Electro-Voice TX2181 - Dual 18” Passive Subwoofer (Tour X) for Low Frequency Reinforcement

Electro-Voice TX2181 - Dual 18” Passive Subwoofer (Tour X) for Low Frequency Reinforcement

The Electro-Voice TX2181 is a Tour X series subwoofer module designed to bring high impact, high efficiency bass to full range systems like the TX2152 . It features two high excursion 18” EVS-18S woofers in a rigid, well-braced enclosure constructed of plywood + MDF with heavy duty EVCoat coating. The 16 GA steel grille with rotating logo protects the transducers without compromising low distortion port airflow. With 103 dB sensitivity and 138 dB rated peak level, it delivers punchy SPL from reasonable power stages.

Electrically, the TX2181 operates at 4 Ω (min. 2.9 Ω) and supports 1000 W continuous ( 4000 W peak ). Its frequency response spans 40 Hz–1.5 kHz (-10 dB) / 50–160 Hz (-3 dB) , with a recommended low-pass filter between 80 and 120 Hz . Important: it does not have an internal passive filter ; it is designed for use with external processing/crossover and a dedicated amplification channel . For everyday use, it has 4 integrated handles , a recessed connection panel with 2 × Neutrik Speakon NL4 in parallel and fixing points for the optional TX-W1 wheel kit. Dimensions: 1154 × 508 × 691 mm . Net weight: 56.1 kg . Black finish.

Main features

• Acoustic architecture: Dual 18” EVS-18S high-excursion speakers; low-distortion port; braced enclosure.
• Power and levels: 1000 W continuous / 4000 W peak ; 103 dB sensitivity; 138 dB SPL max. (calc.).
• Working band: 50–160 Hz (-3 dB) ; 40 Hz–1.5 kHz (-10 dB) ; recommended low-pass 80–120 Hz .
• Impedance: 4 Ω nominal (min. 2.9 Ω ).
• Connectivity: 2 × Speakon NL4 in parallel; flush-mounted panel for easy installation close to walls.
• Construction: Plywood + MDF with EVCoat coating; 16 GA steel grille with rotating logo.
• Ergonomics: 4 integrated handles and mounting points for TX-W1 wheel kit (optional).
• System integration: size coordinated with TX2152 for column stacking ( ground-stack ).
• Dimensions and weight: 1154 × 508 × 691 mm ; 56.1 kg .

Product benefits

• Powerful bass with high efficiency: The combination of dual 18” drivers and 103 dB of sensitivity reduces power demand to achieve high levels.
• Professional construction: EVCoat wood cabinet and steel grille to withstand heavy touring and rental use.
• Rapid deployment: Handles, a recessed panel, and wheel options streamline event logistics.
• Tested compatibility: direct pairing with TX2152 and other Tour X family tops via external processing.

Use cases

• Main PA for live events, festivals and medium-sized concert halls.
• Clubs and venues that require bass extension with impact and control.
• Rental companies looking for robust, stackable, and easy-to-transport modules.

Frequently Asked Questions

• Does it include an internal low-pass filter? No. The TX2181 does not have an internal passive crossover ; it must be filtered using external DSP and fed by a dedicated amplifier channel .
• What tops is it designed for? It's the bass complement to the TX2152 (and other Tour X). It's common to stack the TX2152 on top of the TX2181 in a ground stack .
• What frequency cutoff do you recommend? 80–120 Hz (low-pass) according to the manufacturer's specifications.
• Can it be flown? It's not flight-ready; it's a floor-standing/stacked subwoofer.

Description for projects

2 × 18” EVS-18S passive subwoofer, sensitivity 103 dB , max. SPL (calc.) 138 dB , power 1000 W continuous / 4000 W peak , 4 Ω (min. 2.9 Ω ), response 50–160 Hz (-3 dB) / 40 Hz–1.5 kHz (-10 dB) , recommended low-pass 80–120 Hz , 2 × NL4 in parallel, plywood + MDF enclosure with EVCoat , 16 GA steel grille, 4 handles , TX-W1 wheel kit compatibility; 1154 × 508 × 691 mm , 56.1 kg , black.