2 12" kicker cvr's, cadence txa1000d amp
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=103252
Printed Date: April 28, 2024 at 11:48 PM
Topic: 2 12" kicker cvr's, cadence txa1000d amp
Posted By: tehmenace
Subject: 2 12" kicker cvr's, cadence txa1000d amp
Date Posted: March 20, 2008 at 3:30 PM
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.
Replies:
Posted By: audioman2007
Date Posted: March 20, 2008 at 3:38 PM
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.
Posted By: tehmenace
Date Posted: March 20, 2008 at 3:43 PM
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.
Posted By: audioman2007
Date Posted: March 20, 2008 at 3:50 PM
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.
Posted By: 01trublugt
Date Posted: March 20, 2008 at 3:53 PM
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.
Posted By: tehmenace
Date Posted: March 20, 2008 at 3:58 PM
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.
Posted By: audioman2007
Date Posted: March 20, 2008 at 4:00 PM
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.
Posted By: tehmenace
Date Posted: March 20, 2008 at 4:11 PM
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.
Posted By: tehmenace
Date Posted: March 20, 2008 at 4:12 PM
Actually, You are right. I only have the RCAs going into the amp, no speakers.
Posted By: 01trublugt
Date Posted: March 20, 2008 at 4:13 PM
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??????
Posted By: tehmenace
Date Posted: March 20, 2008 at 4:17 PM
01trublugt wrote:
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??????
Yes, That was my mistake.
Posted By: 01trublugt
Date Posted: March 20, 2008 at 4:19 PM
tehmenace wrote:
Actually, You are right. I only have the RCAs going into the amp, no speakers.
well if you don't have the speakers connected to the amp how do you expect sound to come from them?? Tell you what lets eliminate some of the confusion here. 1.) Starting at your radio how many RCA cables run to amps in the car 2.) How many amps are in the car total? 3.) What powers the highs(smaller speakers inside the cars that play mids and highs) 4.) Are you certian of the model # on your amp because that is a mono amp https://www.cadencestore.com/ProductCart/pc/viewPrd.asp?idcategory=125&idproduct=380
Posted By: 01trublugt
Date Posted: March 20, 2008 at 4:22 PM
tehmenace wrote:
Yes, That was my mistake.
What was that you gave us the wrong model # or that you were trying to run 2 subs and your highs all off of a single chanel amp???
Posted By: tehmenace
Date Posted: March 20, 2008 at 4:24 PM
01trublugt wrote:
tehmenace wrote:
Actually, You are right. I only have the RCAs going into the amp, no speakers.
well if you don't have the speakers connected to the amp how do you expect sound to come from them??
Tell you what lets eliminate some of the confusion here.
1.) Starting at your radio how many RCA cables run to amps in the car
2.) How many amps are in the car total?
3.) What powers the highs(smaller speakers inside the cars that play mids and highs)
4.) Are you certian of the model # on your amp because that is a mono amp https://www.cadencestore.com/ProductCart/pc/viewPrd.asp?idcategory=125&idproduct=380
Ok.
1) There is one set of RCAs running to the back for the left and right channel.
2) There is only one amp in the car.
3) The speakers are wired into the head unit.
4) Yes, That is my exact amplifier.
Posted By: 01trublugt
Date Posted: March 20, 2008 at 4:34 PM
Got ya. Ok so now you are not getting any movement out of your subs at all. On the other hand all of the speakers inside of the car that are wired to the head unit are getting bass. Now for the bass on the inside speakers are they supposed to have it but it went out with the subs and is now coming back. Or is it where instead of putting out mids and highs they are putting out bass only?
Posted By: tehmenace
Date Posted: March 20, 2008 at 4:36 PM
01trublugt wrote:
Got ya.
Ok so now you are not getting any movement out of your subs at all.
On the other hand all of the speakers inside of the car that are wired to the head unit are getting bass.
Now for the bass on the inside speakers are they supposed to have it but it went out with the subs and is now coming back.
Or is it where instead of putting out mids and highs they are putting out bass only?
The speakers werent getting any bass at all earlier but now they are, along with treble and mid.
Now the subs arent moving at all.
Posted By: 01trublugt
Date Posted: March 20, 2008 at 4:46 PM
What head unit are you using? Is there an internal X-over in the head unit?? If you put your nose close to the amp does it smell like anything is burnt? Do you have an iPod? I always keep a cable that has RCA's on one end and a stereo jack on the other. If I am having problems I can plug in direct to the amp with it and eliminate or make suspect everything in my system that comes before the amp. My confusion is that since your highs are running off of the radio, they are independant of your sub amp. Other than a setting on the radio itself nothing should make them change from playing some bass/all bass/no bass.
Posted By: audioman2007
Date Posted: March 20, 2008 at 6:14 PM
Hold on. Since your headunit has a sub output, does it also have a setting where you can turn the sub output off? For instance, my headunit has 2 sub outputs. I can go into my menu and go to sub output and change the DB's or mute that ouput which would stop my amp (but not turn it off). Check to see if yours has that.
Posted By: jmelton86
Date Posted: March 20, 2008 at 6:15 PM
How are the subs wired to the amp? I amp thinking you have a tinsel lead that is coming off one of the subs. If they are wired in series anywhere then this is a good possibility. ------------- 2013 Kia Rio -90a alternator
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Posted By: audioman2007
Date Posted: March 20, 2008 at 6:46 PM
That is very true, and the only way to check that is to pull the subs out and look at them from the back.
Posted By: tehmenace
Date Posted: March 20, 2008 at 10:35 PM
Ok, I set everything to 0 (gain, bass boost, sub volume control, etc.) and turned my music up to about 3/4 volume on the head unit and slowly turned the gain up. The subs started to hit harder and harder and then I got to a volume where it wasnt even close to sounding distorted at. It was hitting fine for about 3 minutes at a little less than 1/2 of the head unit volume and then it cut out again. There was no bass coming out of the subs or speakers.
I am going to try and remove a sub tomorrow and see if anything is coming loose inside the box.
Posted By: audioman2007
Date Posted: March 21, 2008 at 9:56 AM
Ok, so now when your sub cut out, you also lost bass to your speakers? But your sub is wired to the amp and your speakers are wired to the headunit? That totally sounds like a headunit problem dealing with its bass output. It could very well be the internal amplifier is bad.
Posted By: 01trublugt
Date Posted: March 21, 2008 at 11:15 AM
I am really leaning towards a head unit issue as I posted earlier. If under proper working conditions, your subs play as normal and there is bass comming from your highs(inside speakers) then once the subs cut out, the bass from the inside speakers cuts off as well it has to be something internal on the radio. If there was something loose on the back of the subs it should only effect the subs, the problem will not go through the RCA's and change the way the head units internal amplifier puts out. Is there any way you could clarify this: 1.) What brand and model # head unit. 2.) Under normal operating conditions is there bass comming from your highs?
Posted By: tehmenace
Date Posted: March 21, 2008 at 5:53 PM
Ok. I have a Panasonic CQ-C3333U head unit. And yes, under normal conditions when everything is working there is bass coming out of my speakers along with bass from the subs.
Posted By: audioman2007
Date Posted: March 22, 2008 at 12:38 PM
Yea it has to be something internal with the headunit. Try unplugging the RCA's so that there is no sub then listen to your music. If the problem goes away, then you have a problem with the RCA's on the headunit. You could then disconnect the speaker outputs from the headunit but keep the RCA's plugged in so that you ONLY have subwoofer working and see what happens. What I am trying to figure out is when this problem happens. If it ONLY happens when the speakers and sub are hooked up, then you have a problem with the headunit. The headunit is having problems powering both things (which there shouldnt be a problem).
Posted By: tehmenace
Date Posted: March 25, 2008 at 7:20 PM
Ok, I just got back from a trip so I haven't been able to try anything.
I just went out and unplugged the RCAs from my headunit and there was bass coming out of the speakers but it was really faint and very distorted sounding. All settings on the headunit were on 0. When everything was working I remember being able to feel the bass coming out of those speakers when my leg was up against it while driving. There is very little bass at all now.
I am thinking I need to go out and purchase a new HU.
Posted By: audiocableguy
Date Posted: March 25, 2008 at 10:25 PM
"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". audioman 2007, 1st page.
This is 100% false. A forum search 'clipping' will explain the facts.
Posted By: tehmenace
Date Posted: March 26, 2008 at 11:02 AM
Do you believe that my head unit is bad?
Posted By: 01trublugt
Date Posted: March 26, 2008 at 11:56 AM
Ok here is something I just have to ask. You are running 2 12's for bass however you are using the headunit to power your highs. I can only imagine that your bass(when everything was working) was wayyyyy louder than your highs. Now you said the bass is not there like it used to be, well it is there but faint and distorted. Any chance you blew your speakers?????? My guess is, and again this is just my guess: You were running the highs with what, maybe 12 watts RMS from the head unit? Depending on how you had the subs wired anywhere from 400-1000 watts to the 12's. I think you were turning the volume up on the head unit too much trying to get the highs to equal the bass and blew the speakers. How easily can you access the front side of your interior speakers? If you can get to them easy with the system off push the woofer in, if it feels stiff and gritty and does not go in and out smoothly then you blew your speakers. More than likely your head units amp was clipping and killed the speakers. Next for the subs do the same thing, push on it and see if they slide in and out smoothly, if not you know what happened. If they do you really need to find an external music source to test them. I use my iPod, get a cable with RCA's on one end and a headphone jack on the other end. Hook it up and press play. If the subs work like they should then your problem is either your head unit or your RCA cables. To eliminate the RCA cables, get another RCA cable that you know is good. Pull the radio, disconnect the ones you are using now and just run the new ones from the head unit to the amp. If the problem is still there you know it is the head unit, if not then you know it is the RCA's. Now if the problem with the subs persists no matter what you do you have to test them seperate from the amp. Normally I would just hook them up to my home stereo reciever and see what happens. If you don't have access to a home reciever try and see if maybe a friend with a working system will let you hook up your subs in his car real quick to see what happens. There are only so many parts in a car stereo, this is not rocket science. Here is the steps I would take address the subs first and before you start to isolate the subs issue I would disconnect all the interior speakers that are hooked up to the head units internal amp: 1.) Hook up external music player to subs and see if they work. If it works, go to step 2, if it dosen't skip to step 3 (This step will eliminate the speakers and the amp if it works, leaving only the head unit and RCA's as suspect; if it does not work it will leave the amp and speakers as the suspect) 2.) Hook up a known to be good RCA cable in place of your existing one. If it works change out RCA's if it does not work change out head unit.(This step will eliminate the RCA's and if the problem is still there leaves only the head unit) 3.) Hook up subs to an external amplifier that you know works. If it works replace amp, if it dosen't pull the subs from the box and check all wires and connections including tensile leads from the voice coils to the binding posts. If all the wiring is ok then replace subs. Now your bass issue should be solved lets move onto the highs: 1.) Press on the speakers to see if they are blown, if they are blown then find a refrence speaker that you know is not blown and hook it up to the head units internal amp one channel at a time and see if you get full non distorted sound. If so simply replace all of your internal speakers and call it a day. If they are not blown replace head unit as the internal amp is screwed up.
Posted By: tehmenace
Date Posted: March 26, 2008 at 11:35 PM
Before I go out and check this, Does it make sense that all 4 speakers would get blown at the same time? They are 2 different sets of speakers, 1 pair of 6.5s and 1 pair of 6x9s. The are both different brands also.
Posted By: 01trublugt
Date Posted: March 27, 2008 at 8:28 AM
Its up to you if you want to go through checking it all or not. You wanted to get to the root of the problem and I am trying to help you do that. Is it possible that all 4 speakers could blow at the same time.....yeah it is. You have to realize something here, you were running 2 12's powered by an external amp. Your highs were being powered by your head unit. Even before you had a problem they were probably distorted all to hell and your head unit was probably clipping every time you turned the volume up you just could not tell because you couldn't hear it over the bass. Thoes extra 2 notches that you turned it up were just the straw that broke the camels back. If you want to just run out and buy a new head unit feel free, but if that is not the problem then you are back to square one and just spent money that you didn't need to. In all honesty I could go through all of the checks I posted above in under an hour.
Posted By: tehmenace
Date Posted: March 27, 2008 at 11:52 AM
Ok, Thanks. I'll go out and run through your steps as soon as this damn snow stops... I see what you are saying though. One more question. If the speakers were blown would they be able to produce good, clean sounding bass? I ask this because when I turn my car on after it has been off for a while It will sound completely normal like it used to, but after a few minutes it will start to cut out again.
Posted By: 01trublugt
Date Posted: March 27, 2008 at 1:26 PM
No I don't think they would, sounds as if when it gets hot things start acting funny. If you have a Pep Boys/Auto Zone/Wal Mart near by might be worth it to go buy some $20.00 head unit with atleast 1 pre amp output on it and see if the same thing happens with the cheapie head unit. If the problem is fixed you could just go out and buy a nicer head unit as you know it will fix the problem. In the end you might be out $20-$30 if you can't return the cheapie.
Posted By: tehmenace
Date Posted: March 27, 2008 at 4:54 PM
Ya, Everything is very confusing right now. I need to start eliminating possible problems. I might just go out and buy a new head unit soon anyway. It doesn't bother me to spend that money on one and the unit I have now isn't anything special. I'll post again if I determine what was wrong.
Posted By: tehmenace
Date Posted: April 04, 2008 at 11:58 PM
Ok, I went out to my car today and tried to hook up my ipod to my amplifier and see if the subs would hit. I plugged the RCAs from my ipod directly into the input on the amplifier. There was absolutely no sound coming from the subwoofers at all. I then plugged the RCAs from the head unit back into the amplifier and the subs would hit. They would stop hitting if I turned the volume up too loud.
I also turned the volume on my head unit up loud today when all of the bass was cut out to see what would happen. I could tell that there was a little bit of bass coming from my speakers but the sound was quite distorted. I did not know if this was because of the high volume of the music or what (the fact that it sounded all distorted). I turned the bass up on the head unit and the bass was louder on the speakers. But if I turned the volume down to about halfway, there was very little to no bass at all.
I am not sure if I connected my ipod up to my amplifier correctly. I took a pair of cables with a headphone jack on one end and RCA cables on the other and plugged that into the amplifier. Is there anything else I need to do in order to get sound out of the subs? Does my head unit need to be off or something?
Posted By: 01trublugt
Date Posted: April 06, 2008 at 5:40 PM
Ok for the iPod hook up, you did it right, headphone jack into the iPod, RCA's on the other end to the amp. One thing though the key to the car has to be on in order for the amp to turn on. I would imagine you turned the volume up on the iPod but if not just double check that and make sure the amp is powered up when you hook the iPod up to it. I would not be surprised if the head unit and the interior speakers are all fried. There is a possibility that the amp and subs are still ok but who knows. SOunds like some stuff my little brother would do to be perfectly honest with you.
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