PreSonus AIR15s Active 15-inch Sound-Reinforcement Subwoofer

The PreSonus AIR15s is an active sound-reinforcement subwoofer designed to anchor both mobile DJ rigs and permanent installations with deep, articulate bass. Its 15-inch woofer with a 3-inch voice coil is driven by a 1,200W Class D amplifier, producing up to 132 dB of maximum SPL across a 35 Hz to 160 Hz frequency range. A variable low-pass filter on the rear panel lets operators set the upper crossover point to blend seamlessly with whichever top cabinets are in use, giving sound engineers precise tonal control without requiring an external processor.

Connectivity is straightforward: two XLR/¼-inch combo inputs with direct outputs allow daisy-chaining to additional subs or tops, while a 1/8-inch auxiliary input accommodates smartphones and tablets for quick playback. Where the AIR15s particularly stands out is in its built-in ground-stacked and end-fire presets, which let users configure multiple units into a cardioid subwoofer array with minimal effort. This reduces unwanted low-frequency energy on stage and focuses bass toward the audience—a feature typically found on higher-priced touring-grade systems.