The Action 18A is a powered subwoofer system designed to provide extended bass response for the Action full-range cabinets. A 1500 W peak Class D amplifier drives a D.A.S. 18H bass loudspeaker. The 18H loudspeaker incorporates a 4″ voice coil for high power handling and output.

The subwoofer system includes two balanced inputs with stereo filtered output connections for Action satellite systems. The variable crossover ranges from 100 Hz-160 Hz and can be defeated to offer stereo “loop thru” connections. A gain control and polarity reverse feature increase user control over the system.

The cabinet is constructed of Birch plywood protected by an environmentally friendly ISO-flex black paint finish. Durable side handles and a robust steel grille are provided. Optional hardware available for a variety of installation / use applications.

This Action series subwoofer feature a Variable LPF, Polarity and a Logo-On/Off Switch. It also includes a professional Neutrik Combo-Jack Input & Thru connection along with a power cable.
 
Specifications
Powered subwoofer system.
High output 18″ loudspeaker.
Polarity switch (0º-180º).
Filtered ouput defeat switch.
Variable 60-160 Hz high-pass filter.
Gain control.