A single 18 inch ultra-low frequency speaker specially designed to be used in conjunction with the β -808HP linear array audio system. The box adopts a direct beam design, which converts the sound energy behind the speaker paper tray inside the speaker into phase and superimposes it with the energy in front, improving the efficiency of the speaker. The conversion efficiency is relatively high, and the lower limit of low frequency is relatively low. The system is equipped with a high-power 18 inch 100 core ultra-low frequency speaker unit, which comes with an active DSP amplifier module that not only provides strong power output guarantee, but also provides fine DSP digital processing services based on the characteristics of the speaker and the on-site environment. The bass is more abundant, thick and powerful. When combined with β -808HP, it can form a high sound pressure level, smooth and powerful sound, and adjustable full frequency response range.
Frequency response: 35Hz-300Hz
Sensitivity（ 1W@1m )：100dB
Nominal impedance: 8 Ω
Rated power: 800 W AES, 3200W peak
Bass Unit: 1 × 18 "(460mm)/4" voice coil
Maximum sound pressure level: 128dB continuous, 134dB peak
Connection socket: 2 x Speakon NL4
Net weight: 45kg
Dimensions (W × D × H): 725mm × 600mm × 503mm
β-818SP
