Infinity Premium Sound System

[Jexee]

I have a '94 Grand Cherokee and am getting hardly any sound from the left channel of the sound system, front and rear. The only way I can hear anything on the left channel is if I turn the volume up all the way and then I can barely hear some sound. I brought it to a shop today and they put two radios in and it did the same thing. I was told it was the amplifier.
Well, I went to a junk yard and plugged another amp into it and it did the same thing. No sound from the left channel, front or rear.
There has to be a common wire that supplies the left channel that is bad. Would anyone know what wire it would be? What color?
Any ideas will be appreciated. Thanks everyone

[ponchonutty]

Doesn't your car have separate amps on each speaker or is that only the minivans? I'd pull a speaker and put a meter on the wires. If I'm not mistaken, I think the "tweeters" run straight off the stereo while the "woofer" is the one that's amplified.

[SteveB05]

I had a similar issue. Checking prices on everything, I decided to replace it all. I really like my Kenwoods and they were 140.00 for 4. There are diagrams on the internet for replacing the factory 2 ohm amp with something a little more compatable and a standard chrysler pigtail will wire up any head unit.

BTW, all six run off of the amp (tweeters, front doors and rear doors).

[Audiobahn77]

Its funny time and time again. Those infinity systems must really SUCK! I'm always reading about problems with them. If you are truly into listening to decent sounding music (even without the BOOM). Just swap out the factory system with an aftermarket system. You don't have to spend alot to get alot. Keep your eyes open while online or in a store and even check it out on ebay.

[mx52nv]

sounds like either a bad sending wire or bad speaker(s)

[porscheguy9999]

Originally Posted by Audiobahn77

Its funny time and time again. Those infinity systems must really SUCK! I'm always reading about problems with them. If you are truly into listening to decent sounding music (even without the BOOM). Just swap out the factory system with an aftermarket system. You don't have to spend alot to get alot. Keep your eyes open while online or in a store and even check it out on ebay.

What do you mean "they suck"? They dont suck at ALL. I have a 95 GC Laredo with the Infinity Sound System and it is great. I was listining to it just this night with the mid and trebel all the way down, with the bass all the way up and with the volume up and it sounds SWEET (oh yeah, theres PLENTY of BOOM)! I have never, ever had any problems with it. Right now, some lights in the face are fading, but those can be replaced easy.

Infinity is right up there with Bose, Harmon Kardon, Alpine, and Audiobahn in sound quality. So check your facts before saying these things. Or get an Infinity system and hear what you've been missing.

[Audiobahn77]

Originally Posted by porscheguy9999

What do you mean "they suck"? They dont suck at ALL. I have a 95 GC Laredo with the Infinity Sound System and it is great. I was listining to it just this night with the mid and trebel all the way down, with the bass all the way up and with the volume up and it sounds SWEET (oh yeah, theres PLENTY of BOOM)! I have never, ever had any problems with it. Right now, some lights in the face are fading, but those can be replaced easy.

Infinity is right up there with Bose, Harmon Kardon, Alpine, and Audiobahn in sound quality. So check your facts before saying these things. Or get an Infinity system and hear what you've been missing.

Oh, I'm not saying they suck. I'm just saying that they seem unreliable because I'm always seeing people on here with problems with their "Infinity" systems. Personally, I prefer the high quality Infinity small speakers over the ones I have installed in mine, but I'm running my all Audiobahn system. I prefer MB Quart over Infinity, so I'm definitely not saying my stuff is better than yours or anyones for that fact. I've been in car audio entertainment for years.....SO I've checked my facts Mr. Porscheguy that's on a Jeep Forum.

[smokeandlights]

My dad's zj had the "infinity system". it was good for a while but fell hard. He said: "I can't belive Infinity put their name on this CR@P!" I didn't see them, but he said it had paper cones with foam surrounds. I would go aftermarket before dropping factory prices on this system. spend the money on a real infinity system that isn't hiding behind a little gold paint.

[Corcoran]

Originally Posted by Audiobahn77

Oh, I'm not saying they suck. I'm just saying that they seem unreliable because I'm always seeing people on here with problems with their "Infinity" systems. Personally, I prefer the high quality Infinity small speakers over the ones I have installed in mine, but I'm running my all Audiobahn system. I prefer MB Quart over Infinity, so I'm definitely not saying my stuff is better than yours or anyones for that fact. I've been in car audio entertainment for years.....SO I've checked my facts Mr. Porscheguy that's on a Jeep Forum.

Actually You are wrong even if you wont admit it. SHEER NUMBERS prove it, Since the INFINTY sound system has been used from the early 90's right on to current, in almost EVERY chrysler product, the numbers you are seeing are not all that high in comparison. It's called a statistical analysis, and without considering it it's just rumor mongoring. Now if it were something that was excusive to one vehicle for a limited time frame with the same number of failures it would be a different story.
Many people have complained about the paper cones and foam surrounds on the speakers but this is done for a reason and it isnt cost. Poly cones have been proven to fail at a greater rate in automotive applications than the carbon fiber paper cones as a result of warpage due to the extreme temperature ranges the interior of a closed vehicle goes through. If a auto mfg were to use poly cones they would have an expected life span of less than half that of the vehicle and just think about the complaints THAT would generate on virtually every vehicle that made it to say 75K. Yes more expensive luxury and high end sports cars do use poly conw based speakers but two things are different. First as they are high end vehicles they generally do not sit out in the ice and snow or the scortching summer heat with all the windows closed and secondly, as they are marketed to the more affluent buyers, the cost of replacing them isnt an issue asthe autos generally arent kept for more than a handful of years on the luxury cars and the stereos are secondary to the performance and handling of the sports car, In either case the vehicle owners have the money to easily replace the warped speakers.
Oh yes, How do I know this? I'm a retiered electronics engineer with a background in mechanical engineering and I worked my way through college installing high end stereos in exotic cars such as Rolls, Jags, ferarris and so on.

Scott

[jeeperphil]

Thats tellling them. Now mine has the button doing the job of the button next to it problem. I understand that this is a simple cleaning issue. Can you tell me why my Infinity won't play any new discs but old ones play fine.

[Corcoran]

Originally Posted by jeeperphil

Thats tellling them. Now mine has the button doing the job of the button next to it problem. I understand that this is a simple cleaning issue. Can you tell me why my Infinity won't play any new discs but old ones play fine.

Open the face of the radio and take a cotton swab and some 70% or so isopropyl Alcohol and clean the contact points (if they are copper clad or silver and bot black carbon, a quick rub with an ink eraser will do aslong as you are careful) and between them on the circuit board and coresponding contact point (swab and alcohol or an alcohol prep pad ONLY) on the conductive rubber for the button issue. As far as the requirement of the cd media, Normally, it is the result of the color output of the laser module. Usually gold colored CD-r disks work fine in automotive cd players, though to be honest I never checked the compatability in mine. It could be possible that Infinity chose to design theirs to work only with factory disks or it was just the laser modules that were available at the time.

If you ever want to show someone just how good the infinity is get a hold a cd by the Doors that has "Riders on the Storm" and play that cut for them.

[Bob D.]

Originally Posted by Corcoran

If you ever want to show someone just how good the infinity is get a hold a cd by the Doors that has "Riders on the Storm" and play that cut for them.

It's nice to see something positive about the Infinity System for a change.
I've never understood why it's so maligned, it is one of the best sounding factory sound systems available. It isn't an expensive after market system, but that is not a fair comparison.

[Corcoran]

Originally Posted by Bob D.

It's nice to see something positive about the Infinity System for a change.
I've never understood why it's so maligned, it is one of the best sounding factory sound systems available. It isn't an expensive after market system, but that is not a fair comparison.

Actually if you were to throw the infinity on an audio analyzer right next to the typical high end after market system you will find that watt for watt the Infinity reproduces sounds with truer fidelity than the after market units. "Kids" these days seem to think that thump means good sound when all it does is hide midrange and treble area distortion. Since bass sounds are low frequency it doesnt take much of an amp or head to reproduce them, just a properly built speaker to handle the movement necessary so the speaker doesnt buzz. Of course if you look at a truely exclusive sound system such as a true audiophile would install, there are no kickers or thumpboxes, Just crisp clear sound. These "kids" systems sound like garbage when playing music such as classical, new age and acoustical simply because they cant reproduce the subtle neuances of delicate sounds. Systems that can are capable ofsounding good playing anything. Sadly the same cant be said of these "thrasher" systems, not to mention they dont induce premature hearing loss.

[Audiobahn77]

I agree most systems sound like junk now days, but not everyone is going for sound quality. Have you heard of db Drags? Most of the categories there are going for SPL as well as sound quality. Alot of people don't know enough about stereo systems and speaker placement/angles. I'm not one to crank up my amps all the way just to get it louder...I do care about quality of sound but I do want great SPL at the same time.

[Corcoran]

Originally Posted by Audiobahn77

I agree most systems sound like junk now days, but not everyone is going for sound quality. Have you heard of db Drags? Most of the categories there are going for SPL as well as sound quality. Alot of people don't know enough about stereo systems and speaker placement/angles. I'm not one to crank up my amps all the way just to get it louder...I do care about quality of sound but I do want great SPL at the same time.

I used to be involved in the tech side of Auto Sound Competitions Before they got carried away and started changing the rules to allow equipment other than automotive (12 volt powered) amps and equipment into the competitions. Sadly this has led into the de-evolution of superior sound and power to the junk being foisted off at ripoff prices. Ironically there are more efficent ways to feel the sound without destroying the fidelity or ones own hearing, and they are uniquely fitting to automotive applications.