Chevrolet Impala Audio

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Comments

  • Front - JBL P632
    Specifications
    Suggested Retail Price: $169.95 (paid $99)
    Power Handling, RMS: 70 Watts
    Power Handling, Peak: 210 Watts
    Frequency Response (±3dB): 45Hz - 22kHz
    Sensitivity: 91dB
    Impedance: 4 Ohms
    Mounting Depth: 2-1/2"


    Rear - JBL P9633
    Specifications
    Suggested Retail Price: $229.95 (Paid $109)
    Power Handling, RMS: 100 watts
    Power Handling, Peak: 300 watts
    Frequency Response (±3dB): 25Hz - 22kHz
    Sensitivity: 92dB
    Impedance: 4 Ohms
    Mounting Depth: 3 -1/16


    Tweeters - JBL P23T (Mounted in upper door panel)
    Specifications
    Suggested Retail Price: $99.95 (Paid $44)
    Power Handling, RMS: 45 Watts
    Power Handling, Peak: 135 Watts
    Frequency Response (±3dB): 5kHz - 22kHz
    Sensitivity: 91dB
    Impedance: 4 Ohms
    Mounting Depth: 1"


    I also purchased a P80.4 Power Amp, but returned it. The "103" amp turned out to be fine with the new speakers.


    You can check out the entire JBL Power line at:

    http://www.jbl.com/car/series.asp?ser=pos

  • night_owl1night_owl1 Member Posts: 760
    In the Impala, the radio is an integral part of the OnStar system. The audio output is fed into the radio so you can hear it from the speakers. You could look into a relocation kit, but I don't know how the system works with two audio outputs (stock and new radios)
  • I believe that the people who have relocated the head unit added small dedicated speakers in the center console or dash area for OnStar and the warning chimes. The stock and new head units did not share speakers or amplifiers, if I remember correctly.
    Personally, I think it's a waste of time and money. All modifications can be done utilizing the existing head unit. Plus, aftermarket units don't look very good in GM cars, for the most part. Maybe someday GM will join the rest of the automotive world,and begin using DIN.
  • wilhanneswilhannes Member Posts: 1
    Today my dealer replaced my 104 amp with the new and improved "103" model. The sound quality is definitly great but the reception is much worse. Stations I listened to before are now coming in weak and drifting. Strong local stations are ok. Has anyone had this problem and what is the fix for it? I don't want to complain to the dealer because I had to plead with him to replace the amp. Thanks for any help
  • wipsonwipson Member Posts: 16
    wilhannes, I did not notice any difference in radio reception after having my amp replaced. As a matter of fact, on my daily commute I notice poor reception for a few seconds driving up a certain hill, and the 104 & 103 amps acted the exact same way as far as reception goes.

    I did notice, however, that this morning on my way to work, all stations had poor reception. I see that you are in NY and I am in northern NJ, so it may be due to weather conditions or something. I would give it another day to see if conditions change. Good luck, and let me know what happens.
  • roderacerroderacer Member Posts: 311
    I went fishing a couple of weekends ago, The state park is about a 40 minute drive so I'd say it is 60 miles away give or take. I can't receive the stations I do while in the urban areas out there.

    The radio reception was fine until I got back into range from the trip. Ever since then, the reception has been mediocre. I haven't had any work done on the AMP as I already had the 103 installed upon delivery. (build date 4/01).

    Not sure what or how that would affect the reception. I went to WI 2 months ago and had no issues with reception. If it continues, I'll bring it up to Service.

    RR
  • After replacing the rear speakers, I noticed a distinct loss of reception, worse than usual.

    It turns out that I had inadvertently disconnected the wire from the rear window antenna terminal, located on the window itself.

    I don't see why your dealer tech would have been in that area, but it might be the cause. Maybe there is another connector located closer to the amp that became loose or disconnected.

    Nightowl - Does the Helms manual show any likely locations?
  • roderacerroderacer Member Posts: 311
    Interesting point about the antenna connector being disconnected. I didn't notice any loss of reception after I had my speakers replaced, but that may be because I wasn't listening to the radio much.

    I'll look at the connectors tonight to see what the deal is... geez, check tire pressures, antenna connectors, etc! Who says a brand new car is maintenance free?!

    Everyone that sees my new car comments on how EASY it is to upkeep it. Most common phrase is "oil change every 3000 and you are set"... if they only knew.

    RR
  • Don't forget to check the oil level weekly,
    wash and vacuum weekly,
    wax every three months,
    rotate the tires every 3000 miles,
    get your teeth cleaned twice a year,
    and buy a birthday present for your girlfriend/wife annually.
  • night_owl1night_owl1 Member Posts: 760
    There is a connector on the back of the radio, but I gotta check the book when I get home.
  • That much I knew. ;-)
    I was wondering if there was one in the back of the car that could have been loosened or disconnected in Wilhannes' Impala.
  • night_owl1night_owl1 Member Posts: 760
    After your reminder about wife/gf birthday presents, I was beginning to wonder... ;)

    Anyway, the Impala has a strange set up. The antenna is not directly connected to the radio. For those of you who don't know (and I didn't until I looked into this) the radio antenna is on the rear windshield of the car. On the left side, there are two connectors (not counting the OnStar antenna). The bottom spade connector is for the defogger grid. The top connector is the antenna. Both the radio antenna and the defogger are connected to a Radio Antenna Module. This item is also referred to the "antenna amplifier" in the body of the text. This module is behind the left hand rear quarter upper trim panel. Which means you can't see/test it unless you remove the panel. =P

    The radio sends a Antenna Enable Signal to both the module and the audio amp (if equipped). This signal is connected to the antenna grid. I would have expected this to be connected to the module, not the directly to the antenna. The antenna is inductively coupled to the coax cable leading to the radio's antenna in. For some reason, the defogger circuit is sent through a coil in the module and is connected to the defogger grid. As far as I can tell, it is not electrically connected to the antenna circuit.

    From the troubleshooting guide, a majority of the fixes are centered on this module. Bad connections, positive voltage, or a bad module.
  • night_owl1night_owl1 Member Posts: 760
    Interestingly enough, it appears the Antenna Enable Signal is what turns the amplifier on. Also, when the amp is turned on, it sends a signal back to the radio so it recognizes that an amplifier is present. At that point, the radio will output low level audio signals. If the radio does not receive the amplifier present signal, the outputs to the rear will be high level.

    So for those of you who are replacing the amp, if you can send an amplifier present signal to the radio, you can eliminate the need for line level converters.
  • From your description, it sounds like the antenna signal passes through the amplifier or amplifier connector. Maybe that guy's amp is bad. As you pointed out while sticking your tongue out at me (which hurt my feelings, BTW) his service tech couldn't have disconnected the module behind the trim panel.

    I did inadvertently pull the connector from the antenna terminal on the window while installing my new speakers, so that might have happened to him, although doubtful. It could even happen at a car wash while cleaning the inside of the rear window.
  • spider717spider717 Member Posts: 106
    Is that your car? Just curious, is you speedometer off by much with the 20's on?
  • night_owl1night_owl1 Member Posts: 760
    I was looking at all the work she had done on her car and I realized she kept the factory amp.
  • night_owl1night_owl1 Member Posts: 760
    You want to install this Rio radio in your car without relocating/modifying the factory head unit? Where did you intend on installing the Rio?
  • Isn't the Rio a small device that plugs into an aux input? If so, a simple solution would be a an Aux Input Cassette. It pops into the cassette player of the factory head unit. The Rio, or other device then plugs into this cassette unit.
  • hooeypooeyhooeypooey Member Posts: 3
    Hi, if you would like to look at the headunit I would like to install you can read about it at: http://www.riohome.com/products/riocar.htm

    Yes, it is now owned by the same company that makes the portable MP3 players, but with this unit, you can store and have access to your whole music collection at anytime. Quoting the site: "The Rio Car is designed to fit into your car dash. It's a single DIN sized unit, like most other car audio heads; and is pull-out removable, which is handy both for security and for connecting up to your PC to get music onto the player."

      It is, in my opinion, absolutely the best music product available at this time. I have had mine since last Thanksgiving and love it. When I had it set up in my previous car, I could listen to whatever I wanted on my way to work, take it in with me to work and hook it up to my PC, listen on the way home, and hook it up to my home stereo if I wanted to when I got home, without missing a beat. Besides being able to dock it in the car, it has two RCA line outs to you can pretty much play it anywhere you have access to speakers.

      Anyway, my dilemma is how to get this integrated cleanly into the factory setup without losing any of the functionality of the factory head unit and OnStar and not having to relocate anything. Where I install I have not decided, which is why I am seeking advice, but I would like it to be visible and accessable to me. Installing is pretty much just like any other single DIN sized head units, but I haven't really seen anyone do anything yet which I have been wowed by. I'm open to suggestions. Thanks. :)
  • Measure the glove box,storage bin, and center console box. A DIN radio may fit in one of those with modifications. You should be able to run your audio and power signals to the connector under the right kick panel.


    One of those connectors runs to the CD Changer connector in the trunk. The other runs directly to the aux input on the back of the factory head unit.


    Check Nathan's web page for the wiring diagrams of those connectors.

    http://home.hawaii.rr.com/impala/CDchanger.html

  • night_owl1night_owl1 Member Posts: 760
    One person placed the aftermarket head unit in the storage area under the vent controls (I use it for CDs). It didn't look too professional, though. Wouldn't it be better to relocate the factory unit to the trunk? How do you control the Rio unit? Does it have a remote on it?
  • hooeypooeyhooeypooey Member Posts: 3
    I could relocate the factory unit, but I am exploring other alternatives. I may mount it under the glovebox somewhere. Yes, it can be operated with the remote. Thanks for the input.

    Duane
  • night_owl1night_owl1 Member Posts: 760
    How about mounting the Rio in the trunk?
  • impalaondubsimpalaondubs Member Posts: 3
    I took those pics when I first installed the system. I had problems with the installers because I needed my H.U. relocated to my trunk. It took 3 days to finish the work on my car, since I was tired of being at the shop all day I told them to leave the amp and finish up and I would do the rest on my own. The factory amp has been removed now.
  • blckthreeblckthree Member Posts: 153
    Talked with my service manager last night, she has my amp on order and it should be here next week. They were very helpful with it, and she mentioned that her district rep had just gotten some info on the amp issue. Maybe it is finally going to be easier to get replaced.

    Also looked at a 2002 LS and the amp number on that car is different yet. I read it off for the service manager and she wrote it down, but i didnt get a copy of the number for myself. i will try and get that number when i take mine in to get replaced.
  • roderacerroderacer Member Posts: 311
    Hey everybody.

    Comment re: the 103 (new) AMP... I already had it installed on the 04/01 build date '01 LS. I also had the interior speakers replaced with Alpines. Sounds GREAT!

    Anyone notice that the low volume bass is extremely heavier than at higher volumes. Does the AMP contribute to this or is it a "feature" of the RDS radio? I'd love an equalizer but if the AMP/Radio takes over the sound controls, it may be futile.

    Thanks!
    RR
  • bh0001bh0001 Member Posts: 340
    I've noticed this too. I think the RDS radio is at work here. A few months before I got my Impala I spoke to a guy that does all the Delco radio service in my area. He said that the radios are designed to limit bass at higher levels in order to "prevent damage to the system".

    An EQ might be futile, but I'm anything but an expert! Talk to the place where you got your speakers. If they don't seem knowledgeable, find the Delco repair facility in your area and talk to them.
    Brad
  • The stereo might have an always-on "loudness" contour. "Loudness" compensates for the fact that humans do not percieve bass and some high frequencies as well at low volumes as they do at higher volumes.

    In most car stereos that have this feature, it is manually switchable on and off.

    I'm only guessing here, but it is an educated guess. :-)
  • roderacerroderacer Member Posts: 311
    Thanks bh0001 and garypen.

    So if the RDS radio is affecting the preamp signal, then an equalizer isn't going to do a thing... at least at low volumes and even at higher volumes - it won't help much sonce the signal leaving the radio is adjusted so the frequencies reaching that amp are VERY low. I wish there was an override to the 'loudness' on the radio. When driving with the windows lowered, I need more bass, windows up (volume lower), the sound is amazing.

    The fact that the bass is so heavy at the lower volumes makes me think that Delco did a good job "governing" the radio. I'd be sure to damage a speaker or two if they hadn't implemented that. I don't think the factory amp is the cleanest one around in terms of power.

    Thanks!
    RR
  • I often find myself adjusting the bass level when switching between FM and CD, or even between songs. I've gotten pretty good at "speed eq'ing". If it were an olympic sport, I'd get the silver, at least.
  • humahumahumahuma Member Posts: 17
    Hi gang. This is HumaHuama. The guy who started the idea of the amp by pass many moons ago. And thanks to caloboration of others on the Imapla radio forum we had a good work around by by passing the amp. But thanks once again to you all on the forum we've finally have a real solution as GM is replacing the amps.

    I had mine replced today and the bass is outstanding.

    Here is what I did. I went to my dealer and explained the situation and asked them to order the 103 amp (part # 10309548) which they did. I also called the GM customer Assitance Center at 800-222-1020 and explained the situation. They said they were not aware of any such problems. I did receive a file number of 05424125.

    The new amp came in. I made an appointment to get it installed. Arriving at the dealership, I told the manager that he could test the old 104 amp and that it would test ok. I told him he would have to make a judgemet call saying the amp was bad.

    I had the amp bypass in place and played a CD with lots of bass for the service manager. The rear view mirror vibrated and you could feel the bass. I then immeadetly removed the jumper wires (used in the amp by pass) and plugged in the amp. I played the same song. It was tinny, no bass and the volume was lower. After about 10 seconds he agreed to replace the amp.

    The new a 103 amp is great. Rich bass at all volume levels. If you haven't replaced your amp yet on your 2000 imapla. Go for it. You'll love it.

    If you call the GM customer Assitance Center refer to my file number of 05424125. I called them back after my amp was replaced so they could update their records.

    Everyone take care.
  • roderacerroderacer Member Posts: 311
    ...reception.

    I saw on a newscast last night the introduction of Satellite radio AKA "XM" radio.

    It will be a subscription bases service which will host numerous genres and the benefit is no fading or distortion due to terrain or distance.

    Pretty cool. I just wonder how a thunderstorm would affect it. I already see how the weather degrades the satellite cable systems out there.

    GM is planning on availability next year, I think, (correct me if I am wrong) in the Caddy STS and other models.

    $10/month for the service... just to listen to the radio! Geez! Good thing I don't live in the boonies!

    Later!
    RR
  • b4zb4z Member Posts: 3,372
    I came out of a '99 intrigue with the 6 speaker dimensional sound sytem. In my opinion the intrigue system sounds a little bit better than the impala's. I have the new amp.
    The intrigue probably sounded better because the tweeters were mounted on the doors by the mirrors.
    Has anybody changed the amp? Or should i just go with a more efficient speaker to get a little more volume?
    I like a/d/s but don't know if they will fit.I specifically don't like that the tweeter is down in the kick panel in the impala.
  • Just drill a hole in the upper door panels, and put tweeters in there. That's what I did. Makes a world of difference. Plus, replace the other 4 speakers, too.

    I didn't need a new amp, as I used very efficient JBL speakers. (I have the 103 amp.)

    I believe roderunner used Alpines. I don't know how efficient they are, or if he replaced his amp.
  • b4zb4z Member Posts: 3,372
    Put a SACD hybrid disc in my impala and got some improvement in sound quality. SBM process and DSD are probably the reason. I suspect the speakers are the limiting factor. They just don't do the vocals correctly. Thinking there is a midrange suckout.
    Give a SACD disc a try.
  • impalaboy2001impalaboy2001 Member Posts: 117
    Has anybody replaced their Factory Headunit with an AfterMarket one, and still keep onstar working. I've heard that some people installed a module called StarMod1 made by soundgate to keep their onstar system working and also have an aftermarket headunit.
    Chris
  • impalaboy2001impalaboy2001 Member Posts: 117
    What is a SACD??? And how do u make one?
  • b4zb4z Member Posts: 3,372
    SACD stands for Super Audio Compact Disc. It has been out for about a year and was developed by Sony and Phillips. It addresses the sound quality limitations of CD's. Cd's are 16 bit @44.1 khz.
    SACD's are 24 bit 96 khz.
    You can't make them but the hybrid discs are playable on a standard CD player.
    SBM is Sony's Super Bit Mapping program which records more detail on the disc. This is why i am hearing better sound on my Impala Stereo.
    SACD's have a more natural and relaxed sound than CD's. There is more detail and spaciousness and they are not harsh or fatiguing to listen too like Cd's can be.
  • patpat Member Posts: 10,421
    Hi folks.

    I just wanted to give you a heads up that very soon, perhaps as soon as tomorrow, this discussion will be hosted only on the Impala Owners Club board. That makes a whole lot more sense than having it hidden away here on the "General" board.

    If you are subscribed to this discussion, or if you find it by accessing the link to the Impala Owners Club at the top the Impala discussion on the main Sedans board, your method of finding your way here will not change.

    Sorry for the confusion - thanks for hanging in here with us while we continue to try to make the Sedans board easier to navigate.

    If anyone has any specific questions about navigation in Town Hall (or any other logistical issues), please drop by the Welcome to the Sedans Message Board discussion and talk to me about what's on your mind.

    KarenS will host this discussion once it moves, but I want you to know that I've enjoyed following your conversations about the issues that many of you have dealt with. And I'll still see you in the main Impala discussion.

    Thanks.

    Pat
    Host
    Sedans Message Board
  • Woo Hoo!
  • Karen_SKaren_S Member Posts: 5,092
    This discussion has now officially moved to Chevy Impala Owners club!

    KarenS
    Host
    Owner's Clubs


    PS> Don't be a stranger, Pat! :-)
  • impalals2002impalals2002 Member Posts: 8
    I just got a new 2002 LS, with the 8 speaker system, I know there are 2 in each front door and 2 in the rear deck. Now are there tweeters in the 6x9s which are the other two speakers or what???
    Thanks
  • night_owl1night_owl1 Member Posts: 760
    Congrats on your new car! Chevy counts the tweeters as another speaker. There are tweeters in the door speakers as well as the deck ones. So by their count, you have eight. Two speakers in each location.
  • 00impala00impala Member Posts: 474
    2 coaxial speakers in the rear and 2 speakers and 2 Tweeters in the front, ""The tweeters are seperate from the main speakers in the doors".they are located just adjacent to the main speaker but under the same grill, and the rear speakers are one unit in one location with 2 speakers each. Don
  • impalals2002impalals2002 Member Posts: 8
    Thanks for the info on the speakers. I was going to run an after market amp and need to get the power wire thru the fire wall. Has anyone done this and found a hole already there, or anyone know of a hole. Any books I can purchase that will tell me this kinda of info, also info about removing trim pieces and what not.
    Thanks
  • Don't replace the amp, unless you are going to replace the speakers. You would be wasting your money.
    I highly recommend replacing the speakers first. Then, if you still don't think it sounds good enough, replace the amp. You may find it unnecessary.
    The speakers are definitely the weakest link in the Impala sound system.
  • night_owl1night_owl1 Member Posts: 760
    I highly recommend that you purchase the Service Manual from Helm inc. The manual isn't cheap ($120) but the information in there is priceless. Their address, phone number and website is in the back of your owner's manual.


    You can also check out my site http://home.hawaii.rr.com/impala/ and look under the "How To" section. You might be able to find a lot answeres there. A link to the Helm website is in the "Accessories" section.


    I'm going to replace my rear speakers with a set of Sony XS-V6945M 6"x9" 4-way speakers sometime in the near future. I just got to get around to it. =)

  • Please audition the speakers before purchasing them. Sony makes excellent electronics, but their speakers are often not as good as their other products or as speakers by other manufacturers.
    Of course, it can be subjective, and they may sound the best for you.
  • harrakaharraka Member Posts: 24
    Hi - I have a 2K base Impala with the crappy amp in it. It was just on the phone with GM customer service who told me that they are replacing amps if they have been diagnosed with a problem - they transfered me to the dealership to make and appointment. Well I was at the dealership in July and they told me there was no problem with my stereo, so this time he told me there is nothing to check out. He flat out told me that GM is not replacing amps and that the part number is bogus and that everyone one of you that said they were getting new amps for free was lying. He said it was an internet scam. I am so mad right now! I want a good amp and they are really making me angry. Any suggestions on where I go from here. Thanks - I needed to vent!
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