C6 audio upgrade
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Originally Posted by Steve Germany
But, it is not needed at all. You can obtain HiFi signals directly from the head unit with a much cheaper adaptor from PAC and you will not have to cut your OEM wiring.
*Does this adaptor from PAC perform that function?
*What is "PAC"? Or who? Thanks.
-Tom
Safety Car
Joined: Jan 2006
Posts: 3,598
Likes: 0
From: indianapolis indiana
you could do it cheaper by getting a smaller amp for than the 300/4. since you really do not want much sund coming from the rear of the car. it is just for fill...i would use the stock amp on new speakers. you would be turning the back speakers way down and wasting the amp anyways. i have a 450/4 in my bonneville so it is 150 per speaker up front and 75 per speaker in the rear....this works out great but look lout it is VERY loud and you would need more then one 10 in a stealth box for the right ballance.
Thread Starter
Melting Slicks
Joined: Oct 2004
Posts: 2,863
Likes: 150
From: Woodland CA
Originally Posted by footba4672
FYI.....i put my switch for Clean Sweep where the cigarette lighter was.....
Burning Brakes
Joined: Apr 2005
Posts: 1,115
Likes: 0
From: Dallas TX
Originally Posted by Tom400CFI
Anyone?? Is this a stupid question or something??
-Tom
-Tom
However, the digital processor used here (Clean Sweep) is a much better quality piece (although 10X more expensive) that takes the same signal the PAC receives and digitally enhances and flattens the signal to get aftermarket head unit quality pre-amp signals (which some will argue is enhanced by digital processing in the amplifier). Check out the JL Audio website, as they have a couple other complimentary pieces to go along with it. If you are just adding a sub (i.e. the JL Stealth Box), the PAC is adequate. If you want improvement in all sound quality, and will run the other speakers with an aftermarket amp, then the Clean Sweep is a good alternative.
Either way works...it's just a matter of quality (which is subjective).
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Team Owner
Joined: Dec 2001
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St. Jude Donor '03, '17
Senior Member
Cruise-In V Veteran
The Bose in the C6 SUCKS...I was driving around with the top off the oher day and at MAX volume I caould barely hear it...my Bose in my ZR-1 was even better
Melting Slicks
Joined: May 2005
Posts: 2,039
Likes: 0
From: Stuttgart
Originally Posted by Big Ron 77
The PAC adaptor is a low-level to hi-level (RCA) adapter. It is typically used by splicing into speaker wires or using a wiring harness for your specific application (still using speaker outputs) to get you an RCA pre-amp output.
However, the digital processor used here (Clean Sweep) is a much better quality piece (although 10X more expensive) that takes the same signal the PAC receives and digitally enhances and flattens the signal to get aftermarket head unit quality pre-amp signals (which some will argue is enhanced by digital processing in the amplifier). Check out the JL Audio website, as they have a couple other complimentary pieces to go along with it. If you are just adding a sub (i.e. the JL Stealth Box), the PAC is adequate. If you want improvement in all sound quality, and will run the other speakers with an aftermarket amp, then the Clean Sweep is a good alternative.
Either way works...it's just a matter of quality (which is subjective).
However, the digital processor used here (Clean Sweep) is a much better quality piece (although 10X more expensive) that takes the same signal the PAC receives and digitally enhances and flattens the signal to get aftermarket head unit quality pre-amp signals (which some will argue is enhanced by digital processing in the amplifier). Check out the JL Audio website, as they have a couple other complimentary pieces to go along with it. If you are just adding a sub (i.e. the JL Stealth Box), the PAC is adequate. If you want improvement in all sound quality, and will run the other speakers with an aftermarket amp, then the Clean Sweep is a good alternative.
Either way works...it's just a matter of quality (which is subjective).
http://www.logjamelectronics.com/pacaaigm24.html
There is some noise induced by the the line level adaptor but is is not noticeable at the sound level inherent to the C6 interior noise (I by passed the line level adaptor and soldered HQ RCA jacks on the inputs to the line level processor (the black box) in my install). The unit is plug and play - you do NOT have to cut any wiring if you do not want to by pass the line level adaptor - unlike the JL unit. You will have to install new amp(s) and wiring for the upgraded new speakers.
Last edited by Steve Germany; Jun 13, 2006 at 07:39 PM.
Burning Brakes
Joined: Apr 2005
Posts: 1,115
Likes: 0
From: Dallas TX
Originally Posted by Tom400CFI
Big Ron and Steve, THANKS for clarifying the situation. Those were great posts that helped me understand the PAC and other options. Thanks.
-Tom
-Tom
You will need to play with the amp gains and (depending on the adustability of the DSP in your amp, if any) equalization with either product, although I give a nod to the JL unit for creating a very nice pre-amp signal from a stock head unit, based on their specifications, as I have not used one yet, but have heard the difference side by side. For 90% of the listening public, nobody could likely tell a difference in the 2 (other than saving $200 by buying the PAC adaptor
)
