From the Manufacturer
The Y18 is a high power, 3-way line array featuring two proprietary Adamson mid/high drive modules. The Adamson drive module The drive module is powered by a proprietary 9″ Kevlar mid and a JBL 2451 compression driver Together, the drive module and trapezoidal cabinet design create a smooth, slightly curved, seamless wave front with no gaps between cabinets. The Y-Axis has a defined coverage pattern of 90 degrees (-3dB) – 100 degrees (-6dB) by 5 degrees. The vertical coverage is determined by the number of cabinets added to the array. has a co-axial entrance and a co-linear exit comprised of a high frequency sound chamber mounted within a mid frequency sound chamber. The Y-Axis comes complete with a sliding hinge rigging system that is fast and efficient. With eleven half-degree increments, you can achieve precise angular positioning by adjusting the extension of the sliding hinge while the front of the array remains closed. Light, durable aluminum dollies and all the components for rigging the Y-Axis come standard. Aluminum rigging frames to support 16 or 24 Y-Axis are available as optional accessories.