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Re: Replaced head unit (AS3 system), rear shelf speakers don’t work Posted by bobc [Email] (#473) [Profile/Gallery] (more from bobc) on Wed, 2 Jun 2021 14:32:52 In Reply to: Replaced head unit (AS3 system), rear shelf speakers don’t work, Mike Keller1, Wed, 2 Jun 2021 10:13:39 Members do not see ads below this line. - Help Keep This Site Online - Signup |
did you keep the amps? did you convert the head unit output to balance line output?
the AS3 does some unexpected things. With some study and some trial and error I discovered that the amp does double duty. It takes 4 *balanced line level inputs*. It then amplifies and filters the signal and sends output to each of the 8 or 9 speakers.
so the amp decides what is going to the subs on the shelf based on the signal coming in from 4 outputs.
i documented my head unit replacement on my 2008 here, it might be helpful:
https://www.saabnet.com/tsn/bb/9-5/index.html?bID=282149
_______________________________________ '08 9⁵ 2.3T SportCombi, Polar White '01 9⁵ Aero Midnight Blue (benched) '00 9⁵ Aero Midnight Blue (rescued) '99 9⁵ Base model, Cosmic blue '00 9⁵ Aero Silver (RIP - transmission )
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