JBL P1200, P1000, P800, P1500 User Manual

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JBL P1200, P1000, P800, P1500 User Manual

GRAND TOURING SERIES

Automotive

Subwoofers

P-800, P-1000, P-1200, P-1500 Owner’s Manual

GENUINE JBL

Thank you for choosing this

02 JBL Power Series subwoofer. The Power Series of automotive subwoofers is designed to be used in modern car audio systems to produce extended, powerful bass in a limited amount of space. Power Series subwoofers are designed to suit a broad range of applications and can be used in a wide variety of enclosure types. In order to maximize the performance potential of these subwoofers, it is recommended that installation be left to a qualified professional. If you feel you have the ability to properly build an enclosure and install the subwoofer yourself, the information in this manual will help you get it right.

Keep your sales receipt with this manual in a safe place so both are available for future reference.

JBL Power Series

Features

The JBL Power Series consists of serious subwoofers that are unlike any others in their class. They will deliver unparalleled performance in a wide variety of enclosures, giving creative installers unprecedented flexibility in system design.

The JBL Power Series incorporates:

Injection-molded Titanium composite cones for optimum combination of stiffness and low mass

Butyl rubber surround for lower harmonic distortion and precise voice-coil travel

Dual-stacked magnets and

X-Linear™ motor assembly for controlled, long-throw cone excursion

Deepbeat™ anti-resonance chassis coating on the basket to prevent audible ringing

Thermosink™ motor assembly coating to dissipate heat and increase power handling

Unique 5-ohm nominal impedance for extreme flexibility in installations with multiple subwoofers

The JBL Power Series woofers are designed to maximize the sonic potential of any system. When installed in a proper enclosure they offer smooth frequency response, excellent transient response, high-output efficiency, and high-power handling capa-bil- ity. The result is powerful, dynamic and accurate sound reproduction that could only come from JBL.

A Few Words

About Enclosures

The enclosure or box that you choose for your Power Series woofer will define the sound that will ultimately come out of it. The size of the box and tuning frequency of port tubes in vented enclosures dictate the lowfrequency performance and output capability of your system. The flexibility designed into the Power Series subwoofers lets them make tons of bass in small sealed, vented and bandpass enclosures. They will also work well in infinite baffle applications where there is no space or budget to build a box. Be aware that infinite baffle or ”free air“ mounting will reduce the power handling

and the low-frequency response of a subwoofer. Finally, although information is available for Bandpass enclosures from your JBL Dealer, any variations from the recommended dimensions should be made using dedicated enclosure-design software such as JBL Speakershop™.

If this type of software is not available, assistance is available through JBL‘s Web site at www.jbl.com or from your authorized JBL dealer.

Your Car And

The BASS Made In It

Depending on the size of the vehicle, bass frequencies below 50Hz or 80Hz are actually boosted by nearly 12dB per octave as the frequency decreases. If you wanted to purchase that kind of power, you would need an amplifier that was eight times more powerful than the one you have. You can either reduce bass level to compensate for this, or simply sit back and enjoy the “free” bass.

Enclosure Calculation and

Building

Recommended box designs are available from your JBL

Dealer, or at www.jbl.com on the Internet. You may choose cabinet dimensions to fit your car, but the internal volume must not be changed, since changes in internal volume will change the tuning frequency of the enclosure. Please contact your authorized JBL dealer if you cannot do

the necessary calculations yourself. The JBL Speakershop™ dedicated enclosure-design software program may also be helpful for experienced car-audio enthusiasts.

Sealed enclosures exert the most

control over the motion of a sub- 03 woofer because the air acts like a

spring against the motion of the woofer cone. Larger boxes allow for more excursion, thus more sound output for the amount of power used. When placed in a sealed box larger than the rated compliance (Vas) of the subwoofer, it will react as if it were in an infinite baffle installation.

Vented and bandpass enclosures have the lowest amount of excursion for the amount of sound output. This is a result of port tuning reinforcing the sound output.

Vented boxes will not provide adequate woofer control when driven below the port tuning range, meaning proper design is important. A fourth-order bandpass box will have the lowest

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