User manual JBL LSR6300

[. . . ] LSR6300 Studio Monitors Owner's Manual Important Safety Instructions 1. Read These Instructions - Before operating your new JBL product, please read safety and operating instructions. Keep These Instructions - For future reference and troubleshooting purposes, retain these instructions. To clean enclosure, turn off speaker and disconnect power cord then clean only with a lint-free cloth moistened with water. [. . . ] Moving the link between the 0 and -1 dB positions will change the high frequency drive level. Please note that the loudspeaker should be disconnected from the amplifier during this procedure for safety of the system. Changing Mid/High Orientation The LSR6332 is normally used in the horizontal position with the mid- and high-frequency elements toward the middle. This provides the lowest elevation, maximizes sight lines and reduces shadowing effects of soffit mount monitors. In situations where vertical orientation is desired, the entire Mid/High sub-baffle can be rotated. There are both Left and Right models of the LSR6332 so that absolute symmetry can be maintained in all orientations. NOTE: The mid and high transducers can be easily damaged by screwdrivers carelessly handled. Even with efficient magnetic structures, there is always a small amount of leakage flux in the neighborhood of the voice coil gap, which will attract hand tools and any nearby iron material. Carefully remove the eight Allen (Hex) socket screws surrounding the Mid/High sub-baffle, and pull the unit out entirely. Again, take note to be VERY careful to guard against transducer damage. 11 LSR6312SP Powered Subwoofer System The LSR6312SP Active Subwoofer consists of a Neodymium Differential Drive NDDTM 12" neodymium woofer integrated with a powerful 260 watt continuous power output amplifier. The active drive circuitry has been developed to maximize the acoustic output power while maintaining overall low distortion and excellent transient performance. The enclosure is manufactured with a molded baffle and rigidly braced MDF enclosure for low resonance and minimal box loss. The Linear Dynamics Aperture (LDA) Port design minimizes port turbulence and eliminates port compression. Active crossover electronics supply 4th-order electroacoustic slopes to the low pass subwoofer transition to reduce the possibility of audible localization of the subwoofer. This allows greater flexibility in placement for optimum operation in a wide variety of rooms. Since low frequency energy supplied by the LSR6312SP is essentially omnidirectional, placement of the unit(s) is more dependent upon room acoustics and interaction than localization issues. The active electronics includes switchable high pass filters for the front satellite speakers. This option is used to filter low frequency information from the front speakers and redirect this information to the subwoofer. This is usually the case when the front speakers cannot reproduce extended low frequency information at the desired sound pressure level, or to optimize the low frequency performance of the system in the room. Alternatively, if the front channels are operated in full range, the bypass function can be enabled allowing the subwoofer to be muted. The bypass function allows the LSR6312SP direct LFE input to remain active. RMC Equalization There are three screwdriver adjustable controls on the rear panel of the LSR6328P indicated RMC. The term RMC stands for Room Mode Correction, which consists of a single section cut-only parametric equalizer that can be adjusted in frequency, width (Q) of cut, and the amount of cut. It is used to reduce the magnitude of any dominant low frequency peak in response due to standing waves at the listening position. [. . . ] JBL amplifiers are warranted for three years from the date of original purchase. Enclosures and all other JBL products are warranted for two years from the date of original purchase. Except as specified below, your JBL Warranty covers all defects in material and workmanship. The following are not covered: Damage caused by accident, misuse, abuse, product modification or neglect; damage occurring during shipment; damage resulting from failure to follow instructions contained in your Instruction Manual; damage resulting from the performance of repairs by someone not authorized by JBL; claims based upon any misrepresentations by the seller; any JBL product on which the serial number has been defaced, modified or removed. [. . . ]