VTX A12 | User Manual177.2 - CROWN I-TECH 12000HDWhen using Crown Audio I-Tech 12000HD amplifiers, up to 3 VTX A12 loudspeakers can be powered per pair of am-plifiers. One Crown I-Tech 12000HD is used for powering the low-frequency section and another for the mid- and high-frequency sections. Based on the A12 component resource requirements, this allows for optimum power-to-transducerratio without compromising the system’s maximum SPL capabilities. Circuits of 2 cabinets can be used when highercircuiting resolution is necessary.Amplifier 1 - ChannelsChannel 1 A12 MFChannel 2 A12 HFCrown I-Tech 12000HD JBL VTX A12Amplifier 2 - ChannelsChannel 1 A12 LFChannel 2 A12 LF7.3 - CROWN AUDIO V-RACKVTX A12 systems are compatible with the Crown Audio V-Rack 12000HD and Crown Audio V-Rack 4x3500HD touringracks. The number of supported cabinets per amplifier and wiring options remain the same as the Crown Audio I-Techexamples illustrated in this document. For more information on the Crown Audio V-Rack products, refer to the V-RackUser Manuals and documentation.CAUTION: Make sure the total number of VTX A12 enclosures per circuit / amplifier does not exceed themaximum number recommended.TIP: Other channel assignments can be implemented when using the 2-channel Crown Audio I-Tech HD ampli-fiers. Use JBL’s HiQNet ® Performance ManagerTM control software to assign speaker presets.