The Electro-Voice TX1181 is a high-power subwoofer 
that can be used to extend the low-frequency performance of the TX1122 and TX1152 loudspeaker systems.The TX1181 uses the EVS-18S, a high excursion 18” woofer, coupled to a well-braced enclosure with large, low distortion ports, to add high-impact bass response to any full-range loudspeaker. An integrated low pass filter allows the TX1181 to be connected in parallel with a TX1122 or TX1152 on a single amplifier channel, eliminating the need for additional amplifier channels and processing.
 
The TX1181 has many features that make it a versatile subwoofer system. 
The enclosure is constructed out of a combination of MDF and plywood and coated with a black EVCoat finish for maximum strength and durability—all while keeping the sub’s weight to a minimum. Built to take on the rigors of touring or heavy-duty permanent use, the TX1181’s unique grille design is very strong, is dent resistant, and features a rotatable logo.
 
Four-way handles allow for gripping the TX1181 
in a variety of positions so you can get it placed perfectly to enjoy its performance at its best.The recessed input panel with dual NL4 connectors keeps the connectors hidden and allows for closer placement to a wall or other boundary. An integrated pole mount allows for elevating a TX1122 or TX1152, and integrated mounting points on the rear of the enclosure allow the optional TX-W1 wheel kit to be attached for easy portability. (The TX1122, TX1152, and TX-W1 are sold separately.)
 
Features
High-power LF supplement to TX1122 and TX1152
High-excursion EVS-18S woofer
6 dB/octave low-pass filter for parallel connection without added amp100 dB sensitivity, 132 dB max SPL Power handling: 500 W continuous, 2000 W peak
Top-side socket for speaker poleBraced plywood/MDF enclosure
Black EVCoat finish