Fixed installation audio, from a pair of background music speakers in a cafe to networked multi-zone systems across hospitality, retail, education and houses of worship. The range covers 100V line and low impedance loudspeakers in ceiling, pendant and surface-mount formats, install subwoofers, zone amplifiers and commercial signal processing, with Biamp Apart, Optimal Audio, Martin Audio, NEXO, BSS and Allen & Heath all well represented.

The 100V line question shapes everything else: transformer-based 100V systems run long cable distances to many speakers on a single amplifier channel, which is why most commercial ceilings use them, while low impedance suits shorter runs where fidelity and output take priority. Many speaker lines offer both versions, with a T or TX suffix marking the transformer variant, as on the Biamp MASK6CT and Optimal Audio’s Cuboid TX models, and IP-rated units such as the MASK6CT at IP64 handle outdoor and damp locations. Zoning is the other axis: the amplifiers and wall controllers in the install sub-categories decide how staff actually operate the system day to day. Spec coverage first, then amplification, then the control surface.

The sub-categories split speakers, subwoofers, amplifiers and accessories, and trade accounts suit integrators specifying across multiple sites.