This is a compact transformer in an XLR male/female tube for quick fix line isolation. The shield is lifted from input to output.
The addition of an electrostatic shield adds further protection from some high frequency impulses and noise that might otherwise pass through the transformer via the inter-winding capacitance. The AAIT-600 optional input transformer is used to isolate input 1 of all the AA Series mixer amplifier from possible ground loops when connecting to various music or paging sources. Dimensions: 1-1/4" H x 5/8" W x 3/4" D.
A shielded isolation transformer provides excellent protection from all types of N-G disturbances (impulses, RMS voltage, and high frequency noise). It is critical that the transformer be grounded properly or common mode protection will be ineffective.

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Every installation technician has faced it or soon will the dreaded hum bars on the screen, a telltale sign of a ground loop. Ground loops are caused by voltage potential differences at the ground point on your equipment, voltages in the range of micro-volts up to mili-volts or higher.Ground Loop Isolation Transformers from Impact Acoustics connect easily into your A/V system and break the ground path through cables between components. Start at the component last installed before the ground loop was discovered. Connect the isolation transformer at different ends of the A/V cable until the ground loop is gone. Cables to Go offers ground loop isolation transformers for composite video, S-video and component video applications.