Couple Wiring Questions

[Why So Cereal? 5,000+ posts]

I have a boston GT40 on my highs at 2 ohms up front and 4 ohms rear.

On my subs I have a Memphis ST1500D pushing 3 sundown sa-8s at 2.67ohms before rise.

My lights dim a good bit when the bass hits and just today my high end amp seems to cut off when the bass really starts going. The sub amp is hotter than the highs amp so I dont think its overheating and the boston highs amp is fan cooled. I have zero gauge running to my batcap 800 in my trunk and 4 gauge to my memphis sub amp and 8 gauge to my boston amp. Stock 100a alternator. Scion tC.

could it be that the sub amp is pulling so much current that it is causing the highs amp to go into protect? would the smaller wire have something to do with this?

I am thinking about doing my big 3 as well. But someone told me that doing my big 3 only adds stress to my alternator since its stock. is this true?

the problem just started today and i have been running the setup for about a week maybe 2 weeks. all help appreciated.

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[tv559 10+ year member]

I thought you couldnt have different impedence

 

[LosIsATool 5,000+ posts]

I told you before that stock alt cant take a whole lot. I had to get a HO at 1500 rms

 

[Why So Cereal? 5,000+ posts]

I thought you couldnt have different impedence

I've been running it like that for months and all of my amps have been running like that for years.

Plus my highs amp is not even getting hot.

 

---------- Post added at 05:50 PM ---------- Previous post was at 05:49 PM ----------

 

I told you before that stock alt cant take a whole lot. I had to get a HO at 1500 rms

yea, im workin on upgrading it. u think thats causing my problem?

 

[>>SQL<< 10+ year member]

the big 3 only helps your stock alt it cannot hurt it in anyway.

 

[Why So Cereal? 5,000+ posts]

the big 3 only helps your stock alt it cannot hurt it in anyway.

that was what i thought as well.

I think i need to do that

 

[LosIsATool 5,000+ posts]

Check Exsessive amperage. They did a 200 amp for me for $400 shipped but see about getting the voltage regulator on it. I didnt and I wish I did, our car only charges at 13.8 and the grounds **** unless you run one from the front to the back. I havent yet but Im working on it.

 

[Why So Cereal? 5,000+ posts]

Check Exsessive amperage. They did a 200 amp for me for $400 shipped but see about getting the voltage regulator on it. I didnt and I wish I did, our car only charges at 13.8 and the grounds **** unless you run one from the front to the back. I havent yet but Im working on it.

What do u think about gettin my stock alt rebuilt to give me just a little more.

This is The most current ill probably pull in this car. and my budget ***** right about now.

 

[LosIsATool 5,000+ posts]

A rewind wont do **** at idle. Its well worth it. Just role the gain back a bit until you can get it done right

 

[keep_hope_alive Premium Member]

you need to monitor voltage at your amps. excessive voltage drop can cause the "highs" amp to shut off from low voltage. but usually that won't happen until you drop below 12V.