Does anyone know at this point if you can take the stereo from a 1sb with the 6 disk and drop it in place of the cheap one in the 1sx? Any thing other than the stereo (I am also assuming speakers). I am particularly wondering about the wiring harness that is in place.

 

From what I've heard, all C6s have full wiring harnesses. It's cheaper than having different harnesses for the different trim levels.

However, you really don't want the 1SB radio. Bose blows. Just keep repeating that to yourself until it sinks in. Install good aftermarket in your 1SX. You'll be happier, and your bank account might be happier too unless you can get the 1SB radio from a junkyard.

 

I have the 1SA and thought I'd share my thoughts... I prefer the single disc to 6 so it was a better choice for me. As far as sound...it's the best stock stereo I've had. My cars include last gen monsoon TA and Z28, SC400 and LS400 non-naks, GMC Yukon, C5 Bose, Tahoe Z71. If you like aftermarket systems, you can clearly improve over the stock...but you might just be surprised with the base performance...I was.

 

If your into good sound the 1sa stereo won't cut it for you.The stereo in my Honda Odyssey was better,can't comment on the 1sb setup but from what I've read it ain't great either.Lots of us "sound heads" have changed out aftermarket with great results but it needs to be done at quality shops and can get pricey.

 

1SB is the only way to go...

 

The monsoon that was in my RA T.A. was awesome as far as I was concerned. The reason I am asking is that the stereo on my C5 sucked. The BOSE system that was in my 04 silverado was the bomb. One of the best things about the truck. I have not yet heard the base stereo but I did hear the 1sb level stereo and was impressed that it finally sounded as good as what was in my Silverado.

Are the head units between the 1sx and the 1sb any different as in the 1sb has a built in AMP that the 1sx doesn't? I know the boes system comes with boes speakers and if I am not mistaken, they have an amp on the speakers. I am not looking at the head unit for the sake of having the 6 disk or mp3 capabilities, I am just assuming that it is needed to work right with the bose speakers.

If I a wrong in this thining, by all means, someone correct me so I don't go waste money on the head unit. If I can just get the speakers or something and use it with the 1sx head unit, then that would accomplish what I am looking to do as well. What about a subwoofer? Seems to me my Monsoon system had one near the rear compartment of the TA. how Are the corvette systems different....or not.

So the short version of my questions are:

1.) Does the 1sb system have an amp in the head unit that the 1sx doesn't?

2.)Could I just drop in the Bose speakers and use my standard head unit and get the sound quality of higher end head unit?

3.) Does the premium system have a sub woofer that the cheaper system does not?

Thanks all again for the infol

 

There are some threads in the FAQ on BOSE upgrades... scroll down for the "Radio" or "MODS" section...

http://forums.corvetteforum.com/showthread.php?t=927981

 

BOSE sucks....its not worth the money...but the NAV system is nice

 

 

I am not sure why so many people rag on Bose. They obviously have different levels of systems or something. I don't know all the specifics on ohms...impedance...etc, I just know what I hear. That is what matters to me. I know the factory stereo in my C5 is just....ok, and in fact, it is lacking. Doesn't have enough ummmph to be heard while going down the highway with the top off. My silverado on the other hand has the Bose Gold system in it and it flat out rocks. By far, the best factory stereo I have ever had. I mean, it flat out jams. I want to try to get that sound quality. Does anyone here have the non-1sb stereo in their vette and also have a 2004 or so Silverado or Tahoe as well to where they could give me a comparison? I have not heard the non-1sb stereo. Just the 1sb and I thought it rocked rather well. You guys that say it blows, do you mean you just think it isn't crisp enough, or loud enough?

Thanks for all the information. I appreciate it.

 

Well, lets get a few things straight. The head units are not manufactured by Bose. They're made by AC/Delco (except the Navs, which are made by Denso). Many years ago, a Delco radio was one of the better car radios. But technology marches on, and there are better HUs out there now. Still, the Delco isn't really bad. It has limited equalizer functions, and is relatively low power (25 watts per channel), but not bad.

(The XM level problem is a separate issue having to do with the way the XM module is interfaced to the HUs in these cars. I have a strong suspicion about what they did wrong, but without schematics, I can't yet offer a fix.)

What's bad are the crappy Bose speakers (with no tweeters), the crossover frequencies chosen for them (which leave a gaping hole in the spectrum between low bass and midrange), and the extremely dubious concept of trying to make the sound *exactly* the same for driver and passenger via the mixed left and right signals fed to the center speaker (which kills the stereo sound stage).

Ted's fix of replacing the Bose mids with Eclipse mid/tweeter speakers takes care of the lack of highs for which Bose is famous. Keeping the Bose 10s as thumpers and filling in the mid-bass hole with a small powered sub takes care of the poor lows. Disconnecting the center speaker restores sound stage. No HU swaps or aftermarket amps are required to wind up with *decent* car stereo sound.

Now in a vert, you might still not have enough volume. If that's the case, then you're going to have to spend some money for bigger amps and speakers rated to handle high power (such as JL or BA). But if you want to keep what's left of your hearing, you won't go overboard with this. The HU uses standard impedances, so any aftermarket amp should work with it.

The ultimate audiophile will change out everything, of course. But that's thousands of dollars, and most people wouldn't appreciate the difference anyway. So only go this route if you're a real audiophile, or one of those loonies who compete in stereo power competitions.

As far as why the Bose systems in the pickups sound better, good sound is easier to achieve in a pickup cab, and they may have specified different speakers for the pickup too. But the systems in the Silverado only sound good in comparison to the one in the Corvette. Listen to the Infinity system in a Dodge RAM to hear a really good OEM stereo (which still sucks compared to high end aftermarket systems, but again that's for the golden eared audiophiles).

 

The big difference in the truck Bose system is the seperate sub woofer box in front of the console under the dash. This makes a huge improvement from other Bose GM systems, I agree I have a 04 Avalanch with the Bose and it is by far the best stock system. To bad the truck guys can't work with the Vette guys on sqeezing the Bose woofer box in

 

I thought they must have had a seperate sub woofer.

 

There is a common schematic for the UNO and US8 radios.

 

I already gave my $.02.....but, I have an 04 Silverado SS and the 1SA stereo in the Vette blows the truck Bose system away. Every type of music and every day of the week....

 

Does the SS have the Bose "Gold" system in it? Seems to me, there were two different systems offered. I first got a 2500 series with the regular one, then a 1500 series with the gold in it. The one in the 2500 wasn't really all that impressive.

 

That may be it... It doesn't have the 6 disc changer. My Z-71 Tahoe had the 6 disc, but I still don't think it sounds as good as the Vette.

 

I was given some info that i found very interesting from Reus System. They are a high end mobile audio upgrade place. The guy said that the C6 head unit in 1SB was in part designed by fujitsu ten the same people who make the eclipse head unit and that the head unit is really good finally but the amp and speakers are horrible.

Just take this for what it's worth as i am used to replacing the whole audio system. But if he is correct and there is a way to tap into line level before the amp instead of speaker level there might be away to keep head unit & replace speakers and amp and sound great!