Citi Golf acoustics

[RudderVator]

I am taking delivery of my first car soon it is a 97 Citi Golf 1.4
What i would like to find out from other forum members is what size speaker would fit into the door cards? Perhaps if they have done this kind of upgrade themselves?

It is my understanding that the actual size is not the biggest problem but rather the depth of the hole in the door that the speaker fits into? As the doors are pretty thin so the magnet would hit the door inside. No one has given specs about how many mm space you have inside the door anywhere on the internet with these cars.
The speakers i have in mind are these
http://www.autostyle.co.za/alpine-spg-13c2-5-2way-200w-speakers.html
According to specs sheets they are about 42.2mm from the front of the speaker and the magnet at the back also keeping in mind the magnet would need a couple mm to move.


Now before you think oh gosh here we go again.. with the kid in a citi that wants to wake up the whole neighbourhood i just want to replace the Headunit so that i can play digital format music from an iPhone or iPod. And not only be limited to CD's as i own about 6 physical CD's and I frankly think they are a PITA.
Basically all my music is in a digital format so thats my only reason for replacing the old headunit, and the speakers in the door potentially as i have been told the stock speakers are really bad and also have a way lower RMS rating than the headunit? I have not gotten a solid answer yes or no on if that would cause problems for the speakers if the headunit has a higher RMS than the speakers.
I have a single Din headunit in mind already that i think would suite my needs. All of the Alpines seems to have 50w RMS per channel.
http://www.autostyle.co.za/car-audi...cd-receiver-with-usb-and-ipod-controller.html
http://www.autostyle.co.za/car-audi...-cde-183bt-mp3-cd-with-usb-and-bluetooth.html

 

[LCBXX]

I'd save R500 and buy this http://www.autostyle.co.za/car-audi...r-deh-x4750bt-mp3-with-usb-bluetooth-rds.html
More RMS output than what the speaker can handle continuously will only burn the speakers voice coil, rendering it useless. That said, the odds of ruining a 35-40W RMS speaker with a 50W RMS headunit is almost 0. Note that the RMS rating on the headunit is maximum - unless you turn it up full all the time you can safely drive a 10W speaker without problems.

The flimsy door panels on the MK1 Golf means that you will get horrible low frequencies, irrespective of what speakers you fit.

 

[Fudzy]

Congrats on your first wheels, I'd recommend going over to the VW forum www.vwclub.co.za/ (there are probably others)

Would also highly recommend a BT unit, just check whether the headunit has an internal mic or an external one as you will need to plug it in BEFORE completing

 

[RudderVator]

I'd save R500 and buy this http://www.autostyle.co.za/car-audi...r-deh-x4750bt-mp3-with-usb-bluetooth-rds.html
More RMS output than what the speaker can handle continuously will only burn the speakers voice coil, rendering it useless. That said, the odds of ruining a 35-40W RMS speaker with a 50W RMS headunit is almost 0.

Congrats on your first wheels, I'd recommend going over to the VW forum www.vwclub.co.za/ (there are probably others)

Would also highly recommend a BT unit, just check whether the headunit has an internal mic or an external one as you will need to plug it in BEFORE completing

Thank you Fudzy! And icbxx for providing clarity on that. Now to only get information on the speaker size issue or wait until i can physically pull the door cards off and measure the depth myself.

The second Alpine Unit for R2100 has everything in terms of Bluetooth, Aux in, Usb connectivity and Bluetooth handsfree calling. It does come with the external microphone in the box according to alpine and all other connectors that you will need.

 

[Ancalagon]

Don't get too worried about the RMS output of the headunit itself. From the reading I did on the subject, the maximum wattage that a headunit can send to speakers is more limited by the input power it receives than its internal working components. I can't remember the exact numbers, but its something like the entire head unit only receives 100w in total, and it has to share that with the 4 speakers and its own internal workings. So, even if the amplifier of the head unit is technically capable of producing 50w per channel, in practice it never produces anywhere near that much. I'm just using 100w as an example, but the important thing is that this limit arises because all cars have to use the same voltage for their internals (14.4v if I remember correctly) and also the same amperage.

Long story short - if you need more power for speakers, a separate amp is the way to go.

Start with a BT headunit and new front speakers.

 

[GreyBush]

I had such an awesome setup in my golf.

6" splits in the doors
4x6 limpets on the back board (actually the area to either side of the back board)
12" rockford p1 in a sealed box
4 channel amp.

Can't remember the specific wattages of everything but it sounded great.

 

[LCBXX]

4x6 Limpids? Is that 4x 6" Limpids 'cause there is not such thing as a 4x6 limpid - that would make it an oval speaker and not round...

 

[GreyBush]

4x6 Limpids? Is that 4x 6" Limpids 'cause there is not such thing as a 4x6 limpid - that would make it an oval speaker and not round...

They were oval.

http://www.amazon.com/Lightning-Audio-L46-Inches-Speaker/dp/B00DUKE7HY

 

[RudderVator]

Don't get too worried about the RMS output of the headunit itself. From the reading I did on the subject, the maximum wattage that a headunit can send to speakers is more limited by the input power it receives than its internal working components. I can't remember the exact numbers, but its something like the entire head unit only receives 100w in total, and it has to share that with the 4 speakers and its own internal workings. So, even if the amplifier of the head unit is technically capable of producing 50w per channel, in practice it never produces anywhere near that much. I'm just using 100w as an example, but the important thing is that this limit arises because all cars have to use the same voltage for their internals (14.4v if I remember correctly) and also the same amperage.

Long story short - if you need more power for speakers, a separate amp is the way to go.

Start with a BT headunit and new front speakers.

That is the plan thanks for the detailed explanation. The car is just a first car and will be handed over to the nephew for his turn in a years time or so i am not gonna spend masses and masses of money on the sound. Heck i might even take the headunit out put the stock one back and sell the new single Din headunit for extra money for the next system lol would be awesome to have Double Din size as an option on the next car.

I had such an awesome setup in my golf.

6" splits in the doors
4x6 limpets on the back board (actually the area to either side of the back board)
12" rockford p1 in a sealed box
4 channel amp.

Can't remember the specific wattages of everything but it sounded great.

That sounds like a mighty setup! You might not remember what you did at the door cards in terms of getting them to fit? Did you put spacers or pods or such in? Or was it just a straight fit?

 

[GreyBush]

Straight fit, I had it installed though so not sure on some of the details.