The Adastra AD-BP4V passive wall-mounted speaker features a low-frequency driver with a waterproof polypropylene cone and a balanced-dome tweeter. The rotary selector allows operation on a 100 V line or at 8 ohms, with 20 W, 10 W, 5 W and 2.5 W power options for the 100 V line. It is suitable for indoor use.

The enclosure is made of ABS, and the grille is metal. It includes an adjustable wall-mounting bracket and alternative mounting points with M6 threads. The 1 m speaker cable is permanently attached.

• Operating type: Passive
• Mounting: Wall-mounted
• Quantity: 1
• Frequency distribution: 2-way
• RMS power: 35 W
• Maximum power at 8 ohms: 70 W
• Power options at 100 V: 20 W, 10 W, 5 W, 2.5 W
• Impedance: 8 ohms
• Sensitivity: 88 dB
• Protection rating: IP54
• Low-frequency driver: 100 mm polypropylene cone
• Tweeter: 25 mm balanced dome
• Frequency response: 110 Hz–20 kHz
• Operating temperature range: -5 °C to +40 °C
• Enclosure: ABS
• Grille: Metal
• Mounting bracket: Adjustable
• Mounting points: M6 threaded
• Cable length: 1 m
• Colour: White
• Dimensions: 150 x 195 x 150 mm
• Weight: 1.63 kg