OPERATION

Power On

Plug your subwoofer’s AC cord into a wall outlet. Do not use the outlets on the back of the receiver.

Initially set the Subwoofer-Level Control ¢ to the “min” position. Turn on your sub by pressing the Power Switch ª on the rear panel.

Turn on your entire audio system and start a CD or movie soundtrack at a moderate level.

Auto On/Standby

With the Power Switch ª in the “on” position, the Power Indicator LED ∞ will remain backlit in red or green to indicate the On/Standby mode of the subwoofer.

RED = STANDBY (No signal detected, Amp Off) GREEN = ON (Signal detected, Amp On)

When the Auto Switch § is in the “auto” position, the subwoofer will auto- matically enter the Standby mode after approximately 10 minutes when no sig- nal is detected from your system. The subwoofer will then power ON instantly when a signal is detected. During periods of normal use, the Power Switch ª may be left on. You may turn off the Power Switch ª for extended periods of non-operation, e.g., when you are away on vacation. If the Auto Switch § is in the “on” position, the subwoofer will remain on.

Adjust Gain

Turn your Subwoofer-Level Control ¢ up to the halfway position. If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected to a “live” receptacle? Has the Power Switch ª been pressed to the “on” posi- tion? Once you have confirmed that the subwoofer is active, proceed by play- ing a CD, record or cassette. Use a selection that has ample bass information.

Set the overall volume control of the preamplifier or stereo to a comfortable level. Adjust the Subwoofer-Level Control ¢ until you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to the belief that a subwoofer is there to produce lots of bass. This is not entirely true. A subwoofer is there to enhance bass, extending the response of the entire sys- tem so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive.

Phase Control

The Phase Switch determines whether the subwoofer speaker’s pistonlike action moves in and out with the main speakers, 0˚, or opposite the main speakers, 180˚. Proper phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the Phase Switch to maximize bass output at the listening position.

Crossover Adjustment

The Crossover Adjustment Control • determines the highest frequency at which the subwoofer reproduces sounds. If your main speakers can comfortably reproduce some low-frequency sounds, set this control to a lower frequency setting, between 50Hz and 100Hz. This will concentrate the subwoofer’s efforts on the ultradeep bass sounds required by today’s films and music.

If you are using smaller bookshelf speakers that do not extend to the lower bass frequencies, set the Crossover Adjustment Control • to a higher setting, between 120Hz and 150Hz.

NOTE: This control will have no effect if the LFE/Input ™ is used. If you have a Dolby Digital or DTS processor/receiver, the low-pass frequency is set by the processor/receiver. Consult your owner’s manual to learn how to view or change this setting.

MAINTENANCE AND SERVICE

The enclosure may be cleaned using a soft cloth to remove fingerprints or to wipe off dust.

The grille may be gently vacuumed. Stains may be removed with an aerosol cleaner, following its instructions. Do not use any solvents on the grille.

All wiring connections should be inspected and cleaned or remade periodically. The frequency of maintenance depends on the metals involved in the connections, atmospheric conditions and other factors, but once per year is the minimum.

If a problem occurs, make sure that all connections are properly made and clean. If a problem exists in one loudspeaker, reverse the connection wires to the left and right system. If the problem remains in the same speaker, then the fault is with the loudspeaker. If the problem appears in the opposite speaker, the cause is in another component or cable. In the event that your subwoofer ever needs service, contact your local JBL dealer or www.jbl.com for a serv- ice center near you.

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JBL SUB10 manual Operation, Maintenance and Service
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SUB10 specifications

The JBL SUB10 is a compact yet powerful subwoofer that is designed to enhance any audio experience. With its sleek design and advanced technology, it perfectly complements home theater systems, music setups, or even desktop audio systems, delivering deep, rumbling bass that can bring movies, music, and gaming to life.

One of the standout features of the JBL SUB10 is its 10-inch polymer-coated woofer. This driver is engineered to provide a rich and dynamic bass response, accurately reproducing low frequencies without distortion. The woofer's design contributes to a quick and responsive performance, ensuring that it can handle a variety of soundtracks and dynamic audio content with ease.

Designed for versatility, the SUB10 includes multiple inputs, including line-level and speaker-level connections. This allows users to integrate the subwoofer seamlessly into various audio setups, regardless of the existing equipment. The ability to connect with both home theater receivers and stereo systems ensures that it's a worthy addition to any audio environment.

JBL has also incorporated a built-in high-efficiency class D amplifier, which not only amplifies the sound but does so while maintaining clarity and preserving energy. This powerful amplification allows for a robust bass performance that complements both quiet and loud listening environments without requiring extensive power consumption.

Another significant feature of the JBL SUB10 is its phase control and adjustable low-pass filter. These controls enable users to fine-tune the subwoofer's output to match their room's acoustics and their personal listening preferences. This level of customization ensures that the bass integrates seamlessly with the speaker setup, providing a cohesive audio experience.

The cabinet design of the SUB10 is also noteworthy. Constructed from MDF (medium-density fiberboard), it minimizes vibrations and resonance that can muddy the sound. The sleek finish and compact size allow the subwoofer to blend in with any decor while providing powerful audio performance.

In summary, the JBL SUB10 is a remarkable subwoofer that delivers powerful, deep bass, thanks to its advanced features and technologies, including a 10-inch woofer, high-efficiency amplifier, and customizable controls. Whether for home theater or music, it’s an essential component for any audio enthusiast looking to enhance their listening experience.
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