Amp and Wiring Question

[jhind1]

I'd just like to thank anyone who reads this as I am a newbie to this website but I have installed stereo's and wired my fair share of amp's and subs. I came across a problem that I have never seen before.

I was wiring up an amp with 2 10" Sony subs. The amp I was using was a crossfire 1000W. I originally hooked the subs up and only one of them was working. I tested and found out the amp was the bad component. I went out and now have an alpine amp 1000W mono channel. The power is currently working on the amp but when I hookup the subs they do not work at all. There was no noise, they just do not work. I am not sure if there is no power getting to the subs or not. I was going to bridge those together but neither sub works at all.

Has anyone come across this problem and how do I fix?

Thank You

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[pickup1 5,000+ posts]

are you sure your subs are good?

 

[Tone415 10+ year member]

Check the wires inside the sub box.

 

[jhind1]

On the first amp I found out both subs were working due to I tried each of them on the set of contacts taht worked. I know the subs both work. I also double checked the wires inside the box. It pretty much baffled me when I started doing it.

The only thing I can think of is maybe when I originally hooked up the subs to the new amp that they went right then and there. Wouldn't I have heard some sort of sound that it went bad if that was the case though?

I have even went back and double checked all of my wiring and everything is correct.

 

[Tone415 10+ year member]

Check ur gain on the amp. or try a diff. pair of subs with the amp. Your wiring could be wrong sumwere if the subs still dont work.

 

[PatFitz9 10+ year member]

Get a DMM and see if any voltage is going to the subs. Then, double check the wiring. If they are getting power, and wired up correctly, your subs are F'ed.

 

[jhind1]

If the amp has power then I am thinking it has to be something with teh subs. i have an extra set of subs, I can try those and make sure the wiring is correct. It is just stumping me because I had them working.

 

[jhind1]

What happens if I am not actually getting any power to the subs, would that mean the amp is bad. I mean the amp has the power going to it as you can tell by the text light.

 

[PatFitz9 10+ year member]

If the amp isn't putting out power, than yes, it's bad //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

Just because the amp is receiving power doesn't mean it is outputting anything.

 

[FurbiesAndBeans 10+ year member]

RCAs by any chance bad? Make sure the amp is getting music. Bad ground? Going into protect?

 

[jhind1]

On th back on the sony headunit there at 3 sets of RCAs. There is a BUS input and rear output as well as front output. Which should i plug the RCAs into? If any? What is another solution?

 

[TKCARAUDIO 10+ year member]

Dont use Bus its for a PA system. Try to use the Rear and see what it does. Also check your actual RCA Cables...

 

[jhind1]

Sounds like the rear speakers now are using the amp. And still nothing with the subs.