what wrong

[Pauliesnite93 10+ year member]

i just installed a mb quart 1500.1 in a jimmy. is powering two diamond audio d6 d4 12s. the amp is running at 1 ohm. the power wire is a rockford fosgate 8 gauge kit and i know that is way to small but i have got a 0 gauge kit on the way. it was working perfect than two days after the install it started blowing fuses like crazy. and he took it to best buy before he came to me and they said his amp was blown so i hooked it up to my 4 gauge in my truck and it worked perfect. so i looked over his system and his ground is connected to the jack in the back. so could that be it. and it was only a 60 amp fuse in the power wire and the amp has 2x70 amp fuses in it so could that be it or is the amp blown by not getting the rite power. plz help

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[Pauliesnite93 10+ year member]

sorry if this is in the wrong place but i sound like a electrical problem

 

[kr15 5,000+ posts]

the amp is blowing fuses or the inline is?

 

[Pauliesnite93 10+ year member]

o sorry i did not put that is the inline but they are only 60 amp barrel fuses

 

[hatedonmostly 5,000+ posts]

i just installed a mb quart 1500.1 in a jimmy. is powering two diamond audio d6 d4 12s. the amp is running at 1 ohm. the power wire is a rockford fosgate 8 gauge kit and i know that is way to small but i have got a 0 gauge kit on the way. it was working perfect than two days after the install it started blowing fuses like crazy. and he took it to best buy before he came to me and they said his amp was blown so i hooked it up to my 4 gauge in my truck and it worked perfect. so i looked over his system and his ground is connected to the jack in the back. so could that be it. and it was only a 60 amp fuse in the power wire and the amp has 2x70 amp fuses in it so could that be it or is the amp blown by not getting the rite power. plz help

Good choice of placement. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[kr15 5,000+ posts]

well, 8ga plus 60amp fuse is only rated to handle so much current. If you figure 60x14volt, it should handle about 800rms. Your amp is putting out 140x14x.75 (%, at 4ohm should be in 80s tho)=1470rms. Your not gonna push that exactly, but roughly. You are at almost double your wiring limit, thats likely why your fuses are popping. I just blew a 60 on 8ga a while back running over 1000rms...Essentially the fuse is over heating and popping because its not rated to maintain that kind of current

and thats a very questionable ground at best, it should always be grounded bare metal to the chassis if possible

 

[hatedonmostly 5,000+ posts]

well, 8ga plus 60amp fuse is only rated to handle so much current. If you figure 60x14volt, it should handle about 800rms. Your amp is putting out 140x14x.75 (%, at 4ohm should be in 80s tho)=1470rms. Your not gonna push that exactly, but roughly. You are at almost double your wiring limit, thats likely why your fuses are popping. I just blew a 60 on 8ga a while back running over 1000rms...Essentially the fuse is over heating and popping because its not rated to maintain that kind of current

This is all true, but not the reason this is most likely happening...

 

[kr15 5,000+ posts]

This is all true, but not the reason this is most likely happening...

that lovely ground placement the likely culprit?

 

[hatedonmostly 5,000+ posts]

that lovely ground placement the likely culprit?

I believe so...lulz

 

[Johnny Law.Lulz 5,000+ posts]

Try putting your amp ground to the basket on the subwoofer //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

In all seriousness. You need a chassis ground. That ground is shitty, period.

 

[Pauliesnite93 10+ year member]

i did not place the ground it was best buy they also placed the power wire on the wrong side of the car. but i just got a 0 gauge kit shiped with a 150 amp anl fuse. what i will be installing on the side of the batt. is the 150 amp fuse going to be right for this amp. what should i do about the 0 gauge in to the amp the amp only has 2 gauge inputs but it is shitty wire so do u tink i could just cut a little bit out and make it fit.

 

[Johnny Law.Lulz 5,000+ posts]

i did not place the ground it was best buy they also placed the power wire on the wrong side of the car. but i just got a 0 gauge kit shiped with a 150 amp anl fuse. what i will be installing on the side of the batt. is the 150 amp fuse going to be right for this amp. what should i do about the 0 gauge in to the amp the amp only has 2 gauge inputs but it is shitty wire so do u tink i could just cut a little bit out and make it fit.

- Yes trim the wire and itll fit.

- That fuse should be fine, but if your amp has internal fuses i wouldnt even worry about that fuse

- I dont care who put the ground there, it should be obvious that it is a horrible place. I wouldve taken that **** back to best buy and told them to fix it or give me a refund.

 

[kr15 5,000+ posts]

what i will be installing on the side of the batt. is the 150 amp fuse going to be right for this amp. what should i do about the 0 gauge in to the amp the amp only has 2 gauge inputs but it is shitty wire so do u tink i could just cut a little bit out and make it fit.

a few things, make sure that the RCAS are not ran near the power. Yes 150 is enough. You can either splice it a bit to make it fit, or get a 0in/2out distro block

 

[Pauliesnite93 10+ year member]

all this help is the greatest. some people on fourm are dicks and tell u to google ****. but is that not why most people look at forums. they look at them for help to know what they need to know.

 

[Pauliesnite93 10+ year member]

i think i am going to splice it (save money). but the rcas are ran on the other side of the truck.