IFBT4-VHF whilst the addition of a

whilst the addition of a low frequency extension

as the shelving ‘knee' is changed from 12kHz to 8kHz

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This allows engineers the option of owning the 312A as a pre-amp geared toward higher gain and the 312B for toward lower gain

This high damping factor also keeps the frequency response absolutely flat while driving speakers with large frequency-dependent impedance variations

IFBT4-VHF whilst the addition of aIn other cases, the IFB system is used by directors and other management to monitor program audio during a production. The IFBR1a VHF receiver provides simplicity and flexibility in a package that is intuitive for untrained users to operate. The default frequency of the receiver is set by two rotary switches on the side panel. Up to five additional frequencies can also be programmed into the receiver memory using the scan mode. If more than one