Master Audio NB600TB Black 6.5′ PA speakers 8Ohms/100V

The Master Audio NB600TB is a pair of black, 2-way waterproof (IP65) wall-mount speakers featuring a 6.5-inch woofer. They are designed for both low-impedance (8 Ohm) and 70/100V high-voltage public address (PA) systems.
Technical Specifications
According to official documentation from Master Audio, the speakers feature:
Woofer Size: 165 mm (6.5 inches).
Power Handling: 100W maximum power; 32W RMS at 8 Ohms.
100V Selectable Power: Built-in transformer with a power switch for 32W, 16W, 8W, or 4W taps.
Frequency Range: 50 Hz – 20 kHz.
Sensitivity (SPL): 90 dB (@1W/1m).
Protection Rating: IP65, making them suitable for outdoor use in gardens, terraces, or pools.
Dimensions: 302 x 196 x 193 mm.
Mounting: Includes a swivel bracket allowing 180° horizontal and 60° vertical adjustment.