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Sound system
Hi,
I want to improve the sound system in my ‘84. I am looking for recommendations on head unit, need for amp(s), speaker’s and need for sub woofers. I am also wondering if I would better off using more modern wiring or is the factory wiring sufficient? I am not looking for something outrageous just good sound quality. Thank you for any suggestions! Tim |
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When I did my sound system upgrade I used an X pipe and a RMB! Sounds great I'm very happy.
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John Curry (Drift King) 928OC member Grand Prix White 1994 GTS AT (The GTS) Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz) |
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Thanks!
I am not sure I know what a x pipe or RMB is but I will look into it. Did you use stock head unit and speakers or did you upgrade to after market components? Was an amp necessary? |
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Tim,
Beran was making a funny. An RMB (Rear Muffler Bypass) will make your car sound more throaty. No additional HP or speed. Sound only. An X-pipe is an engineered exhaust that joins the two sides of the engine exhaust to create less back pressure and enhance HP. Berans' response had absolutely nothing to do with any part of the stereo, but it does make the exhaust sound even better. ![]()
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John Curry (Drift King) 928OC member Grand Prix White 1994 GTS AT (The GTS) Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz) |
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Tim I was being a wise guy, I'm glad stepson explained this, thank you stepson! I couldn't help myself because I just thought it was so funny that I actually don't even have a working radio at all! Regardless I do enjoy the sound of that wonderful engine. Maybe some day I will get to the radio. I'm sure it would be nice especially how quiet these can be with windows up..... and your foot not in it.
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I thought you were talking about the exhaust but there are so many options today that you could have said just about anything and I would have thought it was something that was new in auto sound systems! Reminds of those old valves that the old timers use to tell me to go get!
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Beran,
I currently only have a working radio in 1 of my 5 928s. I do enjoy hearing the engine. Tim, I have retro-fit a CDC220 (which is more modern Porsche radio/CD player)into a couple of my 928s. I called Stephan at SW Stereo and got the wiring mated from the old radio connector to the CDR220 radio connector. I didnt have to cut wires that way. In addition, Hans sent me some new speaker covers for the speakers he has recommended in the past to replace existing door speakers which he recommended and I bought. They sound much much better than the originals maybe due to the age of the originals or maybe they sound better than the originals ever did. I don't know for sure. I cannot put my hands on the invoice this second, but when I find it, I'll post the vendor and the speaker model number for you.
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John Curry (Drift King) 928OC member Grand Prix White 1994 GTS AT (The GTS) Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz) |
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Thank you!
Can I assume that you used the factory wiring harness? Is the fader on the left side of the drivers seat worth maintaining? |
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I installed a JVC touch screen radio, but they don't make it any more. It is a single DIN so fits in the same slot. It also shows DVD and CD. For a Woofer, I installed one that fits in the spare tire, made for some other car, but sounds great without any modifications to the car. I also put in an amp for the Woofer and mounted it under the passenger seat. You might find my old posts on here some place. I bought the Woofer on Ebay. It comes in it's own enclosure made to fit in the center of the spare tire. Easy to remove.
What was also neat, I put the Porsche logo into the screen on the radio. So it looks like stock!!!
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1986 928S 32 valve engine All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires. Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster |
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Yes, I used the original factory wiring. The fader is moot with newer head units, so unless you car is a concourse queen, I'd wire around that factory fader.
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John Curry (Drift King) 928OC member Grand Prix White 1994 GTS AT (The GTS) Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz) |
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Quote:
https://forums.pelicanparts.com/porsche-928-technical-forum/605129-jvc-dvd-cd-radio.html The radio has its own fader settings, so I bypassed the one by the drivers seat.
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1986 928S 32 valve engine All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires. Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster |
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I used a Bose spare-tire subwoofer from a Nissan Murano that fit perfectly. Cheap, too.
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I installed one just like that. Works and sounds great. I also put in a sub woofer amp.
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1986 928S 32 valve engine All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires. Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster |
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Thanks, I saw one of these on eBay awhile ago but didn’t get it. Will have to look again!
On more question regarding speakers. My 928 has 2 speakers in each front door (tweeter and a regular one), 2 speakers on each side by the rear seats, and 2 speakers at the rear on either side panel. Does this sound correct? Here’s my question? The head unit seems to have connections for 2 front speakers and 2 rear speakers. If I have 4 speakers on either side how would I connect the speakers so they all work correctly? I have a amp but it doesn’t do much different. So how do I make all of this work? Thanks for any input anyone can give me on this! |
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1986 928S 32 valve engine All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires. Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster |
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tim - my 84 has the same speaker setup - so yours sounds correct - i removed the factory fader and wired the two rears (one by seat and one by hatch) on each side together as right and left rear on head unit - let the head unit control fade - as i recall i ran new wires to all rear speakers - seemed easier than using the mess of wires at the factory fader
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Thanks! That is what I was planning to do if there weren’t any other suggestions that sounded better.
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Hi
I bought a subwoofer like the one described above however it did not come with the electrical connector that fits into the side of the speaker. By any chance does anyone have one or know where I could get one? I may have to go to local junk yards for this piece. Anyone know the wiring for this piece in case I have to make my own connector. Thank you, Tim |
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1986 928S 32 valve engine All stock, automatic, 539 Weissgold Metallic, 70K original miles, Hankook Ventus 2 tires. Previously owned: 67 Vette, 427 L88 Stingray, 74 De Tomaso Pantera L. Latest addition: 2000 BMW Z3 Roadster |
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