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2 12 kicker cvr's, cadence txa1000d amp


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tehmenace 
Member - Posts: 22
Member spacespace
Joined: January 02, 2008
Location: Illinois, United States
Posted: March 20, 2008 at 3:30 PM / IP Logged  
Ok, My problem is with this setup: 2 12" Kicker CVRs and a Cadence TXA1000D amplifier. I was listening to my music a couple days ago and I turned it up 2 notches higher that I have ever turned it up before. It was playing fine for about 5 minutes and then all of the bass cut out. The amp did not have its red light come on and it stays on. I can still hear treble and mid out of my speakers, but no bass. If I keep my car shut off for a period of time and come back there will be bass, but only for a few min and that time gets cut shorter if I turn the volume up higher.
I have checked my ground from my amp and it is connected securely. This setup has been working fine for the past 3 months. The only thing that has changed is that I needed to get a new battery installed a few weeks ago because my old one had a crack.
I am stuck. I don't know what the problem is because my amp keeps working, and then not working. I am forced to come to others for advice. Please help me figure this out ASAP. I appreciate all of the help.
audioman2007 
Copper - Posts: 580
Copper spacespace
Joined: February 20, 2007
Location: United States
Posted: March 20, 2008 at 3:38 PM / IP Logged  
So your amp shut off or stayed on? Did you feel the amp when this happened to see if it was hot? It sounds to me that when you turn the volunme up, your amp is putting out more constant power than it can handle. Your amp is going into protect due to it overheating. Try putting all the settings back to where they were, let the amp sit until its nice and cool, and try again. If the problem happens again, see if the protect light comes on or atleast watch when you turn the system on (watch the amp itself) so that if the bass does cut out, you can see if a light does come on, blinks, or whatever.
tehmenace 
Member - Posts: 22
Member spacespace
Joined: January 02, 2008
Location: Illinois, United States
Posted: March 20, 2008 at 3:43 PM / IP Logged  
The amp is staying on and it is not hot at all. I put the settings down and let the car sit for a day and then I tried putting them up just a little bit today and it starts to cut the bass out again without the red light coming on. That is why I am confused as to what the problem is. It had been working fine on the previous settings for the past 3 months.
audioman2007 
Copper - Posts: 580
Copper spacespace
Joined: February 20, 2007
Location: United States
Posted: March 20, 2008 at 3:50 PM / IP Logged  
Your amp is clipping. If you were to take a headunit, wire 4 speakers to it and max out its volume,  the speakers would cut in and out. Thats clipping. You have the amp gain (level) turned up too high which is causing it to clip. This will damage the amp in no time. I would first turn the gain down. Then turn the headunit on and put its volume at the volume you desire. Then slowly turn the amps gain up until it starts to clip, then back it down a hair. It should be good then.
01trublugt 
Copper - Posts: 112
Copper spacespace
Joined: January 08, 2007
Location: United States
Posted: March 20, 2008 at 3:53 PM / IP Logged  

So the music stops playing, but the amp stays on and is not hot.

Do you have another speaker that you could hook up to the amp? If the amp is not hot and not shutting off I would start with the speaker as it is the easiest.

If you hook another known to be good speaker up and it does the same thing, then your problem is from the amp back.

Are your highs running off of an amp as well? If so pull the RCA from your highs amp and plug it into the Cadence and see what happens. If thr problem persists you can now say it is the amp as you have eliminated the speakers and everything before the amp as well. If everything works as it should when hooked to the highs amp's patch cord then you know the problem is not the amp but rather the patch cable, highly unlikely, or the sub output on the radio.

All in all should take about 20min or so to go through the above and figure out where the problem lies.

tehmenace 
Member - Posts: 22
Member spacespace
Joined: January 02, 2008
Location: Illinois, United States
Posted: March 20, 2008 at 3:58 PM / IP Logged  
Everything including my highs are all wired into this one Cadence amp. The music continues to play while there is no bass, but it does sound distorted when a bass note comes. I'm gonna go back out to it and try putting the gain down again and slowly put it back up. Hopefully this will solve the problem.
audioman2007 
Copper - Posts: 580
Copper spacespace
Joined: February 20, 2007
Location: United States
Posted: March 20, 2008 at 4:00 PM / IP Logged  

01trublugt...... he said that he loses bass but still gets his highs and mids from his speakers. He obviously has his speakers wired to the headunit. The speakers have nothing to do with his amp and subs. He has a clipping issue, unless he meant what you said, but thats not what I got out of it.

tehmenace 
Member - Posts: 22
Member spacespace
Joined: January 02, 2008
Location: Illinois, United States
Posted: March 20, 2008 at 4:11 PM / IP Logged  
Ok, I just went out and set everything down to original. Now I am not getting any movement out of my subs. They were moving earlier today. I slowly turned the gain up and only got bass out of my speakers throughout the car. They were not getting any bass earlier when the amp kept cutting out.
tehmenace 
Member - Posts: 22
Member spacespace
Joined: January 02, 2008
Location: Illinois, United States
Posted: March 20, 2008 at 4:12 PM / IP Logged  
Actually, You are right. I only have the RCAs going into the amp, no speakers.
01trublugt 
Copper - Posts: 112
Copper spacespace
Joined: January 08, 2007
Location: United States
Posted: March 20, 2008 at 4:13 PM / IP Logged  

Are you sure you posted the correct model # on that amp?????

From what I am getting a Cadence TXA1000D is a Mono i.e. single chanel amp.

Are you running your highs and your sub off of a mono amp??????

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