LA3 Single 21-inch Line Array Subwoofer waterproof speaker,

LA3 is a high-performance subwoofer designed to work with the LA12 loudspeaker.
It is widely used in permanent fixed installations and mobile touring applications.
Built in a bass-reflex enclosure, the LA3 is equipped with a 21" long-excursion neodymium driver.
The large dedicated bass-reflex port enables the LA3 to achieve high SPL within a compact enclosure.
When LA3 operates in INFRA mode, it can extend the low-frequency limit of the PDTWINKLE subwoofer system down to 33 Hz.
LA3 can be ground-stacked, flown horizontally or vertically, either individually or in multi-unit arrays.
The cabinet is constructed from birch plywood with a durable black finish.
The front of the enclosure is protected by a rigid metal grille.