Here's my system: Pioneer Premier PRS-880, Butler Tube Driver TD750 pushing a set of Alpine Type R component's passively and a Butler TD1500 pushing an Eclipse Aluminum sub bridged (Just installed the amp and sub 2 weekends ago)
Problem: My front stage cuts in and out, but doesn't turn completely off, rather loses the upper midrange, say from 1KHZ to 10KHZ. Tweeters seem normal both sides. The woofers, when I hear them go out, can be made to have the full range when I turn up the volume to almost my max (max is 40 so say 37/38)
So I wasn't sure what was going on lately. This problem has been around for a year now off and on, say a few times a month but as soon as I turn up the volume it plays full range and then it would be good for a few weeks....until this past weekend. I was on a 4 hour road trip and after about an hour both sides started going out. Previously it had only been the right side so that caught me off guard. When I got home Sunday I traced all the wires thinking there was a short somewhere but found nothing. Pulled the door panels off and pulled out the speakers looking for a loose wire somewhere, nothing. Bypassed the crossovers to make sure they weren't the problem, sound still cut out.
Yesterday I got to wondering if the front outs from the HU were bad, was gonna switch them to the rear tonight to check. Then on the way to work this morning it dawned on me, the HU outputs signal, why would it only output half of the frequencies? It wouldn't to my knowledge. The Amp, bascially, amplifies the signal. The speaker's voice coil and cone reproduce the frequencies/sound. So if the speaker stops playing certain frequencies, increasing the volume drives more power into the voice coil maybe "sparking" it to play? The entire right stage was crackling yesterday, tweeter and woofer, after I pulled them to check the cones for cracks or the wires from the spider to the cone they were fine. This morning the right side was fine and the left side was only playing half of its sound until I turned up the volume.
I'm thinking after all this its the speakers. They are the ones exposed to the elements, They are nearly 5 years old, they have been in three different vehicals. Funny thing is my road trip this past weekend was to listen to new high end front stage speakers. Dyn's, Morel's, Hertz, Rainbow's and Seas. But i think I'm going with CDT's. I almost want to go and buy a set of cheap components and drop them in to make sure the speakers are the problem. To me it's the only thing that makes sense.
Feel free to ask questions I may have missed explaining.
RCAs can get pinched.. not a dead short, but maybe close to short if dielectrics get thin in a pinch..
Open your passives while it's playing and try moving components, any oddities? solder connections can crack... Used to be 60+% of the repairs I did on HU's back in the day...
Start with the most obvious (connestions) and work toward the more complex... it's the basis of troubleshooting...
Quote:
The years passed, mankind became stupider at a frightening rate. Some had high hopes the genetic engineering would correct this trend in evolution, but sadly the greatest minds and resources where focused on conquering hair loss and prolonging erections. - Narrator: Idiocracy
RCAs can get pinched.. not a dead short, but maybe close to short if dielectrics get thin in a pinch..
Open your passives while it's playing and try moving components, any oddities? solder connections can crack... Used to be 60+% of the repairs I did on HU's back in the day...
Start with the most obvious (connestions) and work toward the more complex... it's the basis of troubleshooting...
Yup, get that. As for the crossovers, I bypassed them completely and still have the issue. I took the input (from the amp) to the crossover, disconnected it and wired it directed to the speaker...still had crackling/cutting out.
I had a former set of speakers that the wire from the spider to the cone was cracked and you couldnt see it due to it was a small crack...it cut in and out too but not half the spectrum of sound, just the whole speaker on then off. I didn't know what was wrong until it finally deteriorated enough to break completely. guess this is why I thought it was the speakers.
I will take the RCA's completely out and check them too, I know the sub amp's are good because I just put it in a few weeks ago, but the front stage has been in there a year. There may be some issues at the back of the deck due to i didn't leave much slack in them originally...or I may just replace them with better stuff tonight too
What do you think would cause the speaker to "come back on" full spectrum of frequencies when increasing the volume?
Yeah check ur rca's could be bad connection grounding out on each other / floor board etc...
Right, I think so too. The baffling part is the speakers don't cut all the way off. They only cut out the upper midrange or sound. Say 1khz to 10khz. Guess that's why I thought it was the speakers or the crossovers and I've already ruled out the crossovers. It's something I've never encountered before so I thought I would ask for other opinions...not my first rodeo no offense.
No prob. I had this going on once drove me crazy.. when I found it it was like duhhh....lolol
Now that I think of it...when I turn the volume up, the deck is outputting more voltage, which could cause the RCA's to work properly for a bit if they are pinched. hmmm...now I definetly replacing these tonight.
Test with the new rca run over everything, before you start ripping things out... might NOT be it..
Quote:
The years passed, mankind became stupider at a frightening rate. Some had high hopes the genetic engineering would correct this trend in evolution, but sadly the greatest minds and resources where focused on conquering hair loss and prolonging erections. - Narrator: Idiocracy
Test with the new rca run over everything, before you start ripping things out... might NOT be it..
For sure man! I was just gonna run the new cord back there first just to see. But I will replace the cable no matter what...I kinda skimped with the cable that's on there now. :-P Since I'll have the dash apart anyway...
Front Stage cutting in and out
Re: Front Stage cutting in and out
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