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Setting Amplifier Gain Control


dbwesz

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good info here. Ive got 2 sa2500 starped at .5ohm for me is it square root of 5000x.5 and get 35.3? Would I use the positive from master amp and pos from slave amp with the dmm (the negatives are wired together between both amps)or can I just use the pos and neg from the master?

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good info here. Ive got 2 sa2500 starped at .5ohm for me is it square root of 5000x.5 and get 35.3? Would I use the positive from master amp and pos from slave amp with the dmm (the negatives are wired together between both amps)or can I just use the pos and neg from the master?

Wondering the same thing. I have 2 saz1500's strapped at 2 ohms... No clue where to put the probes from the DMM.

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DC audio 175.4

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I adjusted my gain using a chart from a

Formula and used a volt meter and I was

Wondering if i installed a line driver if

I would have to re adjust my amps gain again

8 sundown sa 12s walled
Saz3000 at .5
HO alt
All ofc Sky high wire
Alpine components
Rockford power mids

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I have a couple of questions on my amp. It is a Planet Audio BB1250.1. It is running 2 Treo SSi 12" dual 4's and is wired to 1 ohm.

First, I was adjusting the gain today by ear and it has the gain setting but also has a input sensitivity switch and you can select either 100mV-2V or 2V-8V. When I switch it to the 2V-8V setting and adjust the gain, there is no difference in output. The subs are playing but very low. Now if I switch it back to 100mV-2V, the gain setting actually changes output. Anyone have any ideas on why there is no difference throughout the 2V-8V setting. The deck is a Alpine 9813. Eq for lower frequencies are either flat or - (which that setting is not being changed during the process) and subwoofer level control at 12 also did not change. If I understand correctly, the subwoofer level control acts as an control for the level output. I have read that the deck puts out 4V with subwoofer level control at 15 but will be less at a lesser setting.

Second, the amp came with a birth sheet that has it at 1251@1 ohm. I don't want to dig the birth sheet up but I believe that the rating was with 12.x or 13.x v of power. The voltage readout that I have at the amp never really goes below 14.0V. Would the rated power be increased, even by a little, with the higher voltage rating or is it the same from 12-14.4V like some amps?

Thanks in advance.

What's up y'all I got the same question as the member above. The input switch when set on 2-8v makes the subs very quite and have no movement. When I set the amp on .1-2v the gain actually makes the subs hit and has a fair bit of adjustment to the amount of output power. Wondering why this is.

I am running a soundstream rub2500.1d @ 1ohm. I just don't want the gains set to "strong" and mess the amp up or make it over heat.

HU:

Bass: 0

Mid:+2

Treb: +3

Subwoofer level: 6/6

Preout voltage: 5v

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How do I find out the voltage thing for my 2011 zx1500.1. I don't see it in the manual anywhere. The one the no video says to get

1998 Pontiac grand prix gtp supercharged2 12" Obsidain Audio V.1 on a 2011 zx1500.1 at 2 ohms. 20ft of Knuconceptz CCA 0 Guage. 2nd Battery is a Shurken BT-120. Box is 3.5cu tuned at 31.8hz sealed off from the trunk. 14sqft of Dynamat on the Rear deck top & bottom. Soon to be more for doors/roof. Gets low & loud

Did a 140.5 Sealed at Battle of the boom in June 2013 dropping to 12.7v (need a alt mines going bad)

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