Alto Professional TX18S Active Subwoofer

Alto Professional TX18S Active Subwoofer

The Alto Professional TX18S is a high-performance active subwoofer designed to provide a robust and deep foundation for your sound system. The unit features a massive 18-inch (457 mm) low-frequency driver with a 3-inch voice coil, powered by a 900 W (Peak) Class D amplifier. This combination ensures impressive bass reproduction down to 36 Hz.

The subwoofer boasts advanced DSP, allowing sound optimization to suit your needs. You can choose from 6 different operating modes, combining "Music" or "Live" EQ settings with selectable Low-Pass Filter (LPF) frequencies (80 Hz, 100 Hz, 120 Hz). This allows for perfect integration of the subwoofer with any main speakers.

The robust MDF cabinet with a special splatter-spray finish is resistant to scratches and intensive use. The subwoofer features an integrated pole mount socket, comfortable handles for transport, and the ability to attach castors (sold separately).

Key Features

• Power: 900 W Peak (450 W RMS) Class D amplifier.
• Driver: 18-inch low-frequency driver with a 3-inch voice coil.
• DSP Control: Selectable "Music" / "Live" EQ modes and adjustable LPF (80/100/120 Hz).
• Connectivity: 2 x XLR+1/4” Combo inputs and 2 x XLR outputs for signal pass-through.
• Cabinet: Robust MDF with metal grille and 36 mm pole mount socket.
• Protection: Electronic protection against overload, overheating, and signal distortion.

Technical Specifications

• Manufacturer: Alto Professional
• Model: TX18S
• Type: Active Subwoofer
• Output Power: 900 W Peak / 450 W RMS
• LF Driver: 18.0” (457 mm) with 3.0” (76 mm) voice coil
• Frequency Response: 36 Hz – 115 Hz (-3 dB)
• Max SPL: 126 dB @ 1 m
• DSP Functions:
  • EQ Modes: Music, Live
  • LPF Frequencies: 80 Hz, 100 Hz, 120 Hz
  • Polarity: 0° / 180° (Phase Reverse)
• Connectors:
  • 2 x XLR / 1/4” (6.35 mm) TRS Combo inputs (female)
  • 2 x XLR Thru outputs (male) (full-range or filtered, depending on settings)
  • 1 x IEC power socket
• Dimensions: 585 x 585 x 585 mm
• Weight: 39.8 kg
• Castors: Ready for mounting (M6 threads, castors not included)

What's in the box?

• 1 x ALTO TX18S Subwoofer
• 1 x IEC power cable
• 1 x Quickstart Guide
• 1 x Safety and Warranty Instructions

Intended Use

• DJs and bands requiring powerful bass support in larger venues.
• Clubs, bars, and event spaces as a permanent part of the sound system.
• Rental companies looking for a reliable and versatile "workhorse".