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Speaker Fading Problem

Mid_Nite_R33

By Mid_Nite_R33,
in Car Audio & Electrical

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Mid_Nite_R33 Mentor

Mid_Nite_R33

Posted
Posted

hey all,

I just amped my rear speakers and they play like shit, when u fade the rear either way both speakers are playing, and when they are centred they just play a little louder, any idea what can be causing this? speakers are fusion coaxials...

thanks

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B0oStEr Mentor

B0oStEr

Posted
Posted
hey all,

I just amped my rear speakers and they play like shit, when u fade the rear either way both speakers are playing, and when they are centred they just play a little louder, any idea what can be causing this? speakers are fusion coaxials...

thanks

A bit more info might help narrow it down.

Are you still using any factory speaker wiring?

Does your amp have an input selector switch?

If so, is it set to stereo?

Other than that, is it possible that you have wired the left pos.and right neg.to one speaker and right pos. and left neg. to the other?

DRD-00F Grand Master

DRD-00F

Posted
Posted

more then likely they are out of phase... take one of them, swap the positive and negative, then pump it...

when one is pushing air out on a beat, the other is pulling it in... creating a sort of harmony... which is not what you want :thumbsup:

Mid_Nite_R33 Mentor

Mid_Nite_R33

Posted
  • Author
Posted
A bit more info might help narrow it down.

Are you still using any factory speaker wiring?

Does your amp have an input selector switch?

If so, is it set to stereo?

Other than that, is it possible that you have wired the left pos.and right neg.to one speaker and right pos. and left neg. to the other?

Sorry, yes im using factory wiring, and the amp has a switch to use it either as 2ch or 4ch, its set to 4ch ofcourse, i have checked wiring and everything seems the right way..

since then i have ditched the factory wiring, rewired one of the speakers and still sounds really crappy, speakers are fusions like i said...hmmm

B0oStEr Mentor

B0oStEr

Posted
Posted
more then likely they are out of phase... take one of them, swap the positive and negative, then pump it...

when one is pushing air out on a beat, the other is pulling it in... creating a sort of harmony... which is not what you want :)

If one speaker was meerly out of phase the result would be very little bass resulting in a tinny sound with the balance on centre but when you fade the balance left or right the bass will come back as the other speaker fades out.

He said they don't fade the balance at all.

Mid_Nite_R33

Regardless of what I think of fusion speakers the problem will be in how they are wired.

If you have ditched the factory wiring then the factory amp, if there was one, is out of the picture.

Are you amping the fronts from the other two channels?

Have you run one pair of rcas for the fronts and one pair for the back or using one pair for both?

Do your fronts balance correctly?

Do your front and rear fade correctly?

Are the two channels you are using both designated as rears?

Eg if you were using one front channel and one rear channel and the rca input mode is set for single rcas then the balance won't fade.

What amp are you using?

Mid_Nite_R33 Mentor

Mid_Nite_R33

Posted
  • Author
Posted
If one speaker was meerly out of phase the result would be very little bass resulting in a tinny sound with the balance on centre but when you fade the balance left or right the bass will come back as the other speaker fades out.

He said they don't fade the balance at all.

Mid_Nite_R33

Regardless of what I think of fusion speakers the problem will be in how they are wired.

If you have ditched the factory wiring then the factory amp, if there was one, is out of the picture.

Are you amping the fronts from the other two channels?

Have you run one pair of rcas for the fronts and one pair for the back or using one pair for both?

Do your fronts balance correctly?

Do your front and rear fade correctly?

Are the two channels you are using both designated as rears?

Eg if you were using one front channel and one rear channel and the rca input mode is set for single rcas then the balance won't fade.

What amp are you using?

OK, amp is a 4 channel coustic 4x50rms, used to run fronts off its 2 channels, no problems, rear was off the deck through factory wiring,

Now i got off my ass and ran another set of RCAs through the car to amp the rear as well, when i amped the rears they sounded really bassy and crappy, when centred they were louder compared to when faded.

Yes the fronts fade left and right correctly and so does the rear but it sound crappy. Yes the amp has 2 channels for front and 2 for rear, set of RCAs for front and rear.

When i rewired one of the speakers and tryed connected directly to the amp, avoiding factory wiring it was still just as bad, the speaker must be the stuffed right?

B0oStEr Mentor

B0oStEr

Posted
Posted

I'm a bit confused

....when u fade the rear either way both speakers are playing, and when they are centred they just play a little louder....
Yes the fronts fade left and right correctly and so does the rear but it sound crappy.

Do the rears fade out left to right or not?

If they are too bassy how have you set the crossover/HP filter?

Can you hear the midrange and treble or do they seem to be missing.

Is it set to hp?

Is the c/o point adjustable? Set hp at 80-100Hz?

Mid_Nite_R33 Mentor

Mid_Nite_R33

Posted
  • Author
Posted
I'm a bit confused

Do the rears fade out left to right or not?

If they are too bassy how have you set the crossover/HP filter?

Can you hear the midrange and treble or do they seem to be missing.

Is it set to hp?

Is the c/o point adjustable? Set hp at 80-100Hz?

When i fade the rears to either side both speakers are still playing crap, when centered they are playing crap but a little louder.

on the amp there is a freguency adjustment but it does help much at all

You can hardly hear any midrange and treble

ceedub Community Regular

ceedub

Posted
Posted

Let me get this right: :bunny:

When you fade left ro right both rears never die down completely?

When you fade the fronts do the speakers alternate from left to right?

If so then swap the wiring on the amp from front to rear. and check fade again. If the rears now fade correctly (and the fronts don't) then its your amp.

Otherwise its your wiring. I don't understand how it could be the speaker?

Mid_Nite_R33 Mentor

Mid_Nite_R33

Posted
  • Author
Posted
Let me get this right: :bunny:

When you fade left ro right both rears never die down completely?

When you fade the fronts do the speakers alternate from left to right?

If so then swap the wiring on the amp from front to rear. and check fade again. If the rears now fade correctly (and the fronts don't) then its your amp.

Otherwise its your wiring. I don't understand how it could be the speaker?

thats right, i will do that now and get back to you.

cheers

MOBASS Collaborator

MOBASS

Posted
Posted

It is hard to work out what your issue is..

here is one option

If fading left / right does front / rear

and fading front / back does left / right

You have the pairs of RCA's the wrong way.

For instance you have the front set of RCA's to both Right's and the rear set of RCA's to both left's.

DRD-00F Grand Master

DRD-00F

Posted
Posted
hey,

Do you mean a low pass filter on the amp? is it a switch a knob type of thing? I have a frequency adjustment for the rear..

yeah normally there is a switch as well that chooses it on or off... look for that... if its cutting out mid and high end stuff, you will only get up to about 200Hz max... which will be bass and a little bit of midrange, but not much...

gathering up what you are saying, this sounds like it may be your problem, cause bass is not directional... so fading you wont hear that much difference... sort of...

either way, can you explain what your problem is again? are you missing high end, or do you care about it not fading left and right?

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