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B & C DH450H 40W 8 Ohm 1" Bolt On Compression Driver
HLX Series - The Helical Approach
The B&C DH450H combines compact size with outstanding performance. Featuring B&C’s patented HLX™ helical phase plug, this innovative design equalises acoustic path lengths by twisting the central channel - like a DNA helix - for improved efficiency, lower distortion, and a smoother high-frequency response. The added heatsink (“H” version) boosts thermal handling and reliability, making it ideal for high-power, space-saving PA systems
The B&C DH450H combines compact size with outstanding performance. Featuring B&C’s patented HLX™ helical phase plug, this innovative design equalises acoustic path lengths by twisting the central channel - like a DNA helix - for improved efficiency, lower distortion, and a smoother high-frequency response. The added heatsink (“H” version) boosts thermal handling and reliability, making it ideal for high-power, space-saving PA systems
- Patented HLX helical phase plug for efficiency and reduced distortion
- Compact, lightweight neodymium motor (69 mm diameter)
- 44 mm aluminium voice coil with high-temperature polymer diaphragm
- Low crossover point around 1 kHz for smooth mid-to-HF handover
- Integrated heatsink for better cooling and reliability
- High sensitivity rated at 109 dB up to 18 kHz
Throat Diameter: 25 mm (1 in)
Voice Coil Diameter: 44 mm (1.7 in) aluminium
Nominal Impedance: 8 Ω
Sensitivity: 109 dB (2.83 V/1 m)
Frequency Range: 1 kHz – 18 kHz
Recommended Crossover: 1 kHz or higher (12 dB/oct)
Flux Density: 1.9 T
Magnet Material: Neodymium
Diaphragm Material: High-temperature polymer
Overall Diameter: 69 mm
Depth (H Version): 65 mm
Weight: ≈ 0.6 kg
Voice Coil Diameter: 44 mm (1.7 in) aluminium
Nominal Impedance: 8 Ω
Sensitivity: 109 dB (2.83 V/1 m)
Frequency Range: 1 kHz – 18 kHz
Recommended Crossover: 1 kHz or higher (12 dB/oct)
Flux Density: 1.9 T
Magnet Material: Neodymium
Diaphragm Material: High-temperature polymer
Overall Diameter: 69 mm
Depth (H Version): 65 mm
Weight: ≈ 0.6 kg
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