Profile CA1200 goes into protection mode

[tristanlee85 10+ year member]

It's been a while since I looked at the amo because this happened a long time ago. Basically, as soon as the amp gets power, it goes into protection mode. It will do it with the input and output hooked up, just the input hooked up, just the output hooked up, or just the POS and NEG power wires. As soon as it gets power, it goes into protection mode.

What could this be? I've got the amp apart and I didn't notice anything that would obviously fried.

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[bhsswrstlr 10+ year member]

quite possible that your voltage readout is too low for the amp to work properly or your impedence level is too low

 

[tristanlee85 10+ year member]

Well, I think I blew the suba long time ago, but I'm not sure how to check. This Profile is supposed to put out 900rms x 1 @4ohm. I have a FUBR12 at 4ohm, but it hasnt been hooked up for a while because I think I blew it. Sould the amp notice no load and automatically go into protection mode? If so, is therea any way to check to see if that's the problem other than buying a new sub? I don't assume a 4ohm resistor would allow me to check.

 

[Nukedsodapop 5,000+ posts]

Check for shorts or exposed wires, thats why my amp was going into protect

 

[tristanlee85 10+ year member]

The only think I can think of would be the inputs because I remember when I had my Monster wiring, I tried to pull the RCA off the input and it pulled part of the input connector out. I doubt that is it though considering I completely desoldered the RCA input from the amp. Now there is no way it is shorting. I did that just to see if the input may have been the problem.

 

[ighettoboyi 10+ year member]

kinda OT but cl1200 or ca1200? i dont remember a ca1200 but i could be wrong, it's been a while since i've had profile

 

[tristanlee85 10+ year member]

It's a CA. There were both CL and CA models. Both rated at the same output. I think the appearance was different. Not sure though.

 

[tristanlee85 10+ year member]

So, if the sub is blown, would the resistance across it be than 4ohm (since it is wired up as 4 ohm)? I went to Radioshack and bought 2 RCA plugs that I will solder in myself. I've looked over the amp and I didn't notice anything at all. If the sub wasn't hooked up (meaning there is no load), would the amp automatically go into protect mode?

 

[Mr. Loki 5,000+ posts]

I would say go back and check your wire connections such as the leads on your sub if they are touching in any manner/tinsel leads. Check your ground wire also.