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How to Make a Fiberglass Subwoofer Box

Step 99. Positioning and Volume

9. Positioning and Volume
You should now take into consideration how much volume you will have in the speaker box itself. If you are just now figuring this out, then you may have problems with having too little space for the desired sub you are using, which could be very bad. A method that has been proven to be an easy and cheap way for finding volume is to use packing peanuts. Take your subs desired volume and fill up your box with that around of packing peanuts, hopefully you took the volume and wheel well volume size into consideration before you started.

Take your speaker ring, and place that where the packing peanuts stop, you will want to be a little bit further out than that due to your subs coil taking up space. (Remember, its better to have your box built with too much room rather than not enough.) Hover your speaker ring in that area, and remember about where it was. You can now decide if you want to angle it towards anything as well, the front of the car, and other side of the trunk, or upwards.

This is now a rather tricky part you will need to take your hot melt glue gun, and dowel rods and some how make your speaker ring float in the area where you want it to be. There are other methods with using plumbers metal positioning wire to hold it up, but I feel that's just more work. Make sure the ring is firmly in place, you don't want it to come undone or collapse.
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1 comment
Jun 19, 2010. 10:21 PMLordLancifer says:
are the wooden dowels ever going to be removed? will the fiberglass enclosure be strong enough to hold the woofer/speaker without them?

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