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i have a ida-x200 connected to a eqs746. i just hooked up some new RCA's to my 4-channel amp. when i put the master volume all way down on the eqs746, i still hear music playing from my rear speakers. on the headunit, i put the volume at 75%. and when i turn up the master volume it sounds fine but only the right front speaker works and all the rears, but no sound from the left front speaker. i know all my speakers are fine and not blown for sure. and all rca's are on the opposite side of the power wire going to the battery.

my 4-channel amp is in the trunk, and the RCA's are under the subwoofer box. will it effect the sound if they are being smashed under something heavy. because my box is pretty heavy.

what can be the reason for this? thanks.

At the amp, switch the front left and right patch cords. Connect the left to the right input of the amp and connect the right cable to the left input jack of the amp. Which speaker does not play now?

no it wont but I would check you connections on your speaker. and don't uses the factory wire use monster wire.

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ksaudio

ks audio wrote:

no it wont but I would check you connections on your speaker. and don't uses the factory wire use monster wire.

THAT'S helpful... How do you expect that changing the speaker wires will fix his problem? Not to mention the fact that Monster is a complete waste of money...

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

i am an idiot wrote:

At the amp, switch the front left and right patch cords. Connect the left to the right input of the amp and connect the right cable to the left input jack of the amp. Which speaker does not play now?

now the left speaker plays and the right doesnt.

thanks :].

Put those RCA connections back it their original locations. Now do the same thing behind your EQ. Just to the front channels. Let us know what happens then.

imupabove wrote:

thanks :].

This is called "troubleshooting". He is trying to determine what component in your signal chain is failing. Just follow ALL the steps suggested, in the ORDER suggested, and i am an idiot will help you locate the offending device.

He asked you to swap patch cords at the amp - the symptom followed that swap - what this means is that the amplifier (and the speakers, wires and all associated connections) is/are working perfectly, and is/are not the offender(s). If you swap your RCAs at the EQ, as asked, and the symptom does not move, then the RCA's are the weak link. If it does move, then some device further up the signal chain (the deck, interconnects, or the EQ) will be the defect... See how this works?

You asked. You are being helped. Sarcasm will get you nothing but nothing - i.e. no help.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

do you know the reason why whenever i put the master volume on the EQ, i still here music from the rear speakers only (low sound)? also i hear a whining sound when i accelerate.

i never had this problem before though using the EQ.

imupabove wrote:

i never had this problem before though using the EQ.

Pioneer Headunit?

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You were on such a roll, you know, me suggesting something for you to try, and you trying it and posting back what you found. Then we got to the second step of the process, remember the part about reconnecting the RCA cables back to the amp and then switching them at the output of the EQ, remember all that? What happened when you switched the cables behind the EQ?

i found out on of the rca's was not connected to the EQ. sorry! i hear music from all 4 speakers now. but the only problem is and it bugs be a lot, i hear hissing noises from my rear speakers. i cant hear it a lot when the volume is all the way down. and every time i take out the key or whenever the 4-channel amp turns off, i hear some kink of popping noise from the rears speakers. also they move while it makes that popping noise. i heard that it is normal if hissing noise occurs, but when i have the volume all the way down its really irritating.

icearrow6 wrote:

imupabove wrote:

i never had this problem before though using the EQ.

Pioneer Headunit?

no, its a IDA-X200.

Several weeks ago, I suggested that you remove the EQ from the circuit to see if that got rid of the noises. Did you ever do that? If so, what did you figure out?

darn! i forgot i should of done that earlier today! now i have everything all connect and ready to go. i will try it tomorrow.

so connect everything except the EQ right?

thanks.

i havnt bypass the EQ yet because i was busy to today. but do you know why only the rear speakers make that *hissing* noise and when ever the amp turns off it makes popping sound?

what do you have the remote wire from the amp hooked up to? you might just need to move your remote wire to a different turn on wire like an ignition or accessory wire in the car.

try turning the gain down on the amp to get rid of the hissing sound. my guess is that you have a 4 channel amp and the rear speakers are turned up more than the front speakers so you only hear hissing out of the rear speakers. if that doesn't work then try lowering the master volume on your EQ and either turn your radio up a little more or give your amp a little more gain( and i mean little) to compensate for the loss of volume from the eq.

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soundnsecurity wrote:

what do you have the remote wire from the amp hooked up to? you might just need to move your remote wire to a different turn on wire like an ignition or accessory wire in the car.

try turning the gain down on the amp to get rid of the hissing sound. my guess is that you have a 4 channel amp and the rear speakers are turned up more than the front speakers so you only hear hissing out of the rear speakers. if that doesn't work then try lowering the master volume on your EQ and either turn your radio up a little more or give your amp a little more gain( and i mean little) to compensate for the loss of volume from the eq.

i have the remote wire connected to remote wire from the headunit. last time i turn down EVERYTHING: deck, eq, and amps and the hissing is still there. i will troubleshoot more today. thanks for your help.

I still bet it's a bad ground issue, either the amplifier ground, the HU ground, the EQ ground, the engine ground strap or a speaker wire that's grounded.

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Support the12volt.com

yeah, if you can turn down everything and you still have the hissing then you probably have a poor ground or your equipment is just noisy. where did you ground the EQ? did you use the factory ground from the radio or did you make a new ground?

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imupabove wrote:

yeah i thought so too.

and for all the people that said this can make my system sound worse man my system sounds and feels so much better with this EQ! no hard feelings i can understand why people mentioned that though. i love this EQ.

You guys will never guess what my money is on.

soundnsecurity wrote:

yeah, if you can turn down everything and you still have the hissing then you probably have a poor ground or your equipment is just noisy. where did you ground the EQ? did you use the factory ground from the radio or did you make a new ground?

my EQ's and headunit's ground wire is connected to my car's wire harness (black wire/-12 volt wire). i cant find a good solid ground for both. you follow me? is this why its making that hissing noise? thanks.

imupabove wrote:

my EQ's and headunit's ground wire is connected to my car's wire harness (black wire/-12 volt wire). i cant find a good solid ground for both. you follow me? is this why its making that hissing noise? thanks.

Probably

so i should find a ground (chassis) for both, eq and the headunit?

imupabove wrote:

soundnsecurity wrote:

yeah, if you can turn down everything and you still have the hissing then you probably have a poor ground or your equipment is just noisy. where did you ground the EQ? did you use the factory ground from the radio or did you make a new ground?

my EQ's and headunit's ground wire is connected to my car's wire harness (black wire/-12 volt wire). i cant find a good solid ground for both. you follow me? is this why its making that hissing noise? thanks.

a god spot to ground might not be very obvious. you might need to run a wire down to the metal under the dash but a good ground that is a bit long is always better than a short bad ground. and try to use a reasonably thick wire

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Grounding all components to the same location will sometimes help with noises like yours. You may want to ground the radio and eq to the chassis of the car somewhere under the dash. Then take a 10 Gauge wire also connected to that same point, then run it to the where your amps are grounded, and connect it to there too. The above will probably not help you, but bypassing the eq will at least keep us from chasing our tail.

cool. i should of thought of that, grounding some where under the dash. no i need to find a long ground wire.

"Then take a 10 Gauge wire also connected to that same point, then run it to the where your amps are grounded, and connect it to there too"

is this necessary?

LOL!

. Maybe english isn't his language!

i bypassed the EQ and i still hear hissing noises. then i grounded both EQ and headunit to the chassis and still their is hissing noises.

but i didnt try bypassing the EQ and grounding the headunit to the chassis. im think its the amp?

Have you tried turning the gains all the way down on the ampifiers?

RCA SHIELD REPAIR

Because pluging and unpluging the rca's while the system is on is NEVER a good idea.

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icearrow6 wrote:

RCA SHIELD REPAIR

Because pluging and unpluging the rca's while the system is on is NEVER a good idea.

i never did that.

He has an Alpine head unit. If the ground path on his RCA cable had opened in his radio, there would have been smoke rolling out of it.

i am an idiot wrote:

Have you tried turning the gains all the way down on the ampifiers?

yes i have.

And the results were?

hissing is still there.

Did the hissing get any quieter when you turned the gains all the way down? If you turn the gains up, does the hissing get louder?

the hissing noise doesnt get louder or quieter regardless of lowering the gain or the headunit/eq volume.

Revisiting...

Did you say that your amp was an older RF amp? There's your issue. RF amps S/N ratios SUCK!

The proof in this pudding is the adjusting of the gains on the amplifiers, and there being no noticeable change in the amount of hiss in any of the speakers. This also tells us that the devices AHEAD of the amp in the signal chain are quieter than the amps, and you have already posted the specified S/N of 100dB. IMO, that's crap, at best... This gives you a bit of an idea as to the quality of RF gear.

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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

haemphyst wrote:

Revisiting...

Did you say that your amp was an older RF amp? There's your issue. RF amps S/N ratios SUCK!

The proof in this pudding is the adjusting of the gains on the amplifiers, and there being no noticeable change in the amount of hiss in any of the speakers. This also tells us that the devices AHEAD of the amp in the signal chain are quieter than the amps, and you have already posted the specified S/N of 100dB. IMO, that's crap, at best... This gives you a bit of an idea as to the quality of RF gear.

yeah im guessing it the amp i have now. with the RF amp i had no problems with it. and the 4 channel i have now, when it turns on theirs a big dim in the middle and the sides light up bright. ill just replace it with a different amp and ill go from there. btw, it was refurbished >.<