zx2500 going into protect! Im pissed!

[mazzasec 5,000+ posts]

I hooked up my KX2500 when I got it in to make sure everything worked....I decided to crank it up(remember I have stock elec. with a 60 amp alt.//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif) When my amp went to draw alot of power, my lights would not only dim....they went OUT. I know my electrical sucks(for now) but these big amps LOVE power.

also i dont even have a 4 channel hooked up its just stricly the zx2500 my lights dont even dim that much

 

[Goindef154 5,000+ posts]

I think, and I may be wrong, but that amp draws just as much strain on itself with a 2 ohm load as any other amp thats stable down to 1 ohm. May be wrong though

Your right.

 

[bass-aholic 10+ year member]

**** Its just i know people be running 3000+ watts on stock alts with there amps at 1ohm My amp is wired to 2ohm so theres more resistance. I only have a hc1400 and a hc2400 and my stock alt is pretty beefy 130 amps i belive

fo rillz son!

 

[mazzasec 5,000+ posts]

Ok well i upgraded to 1/0 gauge for my ground. Played it for about 5 mins i thought i had fixe the problem then it started cuttting out again. I then parked it and revved my engine up to about 4000rpms and it still cut out.

 

[tommyk90 5,000+ posts]

Ok well i upgraded to 1/0 gauge for my ground. Played it for about 5 mins i thought i had fixe the problem then it started cuttting out again. I then parked it and revved my engine up to about 4000rpms and it still cut out.

What is your voltage drop?

Did you set your gains with a DMM?

 

[avs20 10+ year member]

Seriously...you need to start listening here. Get voltage readings. Quit talking about 2 ohms. That amp is drawing a LOT of current. Are you sure the subs are wired to a final 2 ohm load? Check everything with a DMM, and set your gains with a DMM. Start from scratch to eliminate everything.

 

[dumpin907 10+ year member]

i would try a new ground location. my zx2500.1 was cutting out as well, soon as i switched my ground location it never cut out till this day.

 

[mazzasec 5,000+ posts]

I am about to go to walmart and get me a dmm then give everything a try. How do i properly set the gains using the dmm though?

 

[avs20 10+ year member]

Calculate the voltage you need. sqrt(Watts X Impedance) = Voltage.

Burn a test tone to cd(people use diff ones for this). I personally use a 45hz tone. Get all your settings on HU in order. Unplug speaker wire to sub, and mids/highs amp if you have one. Turn volume to 3/4. Put test leads in + and - of sub amp. Turn gain till you reach your voltage.

 

[mazzasec 5,000+ posts]

so since I need 2500 watts 2ohm i do 2500x2=5000

Then put the neg and pos leads into the amp and turn the gain til it hits 5000? on the dmm

 

[bass-aholic 10+ year member]

Im sure 45hz would work but seeing as AC alternates at 60hz i would play a 60hz tone so the DMM will recognize it. It might get a more accurate reading. Might not make a difference, I would just rather be safe than sorry.

Calculate the voltage you need. sqrt(Watts X Impedance) = Voltage. Burn a test tone to cd(people use diff ones for this). I personally use a 45hz tone. Get all your settings on HU in order. Unplug speaker wire to sub, and mids/highs amp if you have one. Turn volume to 3/4. Put test leads in + and - of sub amp. Turn gain till you reach your voltage.

 

[avs20 10+ year member]

Ive always used 45hz without issues but I know many people use a 60hz tone.

 

[mazzasec 5,000+ posts]

Hey avs is this the right why to test the gains using the dmm?

2500wattsx2ohm=5000

Then put the neg and pos leads into the amp and turn the gain til it hits 5000? on the dmm

 

[bass-aholic 10+ year member]

Hey avs is this the right why to test the gains using the dmm?
2500wattsx2ohm=5000

Then put the neg and pos leads into the amp and turn the gain til it hits 5000? on the dmm

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

 

[avs20 10+ year member]

You forgot to take the sqrt of 5000. So youd be looking for 70.71 volts.