able to find a used self powered sub for less.