GT-S audio

Mad-Grip

Junior Member
Messages
45
After owning the GTS for a few weeks now (only drove it twice so far as I'm working away) I'm quite disappointed with the audio system. I've read threads on ripping the whole system out, but id like to keep the factory fitted look, would a simple swapping out of the speakers make a big difference or would I just be flogging a dead horse?
I appreciate the exhaust noise is a good enough sound track, but on the very few long drives I do, it'd be nice to have a half decent sound system.
As others have said before, you wouldn't think a car that demanded this price tag would have such a lame system
 

Lavazza

Member
Messages
1,060
Have you tried adjusting the settings?
I have the Bose stereo in a 2009 car and it sounds pretty good to me.
What are you comparing it to, do you have a benchmark?
 

Mad-Grip

Junior Member
Messages
45
Thanks for the reply.
Mines a 2015 (non Bose) I'm only really comparing it to previous cars. The C63 had a hardon/kardon surround system that was excellent in every way, my previous Porsche 911 wasn't so good, but much better than the GTS. I've tinkered with the settings but it's still not great. I'm going to speak to my local audio place and see what they recommend, as mentioned, I want to keep it looking stock and hopefully a speaker upgrade will help. The jukebox is extremely slow to upload to aswell, so I'll probably work it off a USB, and no DAB on a 2015 model? Seems a little cheap
 

Mad-Grip

Junior Member
Messages
45
Great links, thank you. I had seen the full install, but not the additional "cover" screen.
I thought I'd try the usb today, but to no avail. It's not recognised which ever way I format it or catalogue the files. Trying MP3 cd's next
 

Mad-Grip

Junior Member
Messages
45
I've tried fat32 and NTFS, both say no usb recognised. I've put individual folders (not folders within folders for double albums). I've tried directly into the usb socket and also a 4 bank usb adaptor plugged in there.
I originally tried it with a small capacity stick (1gb) and it seemed to work but the files were all messed up, since putting a larger usb stick in, there's nothing
 

ChrissGT

Member
Messages
341
Planning to upgrade the audio in mine. Its also a none bose car. Already have a decent set of front speakers im planning to put in during the christmas holidays. I have an amp ready for install as well, but i found out my rear parcel shelf does not have a subwoofer opening. So i might have do a bit more work then planned.

I will go by it step by step, first replace the speakers and check sound, then add amp and check sound, then add subwoofer. If at any stage im happy ill just leave it at that stage.
 

Mad-Grip

Junior Member
Messages
45
I'd be interested in seeing your install and to know your thoughts. I'm tempted to bite the bullet and get it all replaced, but hopefully a speaker swap will make a difference to the sound, still unsure what to do for music storage
 

ChrissGT

Member
Messages
341

ChrissGT

Member
Messages
341
So I replaced my front speakers on my 2007 4.2. My car has no bose option (no bose dsp in the trunk). Although the front speakers were bose. The front woofer were really light compared the new set going in, no real magnet to speak off. So when replacing I was already convinced this would be a great improvement.

After replacing the speakers I seems that the 2007 magnetti NIT pre filters the front and rear channels. Which results in almost no low/mid frequencies being sent to the front speakers. Replacing them didnt really yield a lot, I got some clearer sound, but not the extra mid/low i was hoping for. (I was able to hookup my tweeters properly, one was just laying in the door).

If you want to check this out for your model car, just go into your audio menu and set the speakers to full front and then full rear. You'll notice the difference in frequencies (or not, might be newer models have different settings).

For the amplifier this is an issue as well. I need a clear unfiltered output signal from the headunit to run an amp. So for now the amp is on hold. I have to figure out how to get an unfiltered audio output from the NIT.
I think there might an option to change the proxi and configure it have the Bose SDP. I know that creates a unfiltered speaker out signal (the bose dsp does the filtering). But no idea what other setings this would impact (maybe people could chime in if they know anything affected by the bose setting).

I'll update here once I get my usb/aux cable installed. After that I have to go in for a proxi update anyway, so it should be fairly simple to request 2 proxi files, one with and one without the bose enabled.

I attached the proxi file configuration for referenec.

proxi config manual
 

Ebenezer

Member
Messages
4,445
Interestingly it says you need to tell it when you are changing GT wheels between 19 and 20 inch, but no mention for QP
Eb
 

CatmanV2

Member
Messages
48,547
How do you know there's not a high pass filter in circuit as opposed to the NIT doing some kind of processing?

C
 

ChrissGT

Member
Messages
341
How do you know there's not a high pass filter in circuit as opposed to the NIT doing some kind of processing?

C

Still something to check for as well. That would be the most obvious route, although i couldn't find any diagrams of documentation mentioning that sort of filter.
Didnt have the time to check it, although it should be pretty straightforward to check.
 

CatmanV2

Member
Messages
48,547
The output from the NIT, at least physically, is a dead standard ISO. Given that this is also fitted to a load of Peugeots, I'd be really surprised if it was doing the kind of processing you suggest but hey, I've been wrong before. This morning :D

C
 

ChrissGT

Member
Messages
341
I kinda hope you are right, since that would be a DIY fix. But then again, this NIT seems to like to be in control of everything going on. Much like someone else I know :eek:
 

ChrissGT

Member
Messages
341
I guess connection a bit10 should be fairly straightforward. I was looking into the same solution but then with a much cheaper minidsp.
My plan was/is to use a quadllock extender (quadlock being the plug with all the mini iso plugs in it). Then cutting into the speaker wire that are in the extender, using a high/low converter into the DSP and then back to quadlock wires. This would leave the original wires and connectors intact.

It would be equally easy to run the signal from the DSP to an amp and then back to the speakers as well. Just have to pull out the interior to get the wires from the front to the back (or buy a really small amp and put it somewhere in the front).