Alto Professional TX18S 18" 900W Bass-Reflex Active Powered Subwoofer

SKU: ALTX18SXUS MFR: TX18SXUS
Earn VIP Reward Points

Key Features

  • Experience powerful, accurate bass frequency response with 900W peak power for immersive audio.
  • Achieve deep, rich low-end sound with the 18" woofer, perfect for any studio subwoofer setup.
  • Easily connect your gear using versatile XLR-1/4" TRS inputs and link outputs for seamless integration.
  • Enjoy robust and reliable performance thanks to its durable bass-reflex enclosure and Class-D amplifier.
  • Optimize your sound with the integrated low-pass filter, ensuring precise audio control for studio use.
  • Set up quickly and securely with the convenient 1.42" pole socket, ideal for various room configurations.
See More Product Details
Temporarily On Backorder?Expected Availability: 04/2026
Calculate Shipping

See Options

1

Need help? Ask our experts.

Overview
Compare
Specs
Protection

Reviews about this item

Review Summary

Alto Professional TX18S Specifications

General

General

Jump to...
  • Speaker Type

    Active Subwoofer

  • Enclosure Type

    Bass-Reflex

  • Total Output Power

    450 W RMS / 900 W Peak

  • Amplifier Class

    Class-D

Drivers

Jump to...
  • LF Driver

    1x 18" (45.7cm) Woofer
    Voice Coil: 3" (76.2mm)

Performance

Jump to...
  • Frequency Range/Response

    36 Hz to 115 Hz (-3 dB)

  • Maximum SPL

    126 dB (Peak)

  • Protections

    Output Limiter, Thermal

Signal Processing

Jump to...
  • EQ & Filters

    Low-Pass Filter

  • Alignment Delay

    No

  • Digital Signal Processing

    No

Connectivity

Jump to...
  • Audio I/O

    2x Combo XLR-1/4" TRS Line/Mic Input
    2x XLR 3-Pin Link Output

  • Network I/O

    No

  • USB I/O

    No

  • Wireless

    Bluetooth 5.0

  • Mobile App Compatible

    No

  • AC Input Power

    100 to 120 VAC, 50 / 60 Hz
    220 to 240 VAC, 50 / 60 Hz

  • AC Power I/O

    1x IEC Input

Physical

Jump to...
  • Color

    Black

  • Mounting

    1x 1.42" (36mm) Pole Socket (Bottom)

  • Handles

    1x Each Side

  • Construction Material

    MDF, Metal Grille

  • Environmental Resistance

    No

  • Dimensions

    23 x 23 x 23" (584.2 x 584.2 x 584.2mm)

  • Weight

    87.7 lbs (39.8kg)

  • UPC Code

    0816311012355

About Alto Professional TX18S

The Alto Professional TX18S brings much more to the table than sheer sonic force. This unit can handle deep bass frequencies and project them into any large-scale venue, nightclub, house of worship, or place of business with pristine clarity and nuance. DJs and musicians who are tasked with carrying their own equipment from location to location rejoice-not only is the TX18S optimized for portability, but it is also designed to integrate seamlessly into just about any audio setup in any number of settings and rooms. Those who are looking to install the TX18S as a permanent fixture of their restaurant, bar, cafe, gym, or venue will be relieved at just how easy this unit is to use. The controls are simple yet effective, ensuring impressive low-end response regardless of your technical know-how or audio experience.

Sonic Power and Reliability
Thanks to an 18-inch driver with a 3-inch voice coil, the TX18S can handle the nuanced, deep bass frequencies that are all too commonly lost when using standard full-range speakers. The powerful onboard 900W amplifier comes equipped with circuitry and overload protection that will ensure your low end is clean and clear even at full blast.

Multiple Output Modes
One of the TX18S's most powerful features is its two different Live and Music EQ voicing modes and selectable Low Pass Filters. This allows users to switch the subwoofers frequency response to seamlessly integrate with any speaker it is being used alongside and where the music is being played. These pared down and straightforward parameters change the EQ to fit your surroundings with the press of a button as opposed to having to fuss with complicated, multifaceted controls.

Optimized for Durability and Performance
The TX18S is built to withstand any wear and tear that may occur. The subwoofer's enclosure is made from fiberboard that is durable, resonant-free, and actually enhances the unit's inherent acoustic qualities. In addition, this subwoofer and all other products in the TX Series are designed and tuned in the United States.

Alto Professional TX18S Features

  • 900W Ultra-Efficient Class-D Power Amplifier
  • 18-inch high-output woofer with 3-inch voice coil
  • DSP-based EQ and protection
  • Music and Live EQ voicings
  • Selectable Low Pass Filter (80Hz/100Hz/120Hz)
  • Polarity Reverse
  • (2) XLR + 1/4-inch combo line inputs
  • (2) balanced XLR line outputs
  • Ported design with full metal grille for premium style and protection
  • Rugged, internally braced front-ported MDF cabinet with 36mm pole socket
  • Splatter-spray finish retains sleek appearance even with heavy use
  • Side handles

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Experience powerful, accurate bass frequency response with 900W peak power for immersive audio.
  • Achieve deep, rich low-end sound with the 18" woofer, perfect for any studio subwoofer setup.
  • Easily connect your gear using versatile XLR-1/4" TRS inputs and link outputs for seamless integration.
  • Enjoy robust and reliable performance thanks to its durable bass-reflex enclosure and Class-D amplifier.
  • Optimize your sound with the integrated low-pass filter, ensuring precise audio control for studio use.
  • Set up quickly and securely with the convenient 1.42" pole socket, ideal for various room configurations.

What's in the box:

  • Alto Professional TX18S 18" 900W Bass-Reflex Active Powered Subwoofer
  • Power Cord
  • Alto Professional 1 Year Limited Warranty