Alto Professional TX18S 900W 18" Powered Subwoofer with Enhanced DSP

The Alto Professional TX18S is a professional-grade 900-watt active subwoofer featuring an 18" high-excursion woofer and enhanced DSP processing for precise, powerful low-end reinforcement. Designed to complement Alto's TX Series full-range speakers, the TX18S delivers tight, controlled bass for live sound, DJ performances, events, and installed audio applications.

Key Features

• 900 watts RMS Class D amplification
• 18" high-excursion woofer for deep, impactful bass
• Enhanced DSP with selectable crossover and EQ settings
• XLR and 1/4" combo inputs for flexible connectivity
• XLR thru outputs to daisy-chain full-range speakers
• Variable low-pass crossover filter for seamless satellite speaker integration
• Phase switch (0°/180°) for optimal system alignment
• Subsonic filter to protect the driver
• Pole mount socket on top for mounting a full-range speaker
• Rugged wooden cabinet with durable finish
• Integrated carry handles for easy transport

Specifications

• RMS Power: 900W
• Amplifier Class: Class D
• Woofer: 18" high-excursion
• Frequency Response: 35Hz – 150Hz
• Max SPL: 132dB
• Inputs: XLR + 1/4" combo
• Outputs: XLR thru
• DSP: Enhanced, with variable crossover and EQ
• Low-Pass Filter: Variable
• Cabinet: Wooden with durable finish
• Pole Mount: Yes (top-mounted)