Alpine mrp-m2000 amp cutting out

[Humpty 10+ year member]

So I have a 2005 crew cab silverado. I have thrown a 15" l7 solobaric kicker in the rear to replace one of my seats, it is wired at 2ohm and puts out 1000w rms. I have an alpine mrp-m2000 amp, wired with 0 gauge and a 175amp fuse. I have also bought a High output alternator rated at 320amps, with this upgrade I have also completed the "BIg 3" upgrade in 0 gauge. I am running all this with a JVC avx840 head unit. CUrrently I have the gain set to the lowest end.

Anytime I get the volume to about 20 out of 50 the amp starts to cut out and i cannot figure out why. Is it possible that i need a second battery. I was under the impression that a 320 amp alternator would easily be able to power a 1000w sub. What could be the problem here?

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[04murdalanche]

So I have a 2005 crew cab silverado. I have thrown a 15" l7 solobaric kicker in the rear to replace one of my seats, it is wired at 2ohm and puts out 1000w rms. I have an alpine mrp-m2000 amp, wired with 0 gauge and a 175amp fuse. I have also bought a High output alternator rated at 320amps, with this upgrade I have also completed the "BIg 3" upgrade in 0 gauge. I am running all this with a JVC avx840 head unit. CUrrently I have the gain set to the lowest end.Anytime I get the volume to about 20 out of 50 the amp starts to cut out and i cannot figure out why. Is it possible that i need a second battery. I was under the impression that a 320 amp alternator would easily be able to power a 1000w sub. What could be the problem here?

That's your problem. Doesn't matter what the sub is rated at. The amp is still drawing current. More than 1000 worth. But even with one batt and a HO alternator I wouldn't think it would cut out, I ran my AQ2200 in my truck. No big 3 no HO alt, just a bi *** extra battery and I dipped to the low 12s but that was it.

 

[Below20hzonly 10+ year member]

Did you check all of your connections. Grounds. Battery terminal tight. Check everything

 

[04murdalanche]

Did you check all of your connections. Grounds. Battery terminal tight. Check everything

I was in east grand forks this summer man, got some fan up there. I woulda hit you up had I known you lived there

 

[Humpty 10+ year member]

Well loose connections were my first thought. But I've checked them all a few times. And it only happens when the volume goes past s certain point

 

[Below20hzonly 10+ year member]

That's cool man how long we're here for?

I was in east grand forks this summer man, got some fan up there. I woulda hit you up had I known you lived there

 

[Below20hzonly 10+ year member]

Sounds like you might be clipping the signal

Well loose connections were my first thought. But I've checked them all a few times. And it only happens when the volume goes past s certain point

 

[04murdalanche]

That's cool man how long we're here for?

Two weeks back in July, I may come up again for Christmas, my dads up there working in the oil fields.

OP, sorry to clutter your thread. Check the voltage at your battery.

 

[Below20hzonly 10+ year member]

Let me know if your gonna be up here around christmas for sure then we will gotta meet up

Two weeks back in July, I may come up again for Christmas, my dads up there working in the oil fields.
OP, sorry to clutter your thread. Check the voltage at your battery.

 

[04murdalanche]

Let me know if your gonna be up here around christmas for sure then we will gotta meet up

Sweet. Will do man

 

[Humpty 10+ year member]

The gain is set to the lowest setting and the hu Is only at 20 of 50 when it starts to cut out. Sub boost is at 0

 

[Humpty 10+ year member]

So i rechecked my ground Again... It is self tapped to the cab floor under a seat. I scraped all the paint off the selp tapped it. I checked this connection with a multimeter and it read 0.6 ohms.

I'm thinking that's a little. I'm gonna try to move the ground through the cab floor to the frame.

Hopefully this will help...