my sub is sputtering? help!

So the other day i was moving the wires around to make my set up look a little cleaner, and my sup started to make the sputtering sound. You can still here the bass theres just a sputter with it. I moved the wires back to normal, and it still made the sound. The set up is a JL audio M10IB5 CG WH 10" powered by a memphis 1600 its 250w at 4 ohms, and thats what i have it set at... so hopefully its not blown.