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However, angle-flush mounting needs you to drill a hole in your door panel large enough to accommodate the entire tweeter cup. We trimmed the cutout with an exacto blade. For example, you would want to turn on the setting to block all frequencies above 100 Hertz if you are running subwoofers with the amp. We must take this volume into account. For example, one 10-inch subwoofer usually requires an enclosure with 1 to 1.
powered car subwoofer
Lastly, you need to connect your new creation to you overall power source and start listening to the job you did. This is much easier because all you have to do is multiply the driver's Vas by the number of drivers you intend to use, and then use this new value of Vas in the box calculations. Ideally, the tweeter should be no more than 1-foot from the woofer to maintain a unified sound field. Try listening with the boost on and off to determine what you like best. The volume of a cylinder is pi*r2*h, or (3.
Please note that these were located at http://www.caraudiohelp.com/plans_for_subwoofer_enclosures/plans_for_subwoofer_enclosures_sealed.htm
Plan #1 - Sealed Subwoofer Enclosure
WinISD recommends a 1.55 cubic foot box for our sealed enclosure. We'll achieve this by using 3/4 " MDF for the enclosure with external dimensions of 15.5" x 24 " x 10 ". This will be a simple rectangular box. Modeling the enclosure we see that it has a 87 dB sensitivity and a -3dB (half power) frequency of 42 Hz. This box should give very strong output when it is combined with the 12dB/octave boost provided by most automobiles.
JL Audio 10W1
SPL (1W/1m) - 87 dB
-3dB @ 42 Hz
Here is the layout of our subwoofer enclosure. We will need to cut the following pieces:
SIDE QUANTITY DIMENSION
TOP/BOTTOM 2 24" x 10"
FRONT/BACK 2 24" x 15.5"
SIDES 2 15.5" x 10"
JL Audio 10W1 - 1.55 cubic ft
Plan #2 - Vented Subwoofer Enclosure
WinISD recommends a 3.2 cubic foot box with a 24 Hz tuning frequency for our vented enclosure. Using a four inch port we'll need a vent that is fifteen inches long. We must take this volume into account. The volume of a cylinder is pi*r2*h, or (3.14)*(2)2*15 = 188 cubic inches. Divide this by 1,728 to get cubic feet and we add 0.11 cubic feet to the enclosure.
We'll achieve this by using 3/4 " MDF for the enclosure with external dimensions of 19.5" x 30" x 12.5". This will be a simple rectangular box. Modeling the enclosure we see that it has a 87 dB sensitivity and a -3dB (half power) frequency of 24 Hz (the tuning frequency). This box should give incredible amounts of output when it is combined with the 12dB/octave boost provided by most automobiles. This is to be expected with a box this large. In practice we would probably make the enclosure half this size, or similar to the size of the sealed enclosure.
JL Audio 10W1
SPL (1W/1m) - 87 dB
-3dB @ 24 Hz
Here is the layout of our subwoofer enclosure. We will need to cut the following pieces:
SIDE QUANTITY DIMENSION
TOP/BOTTOM 2 30.5" x 12.5"
FRONT/BACK 2 30.5" x 19.5"
SIDES 2 19.5" x 12.5"
JL Audio 10W1 - 3.3 cubic ft