Bose Gold "off balence" Why????
#1
Zen Vet Master Level VII
Thread Starter
Bose Gold "off balence" Why????
I've replaced what feels like the entire stereo system in my 91. It is a Bose Gold with the CD and cassette. I've replaced the ECM with a rebuilt version and all 4 of the amps along with rear speakers. The front speakers are the originals.
The system works fine however, my front driver side is "softer" than the other 3 speakers. There are no crackles or hissing, it sounds perfect but just not as loud. It is as if the LR balance **** was twisted?
Now, my "DUH" moment.... if there IS a balance ****, I can't seem to find it. I have the fade working as expected.
So, if there is a balance ****, please let me know and I'll plead idiocy. But, if there is not, why and (more importantly) how to I fix it so the fronts are equalized.
BTW... I have one of those "cassette converters" that plug into my Iphone. Sounds great!
Thanks!
The system works fine however, my front driver side is "softer" than the other 3 speakers. There are no crackles or hissing, it sounds perfect but just not as loud. It is as if the LR balance **** was twisted?
Now, my "DUH" moment.... if there IS a balance ****, I can't seem to find it. I have the fade working as expected.
So, if there is a balance ****, please let me know and I'll plead idiocy. But, if there is not, why and (more importantly) how to I fix it so the fronts are equalized.
BTW... I have one of those "cassette converters" that plug into my Iphone. Sounds great!
Thanks!
#2
There is no balence ****. The speakers are "balanced from the factory" as the manual says. Your problem is most likely one of the speaker amps are incorrectly placed. The front and rear speakers are 100% physically interchangeable, but the rear amps are designed to output a soft(and quieter) sound. You may have switched one of the front amps with the rear and vice versa.
I too had this issue when I bought a rear amp and installed it on the front. The speaker works, but it was much quieter. The issue was fixed when I bought the appropriate amp. Good luck!
I too had this issue when I bought a rear amp and installed it on the front. The speaker works, but it was much quieter. The issue was fixed when I bought the appropriate amp. Good luck!
#3
Melting Slicks
There is no balence ****. The speakers are "balanced from the factory" as the manual says. Your problem is most likely one of the speaker amps are incorrectly placed. The front and rear speakers are 100% physically interchangeable, but the rear amps are designed to output a soft(and quieter) sound. You may have switched one of the front amps with the rear and vice versa.
I too had this issue when I bought a rear amp and installed it on the front. The speaker works, but it was much quieter. The issue was fixed when I bought the appropriate amp. Good luck!
I too had this issue when I bought a rear amp and installed it on the front. The speaker works, but it was much quieter. The issue was fixed when I bought the appropriate amp. Good luck!
Amps are only same side to side, not front to rear. Check there first.
#4
Zen Vet Master Level VII
Thread Starter
I bought the rear system as a "set" that included mounting grill, amp and speakers. 100% new and specifically mounted to the LR side.
The front amps are "Front only" and I bought them as a pair- new- and they share the same Part number.
Anything else to try?
#6
Zen Vet Master Level VII
Thread Starter
Is this the amplifier you have in front? Have you tried switching amps from right to left?
I don't think it is an amp issue. Before I replaced all four amps, the front passenger was the only one left working. When I installed the two new ones the drivers was quieter from the git-go and the passenger was the same loudness with both the old and new amp.
Could this be a off grounding issue, a ECM issue or speaker problem?
#7
Melting Slicks
Member Since: Jan 2014
Location: Downers Grove Illinois
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Yes, I believe that is the one. I bought the whole kit from CC.
I don't think it is an amp issue. Before I replaced all four amps, the front passenger was the only one left working. When I installed the two new ones the drivers was quieter from the git-go and the passenger was the same loudness with both the old and new amp.
Could this be a off grounding issue, a ECM issue or speaker problem?
I don't think it is an amp issue. Before I replaced all four amps, the front passenger was the only one left working. When I installed the two new ones the drivers was quieter from the git-go and the passenger was the same loudness with both the old and new amp.
Could this be a off grounding issue, a ECM issue or speaker problem?
#8
Le Mans Master
Yes, I believe that is the one. I bought the whole kit from CC.
I don't think it is an amp issue. Before I replaced all four amps, the front passenger was the only one left working. When I installed the two new ones the drivers was quieter from the git-go and the passenger was the same loudness with both the old and new amp.
Could this be a off grounding issue, a ECM issue or speaker problem?
I don't think it is an amp issue. Before I replaced all four amps, the front passenger was the only one left working. When I installed the two new ones the drivers was quieter from the git-go and the passenger was the same loudness with both the old and new amp.
Could this be a off grounding issue, a ECM issue or speaker problem?
There is a major difference between the rear speaker amps and the front with equalization.
Each amp board has a number. You need to remove both front speaker boxes and remove the boards and compare the numbers to see if they are the same. If they are, then temporary swap the speaker boxes left to right and see if the problem moves. If it does then the amp has a problem.
If it does not move, the CDM might be the problem.
If they are not the same numbers then that is your problem.
#9
Drifting
#10
Zen Vet Master Level VII
Thread Starter
Thanks all! I took the speaker apart and swapped amps with the "old" amp that worked. I plugged it in and bingo- all balanced and much happier!
I'll see if I can return the new amp that does not work. Funny how many times a new part fails.
I'll see if I can return the new amp that does not work. Funny how many times a new part fails.
#11
Safety Car
That's why I stocked up on $5 Nissan Bose amps from the wrecking yard. None of them have failed to function so far. Been there done that with the proper C4 amps... more trouble than it is worth time-wise and for money spent considering the quality of the sound. I do prefer stock interiors so the radio had to stay on my car as well.
but to answer the original question:
For diagnostic purposes, I discovered that the sound system does indeed have balance, just there is no **** for it. If you have a Tech1 scanner with the body module cartridge, you can go into the radio diagnostics and fiddle with balance.
but to answer the original question:
For diagnostic purposes, I discovered that the sound system does indeed have balance, just there is no **** for it. If you have a Tech1 scanner with the body module cartridge, you can go into the radio diagnostics and fiddle with balance.
#12
Drifting
That's why I stocked up on $5 Nissan Bose amps from the wrecking yard. None of them have failed to function so far. Been there done that with the proper C4 amps... more trouble than it is worth time-wise and for money spent considering the quality of the sound. I do prefer stock interiors so the radio had to stay on my car as well.
but to answer the original question:
For diagnostic purposes, I discovered that the sound system does indeed have balance, just there is no **** for it. If you have a Tech1 scanner with the body module cartridge, you can go into the radio diagnostics and fiddle with balance.
but to answer the original question:
For diagnostic purposes, I discovered that the sound system does indeed have balance, just there is no **** for it. If you have a Tech1 scanner with the body module cartridge, you can go into the radio diagnostics and fiddle with balance.
#13
Safety Car
There are actually more cars that may have compatible amps, but for sure 96-99 Nissan Maxima's and Infinity clones have a drop-in replacement for C4's 91-up. I think you can make them work in 90's if you resolder the wiring harness from your old amplifier. Just be sure to keep the front/rear straight...which is easy because they say front/rear on the part.
#14
Drifting
In your defense, this post is only about an hour old... but yeah, there's a few BOSE amp threads out there and I don't claim to be the first, I just helped compile information from bits and pieces of advice I found from other people over the years.
There are actually more cars that may have compatible amps, but for sure 96-99 Nissan Maxima's and Infinity clones have a drop-in replacement for C4's 91-up. I think you can make them work in 90's if you resolder the wiring harness from your old amplifier. Just be sure to keep the front/rear straight...which is easy because they say front/rear on the part.
There are actually more cars that may have compatible amps, but for sure 96-99 Nissan Maxima's and Infinity clones have a drop-in replacement for C4's 91-up. I think you can make them work in 90's if you resolder the wiring harness from your old amplifier. Just be sure to keep the front/rear straight...which is easy because they say front/rear on the part.
#15
Zen Vet Master Level VII
Thread Starter
#16
Safety Car
The price of a stereo component varies quite a bit at a wrecking yard, but since it isn't really a stereo amplifier in the sense that it is for the entire car, you will be over charged for it most likely. since they aren't very large, they will charge you a cheaper price if you call it a speaker switch. Switches are cheap in the junkyard pricing list. $5-$10 from the kind of places were you pull the parts yourself. Negotiate this as much as your conscience will allow . The first time i bought these I was paying something like $18-$20, but still, a lot cheaper than the C4 parts with the older generation of defective capacitors.
https://www.corvetteforum.com/forums...uidance-4.html
Cliff's "Solutions"-
https://www.corvetteforum.com/forums...post1585219757
https://www.corvetteforum.com/forums...post1581564115
https://www.corvetteforum.com/forums...uidance-4.html
Cliff's "Solutions"-
https://www.corvetteforum.com/forums...post1585219757
https://www.corvetteforum.com/forums...post1581564115
#18
Drifting
Maybe a stupid question, but if I was to bypass the amp and go straight to the speaker would it work? Or how bout if I pulled the bose speaker all together and installed a regular car speaker what would happen, would it work?
#19
Zen Vet Master Level VII
Thread Starter
Sorry, I'm not aware of a work around on this one. You either run the Bose system as intended or you scrap it and get an entirely new one.
BTW... I put my Bose back to specs and it is really very good.
#20
Safety Car
the bose speakers are only 1 ohm of impedance and standard car radios want to see a speaker with 4 ohms, so no, you can't just cut out the amps and resuse the speakers.
One of the larger corvette vendors used to sell a replacement kit that included a new head unit and speakers that fit into the oem enclosures which allowed for a proper bosectomy.
One of the larger corvette vendors used to sell a replacement kit that included a new head unit and speakers that fit into the oem enclosures which allowed for a proper bosectomy.