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06-24-2002, 06:54 AM
The subs are not enclosed yet. There are too many curves in the areas to build a box. I'm thinking about making a fiberglass mold of the areas. I have read several "how-toos" on this but dont know where to buy the material. Any help would be appreciated.

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06-24-2002, 12:09 PM

mike uk
06-25-2002, 12:13 AM
You would be right in that a fibreglass box is a big project. Luckily for me I had a friend who was willing to have a go. However it took him about 11 hours just do make one behind the drivers seat. It has an 8 inch sub in there and sounds great.
If you need the leg room then I would suggest having one just behind the passenger seat. You wont get that "punch" in your back but I would guess that it is the most bass you will ever get in a Z3.
Also if you havent already I would use 6.5's up front. As this makes a huge difference too.
I gotta call my friend now and remind him to start on the second box.(Poor guy!)

06-25-2002, 05:25 PM
Right now I have some rockford 5" in the footwells. They really sound horrible. They keep popping. At first I thought that there was just to much air back behind them. So I ordered some speaker baffels which didn't help. I hooked up a friends spare 5"-7'speaker last night to the footwell wires and they sounded great. Guess it was just too much watts going to those speakers. The rockford's rms is 40 with a max of 80 and I have 50 watts going to them. Any good $80 6.5's? I don't feel like spending much since I just wasted my money on the rockfords.

Do you have any pics of your sub enclosure? Mine are set up in the trunk right now, but I'm not really sure that I will be able to here them even when I do get them enclosed. There is just too much metal inbetween the trunk and the interior of the car.

mike uk
06-26-2002, 11:02 PM
Hi here is a pic of the sub behind my seat

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inside is a dei sub specially designed for shallow enclosures, as it has the magnet on the front to save space. You can find it on the dei site.
Im not very technical but I will try my best. First if you hate the sound of your 5 inch (fronts?) then it could be that you have too much power going to them as this will make them distort when you turn it up. However you say they are popping which may mean you have damaged them. Try turning the gain down on your amp. If they are gonners then you are going to have to get your wallet out I'm afraid :-(
My "high end" speakers are available for about $430 ($700 in uk!) so I would guess that $200+ wikl get what I call decent speakers. People on the board seem to like Bostons but I see these as being good on bass but not so good on quality, so your music tastes is important in what speaker to buy.

I agree about the subs in the trunk as a friend let me try his in my trunk and I could barely hear it. Thats why I have them behind the seats. If you are tall then I suggest 1 behind the passenger will still give a good sound.

To give you an overview-
1) Better speakers will cost more than $80
2) If you dont want subs in the trunk try a 6 in the centre storage area
3) How about a micro sub in the passenger footwell or maybe get a set of three ways at the front with a 7 or 8 inch bass moulded in the door pockets (Alot of work)?

Hope this helps.

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