theres a problem with my system.

[YoungBuk 10+ year member]

i just installed my old 12L7 today with my 1000 memphis mono amp.....i turned on my radio and hurd a bump. and then the sub seemed to vibrate even though the music was at zero. and everytime i change the track u hear a bump again. i checked all my wiring and everything is solid. what now?

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[Prowler573 5,000+ posts]

It sounds like a bad ground.

Now whether that bad ground is on your amp, the head unit, or elsewhere (as I do not know exactly what all your system is comprised of) would be up to you to locate.

 

[NhustlaR 10+ year member]

x2 on the ground.

 

[supraman1379 10+ year member]

x3 on the ground.

 

[azbass 5,000+ posts]

probably not the ground.

 

[YoungBuk 10+ year member]

3 x on the ground yee....ill recheck 2morrow.