12XT12XT12XT12XT COAXIAL ENCLOSURECOAXIAL ENCLOSURECOAXIAL ENCLOSURECOAXIAL ENCLOSUREuser manualuser manualuser manualuser manualVERSION 1.312XT_UM_ML_1-3 w w w . l - a c o u s t i c s . c o m 14141414 en7.2.1.2 Connecting the PASSIVE 12XT to the LA4Each PASSIVE 12XT enclosure must be connected to an LA4 output channel ranging from channel 1 through 4.Therefore a single LA4 amplified controller can drive up to four PASSIVE 12XT enclosures (see Figure 6).Note: The system resources are optimized for four PASSIVE 12XT per LA4.Figure 6: Four passive 12XT enclosures connected to an LA4 controller7.2.1.3 [12XTP_FR], [12XTP_FI], and [12XTP_MO] presetsThe [12XTP_FR] ‘‘FRONT’’ preset features LF and HF shelving EQ for standalone FOH applications (withoutsubwoofers).The [12XTP_FI] ‘‘FILL’’ preset results in a ‘‘flat’’ contour in free field conditions for use in speech reinforcement, classicalmusic, or close proximity fill applications.The [12XTP_MO] ‘‘MONITOR’’ preset results in a ‘‘flat’’ contour in half-space loading conditions for floor monitoring,wall, or ceiling-mounted applications.Activate the LOAD PRESET menu from the LA4 amplified controller front panel and then select the desired preset.Refer to the ‘‘LA4’’ user manual for additional instructions. The preset is also accessible using the LA NETWORKMANAGER software (refer to the ‘‘LA NETWORK MANAGER’’ user manual). The accessible parameters in ‘‘FULLRANGE’’ mode for the PASSIVE 12XT are shown in the following chart:Table 2: Accessible parameters in ‘‘FULL RANGE’’ mode for the PASSIVE 12XTAccessible (O) and blocked (X) parametersLA4 Inputs/Outputs Elements to connect Presetassignments* Mute Gain Delay PolarityIN A Input signal A IN_A X O O OIN B Input signal B IN_B X O O OOUT 1 PASSIVE 12XT PA_A O O O OOUT 2 PASSIVE 12XT PA_A O O O OOUT 3 PASSIVE 12XT PA_B O O O OOUT 4 PASSIVE 12XT PA_B O O O O* IN: input signal. A, B: channel A, B. PA: passive enclosure.IN AIN BNote: This drawing is only a cabling scheme and does not represent a valid configuration.OUT 2 (IN A)OUT 1 (IN A)OUT 3 (IN B)OUT 4 (IN B)