Form an active integrated sound reinforcement system with other active subwoofers.

Compose a fixed installation audio system for both music and speech reinforcement when paired with other speakers.

HD Series is a professional line array column speaker system, currently comprising four models: HD1, HD2, HD4, and HD9. Crafted from aluminum alloy profiles, this series boasts a unified aesthetic and material composition, with the primary differences among models lying in the number of loudspeaker units and the subsequent variations in height. The numerical designation in each model's name signifies the quantity of loudspeaker units employed, all of which feature 4.5-inch full-range loudspeaker drivers. The varying heights of the models influence both the output sound pressure level and the effective lower limit of controlled low frequencies in the line array, with larger conference halls ideally suited for longer line arrays.

Renowned for its classic line array technology, the HD Series is often referred to as a sound column due to its distinctive form factor. By arranging multiple small drivers in a straight line, it creates a highly directional sound radiation pattern.

Here are the advantages of the HD Series' adoption of line array technology: