Sub problem

[vipershark11]

ok today i took my 2 12" visonik sub package out and put it in my friends grand am all the same wiring and such. He didnt crank the HU volume and both subs were working as i played with the gain/boost some. Then once it left the shop only one sub was hitting can anyone tell me why please is it the amp or sub or wiring?

[nineteen88ga]

umm check the connections. its kinda hard to tell if its the wiring without seeing it. if you have access to a digital multi meter check the impedance of the subs. that'll tel lyou if they're blown or not.

[Bjornboy81]

a wire could've vibrated lose....just recheck everything and make sure all connections are secure.