Box guidelines, Jsp1 044 series box calculations, Simple math – Audiovox JSP1044 User Manual

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Math Conversions

Converting From:

Multiply By:

To Find:

Inches

0.0254

Meters

Square Inches

0.007

Square Feet

Cubic Inches

0.00058

Cubic Feet

Square Feet

144

Square Inches

Cubic Feet

1728

Cubic Inches

Cubic Feet

28.3

Liters

Meters

39.37

Inches

Liters

0.035

Cubic Feet

Calculations

Shape

Area

Volume:

Circle (opening)

A = 0.79 x D x D

N/A

Cylinder (port)

N/A

V = 0.79 x D x D x H

Rectangle

A = H x W

N/A

Rectangular Box

N/A

V = H x W X D

Triangle

A = 0.5 x H x W

N/A

Triangular Box

N/A

V = 0.5 x H x W x D

JSP1

044 Series

Box Calculations

During construction, temporarily assemble the
wood making sure all pieces line up. Assemble
the box before cutting the holes for the
subwoofers. After the box is assembled, connect
an amplifier to the subwoofer, and listen for
whistling noises and buzzes. If the box will be

mounted in a vehicle, it should be fastened
securely. "L" shaped brackets work adequately.

Simple Math

To build a box, some math calculations must be
made using the formulas below.

Subwoofer box calculations will need math conversions to make
the numbers easier to work with. Use the conversions listed.

Box Guidelines

Jensen recommends that you have your
subwoofers professionally installed. If choosing
to do your own installation, please note the
following:

• Make sure all moving parts and factory

electrical wires are cleared.

• Leave slack in the wire to prevent pulling or

stretching.

• Tie down wires to prevent them from getting

caught or shorted.

• Do not mount subwoofers where they might be

subjected to moisture.

• Correct subwoofer polarity must be used. The

polarity positive side is marked by a (+) sign or
red dot. Subwoofers out-of-phase will have
little bass output.

• Speaker frames will be twisted by installation

on uneven surfaces. This occurs when the
surface is carpeted/padded and screws are
over-tightened.

• If using more than one subwoofers, be sure that

the combined impedance values cannot damage
the amplifier.

• Speaker wire should be isolated from the

vehicleís electrical system to avoid noise being
picked up by the amplifiers.

• Speaker wire should be large enough to carry

the full power of the amplifier. 14 gauge or
larger sizes are adequate.

• Be sure to give your ears a break if you listen

loud. Listening loud for extended periods can
damage your hearing!

TOLL-FREE INSTALLATION ASSISTANCE

The installation and wiring connections for this unit are so simple, we doubt you'll need our help, but, if you
do, we're here to help you. Just call our toll-free telephone assistance line at 1-800-323-4815 during the days
and hours shown (U.S.A. and Canada only)
Hours: 8:30AM - 7:00PM EST Monday - Friday
9:00AM - 5:00PM EST Saturday

D

H

W

H

W

Areas

D

D

D

H

H

W

H

W

Volumes

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