rear speaker not as loud as front (HELP!!!)
#1
rear speaker not as loud as front (HELP!!!)
Hi,
for some reason, my 2 front speaker 6 1/2 is much louder than my rear speaker 6 1/2. I'm pushing the 2 components with JL 300/4 amp with a pioneer head unit. What is the reason for the front speaker being louder than the rear? The fading is set on dead center.
Here is how i wired up the amp with the head unit and the components.
4 channels RCA plug from from headunit to amp, and from the amp i hook up the speaker wires to the cross over, and the cross over to my tweeter and the 6 1/2 speakers.
Let me know if ya need some other detail.
Thanks!
for some reason, my 2 front speaker 6 1/2 is much louder than my rear speaker 6 1/2. I'm pushing the 2 components with JL 300/4 amp with a pioneer head unit. What is the reason for the front speaker being louder than the rear? The fading is set on dead center.
Here is how i wired up the amp with the head unit and the components.
4 channels RCA plug from from headunit to amp, and from the amp i hook up the speaker wires to the cross over, and the cross over to my tweeter and the 6 1/2 speakers.
Let me know if ya need some other detail.
Thanks!
Last edited by truexh; 10-25-2009 at 11:55 PM.
#2
Hi,
for some reason, my 2 front speaker 6 1/2 is much louder than my rear speaker 6 1/2. I'm pushing the 2 components with JL 300/4 amp with a pioneer head unit. What is the reason for the front speaker being louder than the rear? The fading is set on dead center.
Here is how i wired up the amp with the head unit and the components.
4 channels RCA plug from from headunit to amp, and from the amp i hook up the speaker wires to the cross over, and the cross over to my tweeter and the 6 1/2 speakers.
Let me know if ya need some other detail.
Thanks!
for some reason, my 2 front speaker 6 1/2 is much louder than my rear speaker 6 1/2. I'm pushing the 2 components with JL 300/4 amp with a pioneer head unit. What is the reason for the front speaker being louder than the rear? The fading is set on dead center.
Here is how i wired up the amp with the head unit and the components.
4 channels RCA plug from from headunit to amp, and from the amp i hook up the speaker wires to the cross over, and the cross over to my tweeter and the 6 1/2 speakers.
Let me know if ya need some other detail.
Thanks!
#3
#4
you're getting alternator whine. How did you run your wires?
Is your power wire running on the same side as your RCAs - that will give you alternator whine.
Your front/rear issue is due to the fact that there is front/rear bias in the head unit. If you turn the gains up on your rear channels you should be fine. keep in mind the rear sound waves have to travel further to get to your ear so you will need more power.
Is your power wire running on the same side as your RCAs - that will give you alternator whine.
Your front/rear issue is due to the fact that there is front/rear bias in the head unit. If you turn the gains up on your rear channels you should be fine. keep in mind the rear sound waves have to travel further to get to your ear so you will need more power.
#5
my power wire ran on the passenger side, and my remote wire, speaker wire, and rca wires, ran on the driver side.
I did try to turn the gain up just for the rear but I cannot pass 50% on the gain or else it hiss and whine really loud, and as I turn on the gain, it makes cracking sound within the speakers.
I did try to turn the gain up just for the rear but I cannot pass 50% on the gain or else it hiss and whine really loud, and as I turn on the gain, it makes cracking sound within the speakers.
#6
#7
my power wire ran on the passenger side, and my remote wire, speaker wire, and rca wires, ran on the driver side.
I did try to turn the gain up just for the rear but I cannot pass 50% on the gain or else it hiss and whine really loud, and as I turn on the gain, it makes cracking sound within the speakers.
I did try to turn the gain up just for the rear but I cannot pass 50% on the gain or else it hiss and whine really loud, and as I turn on the gain, it makes cracking sound within the speakers.
One choice is to use a ground isolator. This basically is a device that sits in between the head unit and the amp (the RCAs plug into it, one set from the hu to the device, the other from the device to the amp) and separates the ground between the two. The outside leg of your RCA cables is a ground and a differential between the ends will cause circular current flow between the two ends. Any electrical noise close enough to this will induce current flow in this part of the cable which in turn will induce it in the other. Since the the signal is meant to travel on the inside conductor RCAs are considered unbalanced. This fix is reasonably cheap and will give you a good idea if the problem is the grounding issue.
A better choice is the use of balance transmitters. These will raise the voltage of your RCA outputs (for increased signal to noise ratio) and create a balance signal out them (for noise rejection). Many amps can accept these balance signals directly others will require balance receivers to convert back to RCA.
Another choice which you may want to do anyway is to purchase a sound processor which can not only fix the issue but give you a lot more control over your crossover points (in fact in the long run can eliminate your speaker crossovers). One example is:
http://www.audiocontrol.com/t34/5251...rossovers.html
Equalizers:
http://www.audiocontrol.com/t34/1761...Equalizer.html
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#8
#9
Now lets assume this is not the case. Then you have at least 2 good channels. Remove three of your cables from your rear amp and keep track of what they were. Use your left channel. Not sure if this applies to an auto but some consumer electronics will output both channels out the left if only the left is connected, so we will pretend that is the case. Take this left channel and connect it to each of your 4 inputs on your amp one at a time and see what your results are. If you have all 4 of your channels working on the amp then move on to the next working channel and see if it is the same. If so move to the first non working channel and then the next one. This should tell you if the issue is your HU, your amp, or your connections.
If you are splitting your rca for use of a sub disconnect the y cable part of that from the sub. Not that it can't work, just that depending on the sub amp it may not work correctly.
As far as your whine, one indication of differential grounding is to connect the RCA so it just barely makes contact on one end with just the center post. Do you get the whine?
#10
#11
#12
you're experiencing the rear being louder than the front as well? what amp are you using to power up your components? I wonder what is causing this. but i will pfarmer testing method this weekend and let ya know.
#13
First off make sure you didn't do something simple like configure you Pioneer to two channels. My HU has this as an option, if I remember correctly it was referred to as 2+1 for two channels and a sub woofer. Not sure but if I remember this correctly it just may do what you are describing as far as missing the upper frequencies as the sub woofer then connects to the rear outputs.
Now lets assume this is not the case. Then you have at least 2 good channels. Remove three of your cables from your rear amp and keep track of what they were. Use your left channel. Not sure if this applies to an auto but some consumer electronics will output both channels out the left if only the left is connected, so we will pretend that is the case. Take this left channel and connect it to each of your 4 inputs on your amp one at a time and see what your results are. If you have all 4 of your channels working on the amp then move on to the next working channel and see if it is the same. If so move to the first non working channel and then the next one. This should tell you if the issue is your HU, your amp, or your connections.
If you are splitting your rca for use of a sub disconnect the y cable part of that from the sub. Not that it can't work, just that depending on the sub amp it may not work correctly.
As far as your whine, one indication of differential grounding is to connect the RCA so it just barely makes contact on one end with just the center post. Do you get the whine?
Now lets assume this is not the case. Then you have at least 2 good channels. Remove three of your cables from your rear amp and keep track of what they were. Use your left channel. Not sure if this applies to an auto but some consumer electronics will output both channels out the left if only the left is connected, so we will pretend that is the case. Take this left channel and connect it to each of your 4 inputs on your amp one at a time and see what your results are. If you have all 4 of your channels working on the amp then move on to the next working channel and see if it is the same. If so move to the first non working channel and then the next one. This should tell you if the issue is your HU, your amp, or your connections.
If you are splitting your rca for use of a sub disconnect the y cable part of that from the sub. Not that it can't work, just that depending on the sub amp it may not work correctly.
As far as your whine, one indication of differential grounding is to connect the RCA so it just barely makes contact on one end with just the center post. Do you get the whine?
#14