Sub doesn't play at full volume

[97_luder]

i have an Eclipse AVN7000 head unit and i have a MA audio amp hooked up to a Solo X 10". the problem i am having is that it is send a weak signal to the amp and only playing at about 1/3 the volume but every now and then it will play at full volume. the speakers in side the car work fine. i tried using a different amp and i had the same problem. anyone have any ideas on what could be causing this?

Thanks

[audiowiz]

sounds like the preamps in the headunit are going out

[audiowiz]

its also possible one of the coils on the sub is toast

[97_luder]

i dont think its the coils how if it my preamps how can i fix it?

[sina518]

sounds like a clipping issue. i doubt its your radio. i just dont thing your amp is worth a damn or its pulling too much current. when your sub cuts off check and see if the amp turns off

[audiowiz]

if the amp was cutting off the sub would stop playing, not just lose some volume. its possible its the amp, but he says he threw a different amp on it and its having the same problem, if its the preamps in the radio, it has to be repaired or replaced. does it cut out randomly or when it hits hard?

[b@d @pple]

likely the radio

[blackcrx_si]

before you go replacing your radio, check the ground for the amp, make shur you have a good solid ground with good contact, i had the same problem and i changed the ground and it worked fine

[97_luder]

it cuts off randomly and im going to check all my wires and make sure the wires in the box are secure on the sub. ill post what i find tomorrow and see if we can figure this out

[patrick4588]

x2 on the ground wire. could also be bad rca's.