® JBL BALBOATM BALBOA SUB10 (120V) OWNER'S GUIDE READ FIRST! Important Safety Precautions! 13. Unplug this apparatus during lightning storms or when unused for long periods of time. 14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped. 15. Do not use attachments not recommended by the product manufacturer, as they may cause hazards. 16. This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. For products intended to operate from battery power or other sources, refer to the operating instructions. 17. If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/ NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure A. 18. An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits, as contact with them might be fatal. 19. Do not overload wall outlets, extension cords, or integral convenience receptacles, as this can result in a risk of fire or electric shock. 20. Never push objects of any kind into this product through openings, as they may touch dangerous voltage points or short-out parts, which could result in a fire or electric shock. Never spill liquid of any kind on the product. 21. The apparatus shall not be exposed to dripping or splashing, and no objects filled with liquids, such as vases, shall be placed on the apparatus. 22. Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. 23. When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or that have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock or other hazards. 24. Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. 25. The product should be mounted to a wall or ceiling only as recommended by the manufacturer. 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including amplifiers) that produce heat. 9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. 10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus. 11. Only use attachments/accessories specified by the manufacturer. 12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over. Figure A. Example of Antenna Grounding as per National Electrical Code ANSI/NFPA 70 2 INTRODUCTION JBL BalboaTM SUB10 Powered Subwoofer For more than 60 years, JBL® has been providing audio equipment to concert halls, recording studios and movie theaters around the world, and has become the hands-down choice of leading recording artists and sound engineers. With the JBL Balboa Series, innovative technologies such as titanium-laminate-dome tweeters, EOS waveguides and highperformance transducers are available to you. Enjoy! Unpacking the Subwoofer If you suspect damage from transit, report it immediately to your dealer. Keep the shipping carton and packing materials for future use. with its satellite speakers. Setting the volume of the subwoofer in relation to the left and right speakers is also of critical importance because it is essential that the subwoofer integrate smoothly with the entire system. Setting the subwoofer's volume level too high will result in an overpowering, boomy bass. Settingthe volume level too low will negate the benefits of the subwoofer. Here are several additional facts on installation that may prove useful. It is generally believed by most audio authorities that low frequencies (below 125Hz) are nondirectional and, therefore, placement of a subwoofer within any listening room is not critical. While in theory it is true that the larger wavelengths of extremely low frequencies are basically nondirectional, the fact is that, when installing a subwoofer within the limited confines of a room, reflections, standing waves and absorptions generated within the room will strongly influence the performance of any subwoofer system. As a result, specific location of the subwoofer becomes important, and we strongly recommend that you experiment with placement before choosing a final location. Placement will depend upon your room and the amount and quality of bass required (for example, whether or not your room permits placement of the subwoofer near either satellite). Be sure to leave a minimum of six inches between the wall and the port on the subwoofer. PLACEMENT Since the installation of a subwoofer can be somewhat more complicated than installing full-range speakers, it is essential that you read this section very carefully prior to connecting the subwoofer to your system. Should you have questions relating to your installation, it is advisable to contact either your dealer or distributor, or visit www.jbl.com, for advice. The performance of the subwoofer is directly related to its placement in the listening room and how you align the subwoofer SUB RIGHTCHANNEL SPEAKER PRIMARY LISTENING AREA Figure 1. This example shows the subwoofer positioned in the corner to maximize bass output. 3 CONTROLS AND CONNECTIONS Rear Panel A Harman International® Company ¡ TM 0 Subwoofer-Level Control 1 Crossover Adjustment 2 Phase Switch 3 LFE Input 4 Line-Level Inputs 5 Power Indicator LED 6 Power Switch £ ¢ § ¶ FUSE T 2.5A L 250V TYPE AC~ 120V 60HZ 200 Watts 4 SUBWOOFER CONNECTIONS Choose the Subwoofer Connection That Is Most Suitable for Your Receiver/Processor If you have a Dolby® Digital or DTS® receiver/processor with a low-frequency-effects (LFE) or subwoofer output: If your receiver/processor does not contain a Dolby Digital or DTS processor but has a subwoofer output: SUBWOOFER OR LFE OUTPUT L R NOTE: Some receivers have one subwoofer output. In that case, it is recommended that you use a Y connector (not included) to maximize performance. 5 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 ¶ 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 ¶ in the ON position, the LED § on the rear panel will remain lit 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) The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal 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 ¶ can be left on. You may turn off the Power Switch ¶ for extended periods of nonoperation, e.g., when you are away on vacation. Adjust Level Turn your Subwoofer-Level Control ¡ up to the "5" position (halfway). 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 ¶ been pressed to the "On" position? Once you have confirmed that the subwoofer is active, proceed by playing 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 system 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 piston-like 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 Adjustments The Crossover Adjustment Control TM 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. 6 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 loud-speaker. 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 distributor or www.jbl.com for a service center near you. SPECIFICATIONS Balboa SUB10 Frequency Response: Amplifier Output: (20Hz ­ 150Hz, with no more than 0.1% THD) Peak Dynamic Power*: Crossover Frequency: Driver: Dimensions (H x W x D): Weight: 30Hz ­ 150Hz (­6dB) 100 watts RMS 225 watts 50Hz ­ 150Hz, 24dB/octave, continuously variable 10" (250mm) 20-1/4" x 14-1/16" x 15-13/16" (514mm x 357mm x 402mm) 35 lb (16kg) All features and specifications are subject to change without notice. All dimensions include grilles and feet. JBL and Harman International are registered trademarks, and Balboa Series and Pro Sound Comes Home are trademarks, of Har ...