I have a 12" Jaycar Response sub in my car with a pioneer amp. Only recently the subwoofer has started cutting in and out... mostly out. After a while I've narrowed down the issue to the output plugs on the side. Pretty much if I tap the cables in the slightest way the sub will cut out. The vibration of the sub cuts them out, the movement of the car cuts them out. First the two plugs the cables are going into appeared loose, so I tightened the screw next to them which secured them but still if anything moves the cables in the slightest way they cut out. I've tried swapping the cables with ones used for the speakers but the same issue happens. I've also tried securing the cables to the side of the box with tape but again this doesn't help.

Any ideas? Can I get this repaired? Should I just go buy a new sub?

Our woofers are notourious for this. Solder directly on to the terminals and this should solve the problem :)

I ran HD speaker cabling Direct from the speaker out of the Amp to the terminals on the speaker.
Most boxes have Cheap internal wiring as well as crappy connectors.

Assuming you have an aftermarket Box that.

Or you can replace the connectors on the box itself.

Spare parts are readily available almost anywhere.

Definately not going down the path of recommending a new sub for a few lousy connectors.

Our woofers are notourious for this. Solder directly on to the terminals and this should solve the problem :)

+1 This is the best permanent fix.

I might check with a car audio place about gettin the plugs fixed. I dont wanna solder the cables directly to the plugs in case it doesn't solve it and then have permanently plugged in cables.

Get yourself some bullet connectors or anderson plugs in that case.

You can un-solder them, just re-heat it with a soldering iron and pull the wire out, provided you didnt twist and tie it right around and through the terminal too many times before you soldered it on. A spare piece of wire with fine strands can be used as a wick to soak up excess solder off things that were previously soldered if you dont want to buy the proper solder wicking from an electronics store, and you will be left with a terminal with a thin film of solder and a plug should still go on fine, maybe a tiny bit tighter. Which could be a good thing if its loose as it is.

id also check your ground, i had that same problem with my amp and sub losing power but i guess if your amp is holding power your ground is fine and in that case what the others have said would be spot on,