Author Topic: Build thread - Rob's Audi UR Quattro  (Read 75712 times)

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Offline RobClubley

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1200 on: November 13, 2017, 02:22:07 pm »
Interesting. I always thought sealed was better for rock. Makes it more punchy.

Sealed would be much easier to integrate into the car so I'm tempted to go for that. It sounded great in a sealed MDF box in the Skoda :)

http://www.soundstream.com/manuals/EXACT%20SUBWOOFER/EXACT%20Subwoofer%20Manual.pdf

Offline McDoof

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1201 on: November 13, 2017, 03:43:11 pm »
Looking at the you would be looking at band pass enclosure for rock. Not really something you can do when you are in a tight spot. Plus you need more space. 0.5 for sealed, 0.75 for vented and lofty full 1ft3 for a bandpass enclosure. I recon just stick with a well insulated sealed enclosure. Unless of course you put in an MDF parcel shelf and cut a hole in that. Infinite baffle. Then you can just slide the original one back in when you want it back to stock. Plus you can mount a pair of 6x9s in there and the amp underneath.
flush mount the lot, then acoustic carpet over the top so it's all invisible when the boot is closed.
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Offline RobClubley

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1202 on: November 13, 2017, 03:59:44 pm »
Looking at the you would be looking at band pass enclosure for rock. Not really something you can do when you are in a tight spot. Plus you need more space. 0.5 for sealed, 0.75 for vented and lofty full 1ft3 for a bandpass enclosure. I recon just stick with a well insulated sealed enclosure. Unless of course you put in an MDF parcel shelf and cut a hole in that. Infinite baffle. Then you can just slide the original one back in when you want it back to stock. Plus you can mount a pair of 6x9s in there and the amp underneath.
flush mount the lot, then acoustic carpet over the top so it's all invisible when the boot is closed.

In most cars maybe. But the quattro has a metal (structural) parcel shelf, metal behind the seat back and a large fuel tank between the two.

I went with a sealed MDF box in the back of the Skoda because I'm more comfortable working with wood/MDF. Tempted to go the same way here as I'm not sure if I want to get into the mess/fumes/fibres/time of doing a fibreglass enclosure. Given that it will all be hidden from view :D Of course it will weigh more. Hmm.
« Last Edit: November 13, 2017, 04:04:49 pm by RobClubley »

Offline RobClubley

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1203 on: November 14, 2017, 10:25:12 pm »
I did a bit more playing with the sub tonight. I looked into doing a fibreglass enclosure but I really don't want to get into that much mess, fumes and time! So:
Step one - make a CAD template (Cardboard Aided Design, thanks Project Binky!)

Step 2, cut a piece of leftover MDF to shape.





Step 3, make a hole in the spare trim piece.


Step 4 - test fit the sub. It fits well, plenty of room.

I'm planning to keep it simple, bolt the MDF to the bodywork, fit the trim over the top then screw the sub in place.
See what it sounds like! If it's not right it'll be plan B
Next step after that is to get some thin ply and use it to strengthen the trim, then find some vinyl and leather to try and match the existing stuff.


Offline RobClubley

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1204 on: November 15, 2017, 10:20:51 am »
Sneaky school run on the way for more rust repair.






Offline brian

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1205 on: November 15, 2017, 11:47:31 am »
Well, that looks fabulous in the great outdoors, you should be very proud of all your work
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Offline RobClubley

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Re: Build thread - Rob's Audi UR Quattro
« Reply #1206 on: November 22, 2017, 09:42:09 pm »
Did a bit more tinkering with the spare side panel to work towards get the sub fitted. I bought some thin ply to strengthen the panel so I can line it - couldn't find red leather but I got some vinyl which I think will look okay. We'll see if it does!
I used contact adhesive to bond the two wood surfaces together. The scrap metal pile came in handy to  weigh it down.