The JBL AC18/26 is a compact, high-performance two-way loudspeaker engineered for versatile professional audio applications where space is limited but high-fidelity sound is essential. This model pairs an 8-inch low-frequency driver with a 1-inch exit compression driver, delivering a balanced and articulate full-range output from a surprisingly small enclosure. Its key feature is a rotatable constant-directivity horn with a 120° by 60° dispersion pattern, providing broad horizontal coverage for wide audience areas while maintaining controlled vertical dispersion to minimize ceiling and floor reflections. This design makes the AC18/26 an ideal solution for distributed audio, foreground music, fill coverage, and primary reinforcement in environments such as restaurants, retail stores, conference rooms, and houses of worship where visual footprint and sonic clarity are both critical.

The rotatable horn allows the coverage pattern to be oriented to match the acoustic needs of the space, enabling installers to deploy the loudspeaker in either a horizontal or vertical alignment without compromising its performance characteristics. The horn is designed to provide a smooth transition between the high-frequency and low-frequency elements, ensuring consistent tonal quality and intelligibility across its entire coverage area. Coupled with a high sensitivity rating, this efficient design allows the loudspeaker to produce substantial output with minimal amplifier power, making it a cost-effective and energy-conscious choice for multi-zone systems. Its compact form factor also facilitates discreet mounting in locations where larger cabinets would be obtrusive.

Constructed from durable, moisture-resistant polypropylene, the enclosure is both lightweight and rugged, suitable for a wide range of indoor environments. The design includes integrated rigging points for secure and flexible mounting options, including wall, ceiling, or pendant installation. The integrated passive crossover network is optimized for the specific transducers, ensuring phase coherence and incorporating protective circuitry. With its combination of a wide, rotatable coverage pattern, compact size, and robust construction, the JBL AC18/26 offers a powerful and adaptable audio solution for achieving clear, detailed sound reproduction in space-conscious commercial and institutional settings.