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if possible could you scan a hand drawn wiring diagram. that way you dont have to take the door trims off again. and may prevent me cutting the wrong wire ie. airbag sensor
YEs a wiring diagram would be great.
Also more info on the crossovers and building them plus some jaycar part numbers if you have them.
I wnat to do the exact that you have done.
Thanks for your help.
for those with 8 speaker setup wanting to add midrange the speaker size is
4" note: shallow depth, max 45mm to clear the window mechanism. and follow dimsim's crossover recommendations
I took the trims of and this is what we have. Front-1in tweeter,7in woofer. Rear-1in tweeter,6in woofer. The only crossover is going to the tweeter at 4.7uF (8800Hz), the woofer is getting the whole frequency range(which it shoudn't)and is making it sound cr_p. VW were no help in sourcing the 4in mids so I bought my own. As I kept the rest of the system I was not going to spend a lot of money and ended up with VDO Dayton 2ways,$60-80 I think. I removed the tweeter from the 4in mids so all I had was the woofer. V difficult to install due to magnet size but they are now rock solid.Crossover components are; 7in-0.22mH,4in-0.1mH & 200uF,tweeter left as is. From the 0.22mH inductor remove 12cm of wire, & from the 0.1mH inductor remove 15cm. This gives a freq. split of 7in 0-3000Hz,4in 200-8000Hz & 1in 9000 & above. This is all 6dB/oct slope. Inductors & capacitors are mounted on the positive wire only. Get the 100volt non polarised crossover type of capacitor so it won't matter which way you install them. For the 4in it doesn't matter what comes first cap. or ind. The wires come from the head unit & go to the 7in. They then branch from this plug and go to the tweeter. Do a diagram of what you have & a diagram of what you wish to do.Think 3 times, cut the wires once. Mounting the 4s took me 3hrs , making the crossovers 20mins, conecting it all up 1.5hrs. I will not say this job was easy but the result was worth the effort. There is a lot more to it, if you need to know more I will be glad to help.
I dont quite understand your crossovers.
You say use 0.22mH for the 7" & 0.1mH & 200uF for the 4" and leave tweeter as is. All this is 6dB/oct slope however this crossover building guide shows either a cap or coil for 6dB/oct and not both.
Can you please help as I'm a bit lost what to do so i need more detail.
Diagram 1 shows how VW have wired the speakers. Note how the wires go to the woofer first then to the tweeter. Red line is positive, black is negative. From memory the only wires that are these colours are the ones going to the tweeter. There is also a polarity indicator on the plug going into the woofer. All diagrams are for 1 channel, ie the front left door , and will have to be repeated for the other side.
Diagram 2 shows how the inductors & capacitors are wired in. Note how the components are wired in series on the positive wire only. The negative wire will go straight to the speaker. Position X is a point where you will have to splice in the negative for the 4in.
Diagram 3 shows how the 3 components can fit together into a compact unit. I soldered all conections & then covered each item individually in insulation tape so that when they are pressed together they will not short out. The capacitor will fit neatly between the two inductors, I then taped everything together into a single unit for ease of installation. Make sure that your wires are labelled correctly. You will have one wire that will be your positive in, one will be going to the woofer(through the 0.22mH), one to the 4in(through the 200uF & 0.1mH) & one to the tweeter.
Diagram 4 shows the location of my crossovers relative to the speakers. You can put yours where ever you want.
Nayfen is correct about the speaker depth, this is why I had so much trouble installing the 4in speakers.
Part no.s are - 0.22mHinductor - LF-1310
0.1mH inductor - LF-1308
200uF capacitor - RY6928
Hope this helps
What model VDO Daytons did you use? just so I can see what style of 4 inch you used ...i.e. round edge or with screw tags? Did you use a spacer for the speaker if so how thick.... Do you have a picture of the setup?...just to save some time I would apprestiate it.
Logzy and I did the mid range speakers today..... took a long time to do.
Ended up using a dremel to ground small amounts of plastic off the plastic hole filler and off the mounts where the speaker was attached. The speakers we used were Pioneer dual cone speakers. Not a mod that is easy to do.....
But here is some pics of the semi finished product
My view re the quality (GTI) is that the audio quality is actually very good for a factory setup, about 1000% better than the Holdens that we have had.
This make it quite revealing of what is being fed to it. Hence CDs sound very good, but much FM sound sounds quite poor. I hear sizeable compresssion artefacts coupled with distortion on FM. Whether this is the FM station's audio processing or the FM tuner in the head unit I am not sure, but I suspect the former. Maybe the de-emphasis is not set for Australia...
I have not played mp3s, but mp3 is not a high quality medium, varying from poor to average depending on the chosen bit-rate. Listen for splashy treble, an overally thin/egdy sound, and ear fatigue after prolonged listening. Maybe that's why the mp3's sound poor - the audio chain is revealing their inherent limitations.
My view re the quality (GTI) is that the audio quality is actually very good for a factory setup, about 1000% better than the Holdens that we have had.
This make it quite revealing of what is being fed to it. Hence CDs sound very good, but much FM sound sounds quite poor. I hear sizeable compresssion artefacts coupled with distortion on FM. Whether this is the FM station's audio processing or the FM tuner in the head unit I am not sure, but I suspect the former. Maybe the de-emphasis is not set for Australia...
I have not played mp3s, but mp3 is not a high quality medium, varying from poor to average depending on the chosen bit-rate. Listen for splashy treble, an overally thin/egdy sound, and ear fatigue after prolonged listening. Maybe that's why the mp3's sound poor - the audio chain is revealing their inherent limitations.
Rick
If only it came with a turntable and concrete stands for the speakers eh?
In seriousness, I agree, it's good for standard fitment. The very first thing I have done with any new Jap cars I have owned is ditched the factory speakers. This time around I haven't felt the need.
We built and fitted the crossovers as described by dimsim and added the 4" speakers in the front of our GT Sport.
A dramatic improvement over the standard 8 speaker setup.
If only it came with a turntable and concrete stands for the speakers eh?
In seriousness, I agree, it's good for standard fitment. The very first thing I have done with any new Jap cars I have owned is ditched the factory speakers. This time around I haven't felt the need.
Agreed, and not just Japanese cars. The Holdens I mentioned were upmarket, recent versions, with good Blaupunkt head units and the tinniest Korean or Taiwanese speakers available.
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