User manual JBL BASS15

[. . . ] Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles and the point where they exit from the apparatus. 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. Unplug this apparatus during lightning storms or when unused for long periods of time. [. . . ] The microphones should be placed in the appropriate seating locations. IR Sensor The IR sensor allows use of the included remote control to operate the unit from across the room. The IR sensor must not be blocked, in order for it to operate properly. 5 18 15 12 16 14 13 11 17 11. Main Power Switch Place this switch in the On position at all times during normal use. Power Trigger Input Jack When using the JBL BassQ processor in a JBL Performance Series system with the AV1 digital surround processor, you will need to use the trigger cable set included with the AV1. Connect the DIN end of the cable to the Trigger Output DIN jack on the rear panel of the AV1, and connect the 1/8" (3. 5mm) plug to the Trigger Input Jack B on the rear panel of the JBL BassQ unit. If the JBL BassQ unit is used with another component (such as the AV2) that uses a trigger for automatic turnon and turn-off, make sure the other component's output is between 3 and 24 volts DC. Connect the trigger output jack on the other component to the 1/8" (3. 5mm) Trigger Input Jack B on the JBL BassQ unit using the cable included with the JBL BassQ unit. Whenever a power-on trigger is used to operate the JBL BassQ processor, make sure that the JBL BassQ Main Power Switch A is in the On position. If the Trigger source (AV1 or another source unit featuring power-on trigger) is on, the JBL BassQ LED Standby Indicator TM will glow blue. If the Trigger source is off or in Standby, the JBL BassQ unit will also go into Standby and its LED Standby Indicator TM will turn red. When battery power is low, the remote control enters a low-voltage condition, preventing it from operating the JBL BassQ unit. Normal operation will resume when new batteries are installed. To replace the remote control batteries: 1. The tray is held in place by a pressure-fit lock and requires a small amount of force to remove. Slide the battery tray back into the remote until the tray locks into place. CAUTION: DANGER OF EXPLOSION IF BATTERY IS INCORRECTLY REPLACED. If it will be stacked with other components, use the feet that came attached to the unit. This will ensure that there is sufficient space underneath so that heat can be dissipated effectively. To install these rack ears, remove the two machine screws on each of the two side panels (see drawing), hold each rack ear in place, and attach it to the unit using the same two screws. If it is installed inside a cabinet that is enclosed on all sides, the front of the cabinet must remain open to allow sufficient flow-through ventilation to avoid overheating. With the help of another person to guide the unit into the rack, gently slide the JBL BassQ unit into place. Align the rack mounting holes to the rack ears of the equipment rack. 4. Starting with the bottom two screw holes and using two of the rack screws and plastic washers (if supplied with your rack), secure the JBL BassQ unit into the rack. [. . . ] Step Four: Level Calibration of Main Speakers Level adjustments are best done using an SPL meter that is set to C-weighting and Slow response. Set the level control on your subwoofer to 0dB or a nominal reference level. Turn on the internal noise test from the AV1 (or other processor) and, using the level control in your preamp or processor, set all speaker levels to a 75dB reference level. Step Five: Distance Calibration Due to the different distances between the listening position for the subwoofer, the front channel speakers and the surround speakers, the amount of time it takes for sound to reach your ears from front speakers versus surround speakers differs. [. . . ]