abk780

the amp is on but the sub always cuts out when i turn the volume up.
even when the volume is low it still only plays for a few seconds n then cuts out again. could it be cuz of a bad ground ?

jalat

iTrader: (6)

going into protect mode.
possible ground issue or voltage issue

Adnan

i would check if the negative and positive aren't touching when the bass hits
i had the same problem with a petra 10" the terminals were broken
so once the bass hits the amp would go in protection for a few seconds
then back on and off

abk780

negative/positive arent touching and i re-did the ground wire but it still dont work.
tomorow its gettin looked at so ill let yall know what the problem was

TragicMagic

Is this part of a new setup? Perhaps the amplifier isn't having a high-enough load put on it.

whosit

iTrader: (2)

Have on ohm meter? Check the resistance on the sub. Sounds like a bad sub to me.

abk780

i have a alpine mrv1000 amp and the sub is a 12" s-type (4ohm)
its bridged, i dont know alot about this stuff so i hope i gave enuff info.

whosit

iTrader: (2)

When you turn it up and it cuts out does the power light on the amp cut out as well? When you ask if a bad ground could cause it the quick answer is yes but I still think that it's more a speaker issue. When a sub "goes" the resistance on the sub is lowered and then when you turn the volume up the amp cuts out because it can't handle the load on it. It could be other things but I would start there. Got another sub or speaker you could try ad see if it still cuts out?

whosit

iTrader: (2)

In just looking on google quickly.... Your amp seems to be 650 watts rms bridged at 4 ohms and your sub only 300watts rms. Is this so? If so that might be your answer and confirm my suspicion on a blown sub.

TragicMagic

MRV 1000? What are the ratings on this amp (Can't find anything)? Perhaps it's too much power for the TypeS, which has an RMS of 300W.

If this amp is the same as the MRP 1000, even if the sub is wired for 4 ohm, you're doubling the RMS. Perhaps the sub has been damaged by the amp, now the amp is going into protection since the circuit is 'broken'...