Answer:
The Hitune BHU-75 is compatible with low-impedance PA amplifiers supporting 8-ohm loads and power output between 38 W and 75 W. Direct connection to 70V or 100V constant-voltage line distribution systems requires an external line matching transformer.
The Hitune BHU-75 is a low-impedance horn speaker with an 8-ohm voice coil designed for direct two-wire termination into low-impedance power amplifier channels rated between 38 W and 75 W.
Important installation note: Connecting this 8-ohm driver directly to constant-voltage distributed speaker lines (70V or 100V outputs) without a dedicated step-down line matching transformer will overload the voice coil and risk amplifier shutdown.