Lights Dimming.. Electrical upgrade?

[hdj20 10+ year member]

Im running one fi q 12" with an american bass vfl 80.1 at 1 ohm. Also have 1 3.5 farad cap in. Amp kit is the KLM 4 gauge. At higher volumes lights dim pretty bad. Whats the best upgrade I could do to help this.

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[alvitae 10+ year member]

1. What is your ground like? Free of paint and solid?

2. Big 3

3. Swap the capacitor out for a small audio battery, Kinetic 600 or similar.

4. Bigger alternator

That"s the order I would try until the problem is gone.

 

[nickolas_j_t 10+ year member]

use a bigger alternator, problem solved

 

[Ferendon 10+ year member]

There are steps you can take before you take the plunge to a bigger alternator.

 

[hdj20 10+ year member]

what is safe voltage before i should start worrying when cranked it goes from 13 to 14 volts back and forth?

 

[AlterEgo99 5,000+ posts]

1. What is your ground like? Free of paint and solid?
2. Big 3

3. Swap the capacitor out for a small audio battery, Kinetic 600 or similar.

4. Bigger alternator

That"s the order I would try until the problem is gone.

Yup, that would be my approach too...Big 3 will probably fix it.