The Bose Professional AMU105B is the most compact loudspeaker in the ArenaMatch Utility series, designed for high-performance indoor and outdoor installations. Equipped with a 5.25-inch woofer and a 1-inch high-frequency compression driver, it provides clear, reliable sound reinforcement in small to mid-size applications such as under-balcony, zone-fill, or distributed systems. Its IP55-rated enclosure ensures durability in challenging weather conditions, while the black finish provides a discreet, professional appearance.
Key Features
- 5.25″ (133 mm) woofer and 1″ compression driver
- Constant-directivity high-frequency horn with 100° × 100° coverage
- Compact design for short-throw and fill applications
- IP55 weather-resistant enclosure for outdoor installation
- Frequency response: 90 Hz – 16 kHz (-10 dB)
- Power handling: 125 W continuous / 500 W peak
- Transformer taps for 70/100V distributed audio systems
- Rugged Baltic birch plywood cabinet with weather-resistant black finish
- Compatible with Bose mounting accessories (U-brackets, yokes, etc.)
Specifications
- Frequency Range (-10 dB): 90 Hz – 16 kHz
- Coverage Pattern: 100° horizontal × 100° vertical
- Maximum SPL (Continuous): ~111 dB
- Nominal Impedance: 8 ohms
- Inputs/Outputs: NL4 and barrier strip connectors
- Color: Black


















