what kind of amps do u have?
Have a Kenwood 2ch 200rms. I know worked when I boxed it up.
Another 2 channel that i haven't investigated and a 4ch that looks a little bent.
I used the Kenwood like 10 years ago to push a RadioShack 15" 300rms woofer in an amazing folded horn box. Got the speaker and enclosure for a $70 total. Would rattle windows next door. Sadly some asshole decided he needed it more than I did and stole it out of the truck. Went to 6x9 duty in my Buick after that until I sold the car. Been sitting in a box since.
The other two were given to me, no idea when or where but I haven't had anything to hook them up to test them. The 4ch worries me, the case looks like it fell down a flight of stairs and landed hard. I'll be opening it up before applying power.