Sound balance issue or normal? — AVIC411 Forum Archive

Posted Oct 30, 2006 · 16:28 UTC#1

Hey all, I recently got the AVIC-D2 and used a wiring harness for clean install. I also have a subwoofer hooked up into the SUB pre-outs. My issue is; that my rear speakers (not subs) are very quiet compaired to my fronts. My front speakers seem almost double in sound if I leave the fader at "0". I have to move my fader to +5 on the rear to ballance them out. My stock radio, all speakers were equal. Why is this?

Also, I read the manual about how the rear speakers can be changed to FULL or Subwoofer and I have them set to FULL. If I changed that setting, I loose front and back fader and the subwoofer icon changes to non fader button.

Is it normal for this unit to have so much more power to the front speakers comparied to the rear (not subs)?

Help! and thank you!

PS: 06 STI, using a wiring harness, soldered wires, all colored wires match, sound is clean, fader works correctly, just the rears are muffled compaired to fronts volume wise. Also the rears sound like NO highs are going though them. They sound FLAT.

Posted Oct 30, 2006 · 19:06 UTC#2

With the unit turned off, but the car on, push in the joystick, go to 'Initial', select rear speakers, and make sure they are set to 'full', not 'sub'.

Posted Oct 30, 2006 · 19:07 UTC#3

I did and its set to FULL. Still the same.

Posted Oct 30, 2006 · 19:09 UTC#4

Strange, are you sure the car doesn't have a factory amp?

Posted Oct 30, 2006 · 19:10 UTC#5

Correct. No factory AMP. I guess Im going to recheck the wires, but Im positive there matched up correctly.

Posted Oct 30, 2006 · 19:16 UTC#6

If I remember correctly, the rear speakers have 2 drivers, a woofer and a mid/tweet. The left woofer is white/red+ and red/black-, right is blue/yellow+ and red/white-, the mids on each side are blue/yellow+ and red/white- I believe.(At the speakers.) You may have only tapped the woofer.

Posted Oct 30, 2006 · 19:20 UTC#7

I see. Thanks for for you help. I used a wiring harness and matched each color correctly so Im not sure what you mean about the different drivers.

I also noticed that if I put the rear setting to SW, I loose front and back fader options. Not sure if thats a issue or normal, but I noticed that.

Again, I used a wiring harness and matched all colors. I then plugged my amp and subs into the SUB preouts. Not the REAR preouts, not the front pre-outs, just the SUB preouts.

Doing so allows me to used the SUB ICON to turn them on or off and change the sub output level.

Posted Oct 30, 2006 · 19:30 UTC#8

I'm not sure of the D2 has the sound field settings (stage, living room, etc) like the Z1 or not, but if you have that turned on the rears will sound that way. It has to do with time alignment of the sound, similar to a home surround sound system.

Give that a try.

Posted Oct 30, 2006 · 19:30 UTC#9

You seem to have it correct. Look under the rear deck and see if there are 2 sets of drivers.

Posted Oct 30, 2006 · 19:31 UTC#10

Thank you, but no, mine doesnt offer that.

It does have HPF or high pass filter which I turned off, on, doesnt change much other than let some highs though or not. Volume level stays low and muffled.

Posted Oct 30, 2006 · 19:34 UTC#11

jimmy303 said:
You seem to have it correct. Look under the rear deck and see if there are 2 sets of drivers.

What do you mean by driver Jimmy?

for output sounds, I see REAR output (2 RCA's) a front output (2 RCA's) and a SUB output (also RCA's).

I will recheck, but I dont remember having any extra wirings (the colored thin ones) hanging out. If I remeber correctly, all color wires from the harness matched the colored wires comming out of the head unit. I will recheck though, but Im faily positive there are no extra wires except for VIDEO/sound inputs and outputs for external monitors, camera or DVD player or whatever you want to use it with.

Posted Oct 30, 2006 · 20:17 UTC#12

Speaker. Does the rear speaker location have more than one, ex., woofer and tweeter/midrange?

Posted Oct 30, 2006 · 20:18 UTC#13

Driver means speaker

ramman949 said:

jimmy303 said:
You seem to have it correct. Look under the rear deck and see if there are 2 sets of drivers.

What do you mean by driver Jimmy?

for output sounds, I see REAR output (2 RCA's) a front output (2 RCA's) and a SUB output (also RCA's).

I will recheck, but I dont remember having any extra wirings (the colored thin ones) hanging out. If I remeber correctly, all color wires from the harness matched the colored wires comming out of the head unit. I will recheck though, but Im faily positive there are no extra wires except for VIDEO/sound inputs and outputs for external monitors, camera or DVD player or whatever you want to use it with.

Posted Oct 30, 2006 · 20:51 UTC#14

Ah I see. No. It doesnt.

I have a pair of RCA's for FRONT
I have a pair of RCS's for REAR
I have a pair of RCS's for SUBWOOFER

I have my AMP connected to the SUBWOOFER RCA's.

The rear speaker setting is FULL (for the rear speaker RCA's) which means its all the sound goes though. You can set it to SUB to use the REAR RCA outputs as your SUBWOOFER line too. Changing the REAR RCA outputs to "SUB" WILL CAUSE the rear speakers to act like subs too. I think they do that for people whom have no amp, but want BASS to there rear speakers (like 16x9's).

Posted Oct 31, 2006 · 00:24 UTC#15

Everything checked out fine. My wiring was fine. Buddy of mine said his rear speakers are the same way from factory. I probably never noticed when I was using the stock radio.

Thanks for all your help guys.

Posted Oct 31, 2006 · 00:30 UTC#16

ramman949 said:
Everything checked out fine. My wiring was fine. Buddy of mine said his rear speakers are the same way from factory. I probably never noticed when I was using the stock radio.

Thanks for all your help guys.

Yeah bro, I checked out my STi just a few minutes ago and the fronts are a little bit louder than the rears. I really think it has to do with the front speakers having seperate tweeters.

Posted Oct 31, 2006 · 08:14 UTC#17

SVT Amateur said:

ramman949 said:
Everything checked out fine. My wiring was fine. Buddy of mine said his rear speakers are the same way from factory. I probably never noticed when I was using the stock radio.

Thanks for all your help guys.

Yeah bro, I checked out my STi just a few minutes ago and the fronts are a little bit louder than the rears. I really think it has to do with the front speakers having seperate tweeters.

Right on. Then thats two of you that confirmed this too. And I thought I knew everything there was about my car... :roll:

Posted Nov 30, 2006 · 03:55 UTC#18

Every car will sound louder in the front... you are only 1 foot away from teh front speakers but 3 to 4 feet away from the rears..... Rear is mainly used for the rear passengers... sitting in the front seat you should barely hear the rear when you set it up correctly.

Posted Jun 23, 2007 · 17:07 UTC#19

You guys seem content with the front speakers being louder than the rears. So then what is the fader for? My installer said you can't fade with the on-star adapter installed (2005 GMC Yukon Denali with Bose, XM and rear camera).

Posted Jun 23, 2007 · 18:21 UTC#20

k if u got 4 speakers up front but only 2 in rear then ur gonna get louder up front.

2 speakers at 4 ohms are 2 ohms

so ur deck is runnin the fronts twice as hard as the rears.

i wouldnt worry about it since rear speakers arent that important (as long as u have nice fronts!)

Posted Jun 23, 2007 · 19:14 UTC#21

You guys seem content with the front speakers being louder than the rears. So then what is the fader for? My installer said you can't fade with the on-star adapter installed (2005 GMC Yukon Denali with Bose, XM and rear camera).

Bypass the blose system, and put new speakers in. That's the only way you're going to be able to fade. You can thank gm for that one.

Posted Aug 23, 2007 · 21:29 UTC#22

I WAS HAVING WHAT I THOUGHT WAS A PROBLEM WITH MY BACK SPEAKERS, THE SOUND SEAMED REALLY LOW COMPARED WITH THE FRONT SPEAKERS SO I WENT INTO THE SOUND FIELD OPTIONS AND CHANGED IT FROM SOUND STUDIO TO NORMAL AND NOW MY REAR AND FRONT SPEAKERS ARE THE SAME VOLUME.

Posted Aug 23, 2007 · 21:35 UTC#23

YO RAMMEN GO INTO THE SOUND FIELD OPTIONS AND MAKE SURE ITS SET TO NORMAL , NOT LIVING ROOM, SOUND STAGE , ECT.

THAT SHOULD TAKE CARE OF THE VOLUME PROBLEM BETWEEN UR FRONT AND REAR SPEAKERS.

IT WORKED FOR ME