Professional dualchannel passive audio isolator designed for secure signal transfer and reliable noise rejection in live and studio setups. Key benefits Eliminates ground loop hum and AC noise caused by grounding differences between connected systems. Protects input circuitry by isolating large potential differences between devices. Ensures secure transmission of audio signals without adding active circuitry or requiring power. Main features Dualchannel passive design using Permalloycore audio isolation transformers for quality isolation and consistent signal integrity. XLR inputs and XLR outputs on each channel for standard professional connectivity. Accepts unbalanced inputs and provides balanced outputs; also passes balanced input to balanced output. Individual ground lift switch per channel to select common ground or isolated ground as needed. Passive operation: no power supply required. Compatibility and connectors Standard XLR I O format for compatibility with cameras, mixers, laptops with audio interfaces, and electronic instruments with linelevel outputs. Designed to be inserted between any two audio devices where isolation or ground separation is required. Typical applications Connecting a camera to a mixing console to remove hum and noise from camera chassis ground differences. Linking simultaneous interpretation equipment or other auxiliary audio gear to a mixer to prevent interference on program feeds. Connecting a laptop or electronic instrument to a mixer for live performance or recording, eliminating ground loop noise and protecting mixer inputs. Performance notes Permalloy cores provide stable magnetic properties and effective galvanic isolation without active electronics. Passive topology means low maintenance and no power dependency while still addressing ground loop and commonmode noise issues. Each channel can be configured independently using the ground lift switch to match system grounding requirements. This isolator is appropriate for professional audio setups where reliable isolation, reduced noise, and protection of input circuits are required.