19 replies to this topic

[romano.inc]

Hello
Just wondering if anyone knows of any suppliers or people that can make dual power and earth inputs for my amp. Recently added a 105 amp hour battery to the rear to stop voltage drop since im using a rockford t4000 now. Gains are set very reserved at the moment and at full tilt am getting about 2 volts of drop.. not too bad i know but would like it to be steady so im guessing adding more 0 awg to the amps should make a difference?

I recently put in a volt meter as well so i can constantly monitor voltage and have noticed i cant get a steady 14.4v at the amp even with the volume turned off. Some days it will float at 14.4 and on other days i struggle to get 13v at the amp. Is this just the ecu controlling the voltage or is it an alt problem?

Any help would be awesome!

Cheers

[Tiger]

Big V can make em.

Otherwise.... I know about 3 guys in the states that can make them.. and solid ones too!

[Tiger]

From the States

[Arctic Alto]

check out my distro's in my install :
http://www.mobileele...l-daily-driver/

Me & my mate can make them, let me know if your interested.

[Tiger]

Oh yeah... forgot about you hahaha

[Arctic Alto]

Tiger, on 23 January 2012 - 09:16 PM, said:

Oh yeah... forgot about you hahaha

[Tiger]

HAHAHAHAHAHA

On that note.... Chris, I've seen AA's terminals in the flesh. Top quality too.

[Sam.Harvey]

romano.inc, on 23 January 2012 - 08:00 PM, said:

Some days it will float at 14.4 and on other days i struggle to get 13v at the amp. Is this just the ecu controlling the voltage or is it an alt problem?

Any help would be awesome!

Cheers

My alternator does this also, it seems like mine kicks back in when I turn the volume up though. It also turns the alt off when I have the aircon going and I am trying to accelerate off. I'm guessing this is normal for my car atleast as my batteries are always fully charged and my voltage barely moves with extra volume.

[268669♫]

Whats the wiring like from your alternator to your rear battery, and alternator earth? also whats your alt rated at?

You should only need 1 run of 0g from rear battery to amp to not get voltage drop, but remember a battery is only 12v and the alternator is what will give you 14v+. If the wiring from the alternator can only give you 100amps at 14v+ then when the amp draw exceeds 100amps it will drop the voltage back down to 12v volts. or the battery float voltage (float voltage is only when the car is off remember).

Try and test if you have voltage drop when the car is off. Measure the voltage at the amp car off and music off, than measure with car off, music or test tone cranked without damage. This will tell you if you have voltage drop between the rear battery and amp and if you need to get another 0g into the amp.

My guess is it will be fine and the problem your getting is the alt wiring and/or alt output. Upgrade your alt charge wire to 0g to front battery and 0g from front battery to back battery, even 2/0g from front battery to back battery will help. Also make sure you earth the alternator with 0g to chassis or back to front battery.

Ant

[089JAY]

Romano has already done the big 3 in 0awg so that's not gunna help here. My guess is a) 1 of the batts is shagged or b) alternator is shagged. When I had the rear battery in the puksar and 2 Jaycar 1k's strapped I never seen voltage below 13volts at either amps.

[268669♫]

The big three what? If there's a missing link, it will be causing his issues. Please get him to check all the wiring upgrades I mentioned before spending money on the dual inputs. I'm guessing the amp is 1m away from the rear battery? If thats the case then the 0g should flow over 1000amps and if his amp is drawing more than that there is something wrong.

Ant

[romano.inc]

Thanks for the replies guys, yeah i have a run of 0 gauge front to back for the charge wire with 2 brand new 200amp circuit breakers on either end.. as the earth wire theres only 4 gauge going from the front battery to back only cos i had the 4 gauge wire run but this apparently is more than ample. (spoke to lunchbox about it). The alternator is 130amp im pretty sure..

Up front is an optima d34 thats less than 6 months old and a brand new 105 amp hour deep cycle in the back and both are resting at 12.7v so theyre fine.. what confuses me is that on some days it will sit on 14.4 (typically mornings ive found) where as at other times im only getting 13v but regardless im getting 2v of drop at full tilt with like half a metre of cable from batt to amp..

And cheers about the replies for dual inputs, i like the idea of the pin type inputs but thanks for the offer arctic alto i may get you to do them yet

Jay_Laser, on 24 January 2012 - 01:04 PM, said:

When I had the rear battery in the puksar and 2 Jaycar 1k's strapped I never seen voltage below 13volts at either amps.

Yes but im running close to double that power..

[romano.inc]

Just an idea guys, instead of getting the dual inputs at the amp, i have 2 distribution blocks that are 2 x 0 awg in to 1 x O awg out..

If i was to have 2 runs from the battery into a distro, and then have like an inch of cable from distro to amp, would this in theory give me the same result?

Or i could even get a pin made to go in the distro and straight to the amp? Just because i already have the distros and because theyre rockford ones they look real nice and have covers all around it..

Thanks guys

Edited by romano.inc, 10 February 2012 - 12:03 PM.

[Arctic Alto]

thats the kinda thing i'm using, but i got custom ones made.

[romano.inc]

Oh awesome yeah that's the exact theory I had! Does it make a lot of difference as opposed to a single one? Hoping it will help keep my voltage steady