Alto Professional TX18S 900-watt 18-inch Powered Subwoofer

Alto TX18SXUS 

Description

The TX18SXUS is a powered 18″ subwoofer designed to deliver deep and powerful bass for medium-to-large venues, events, clubs, or large-room PA systems. It uses a high-output 18″ driver in a ported, rugged enclosure, with an onboard Class-D amplifier and built-in DSP control. The unit is versatile for mobile gigs or fixed installations and integrates seamlessly with full-range speakers to provide strong low-end support, making it ideal for live music, DJ sets, parties, or venues needing impactful bass.

 Key Features

• Power & Amplification — 900 W peak Class-D amplifier (450 W RMS) powering the 18″ woofer with 3″ voice coil.

• Woofer / Driver — 18″ high-output woofer with 3″ voice coil for deep, controlled bass reproduction.

• Frequency Response — Approximately 36 Hz – 115 Hz (‑3 dB) for strong low-end presence.

• Maximum SPL — Up to 126 dB peak at 1 meter — loud enough for clubs, large halls, and events.

• DSP & Bass Control — Built-in DSP with selectable EQ modes (“Music” / “Live”), low-pass filter options (80 Hz / 100 Hz / 120 Hz), and polarity reverse to tailor subwoofer response.

• Connectivity / I/O — Two combo XLR / ¼″ line inputs and two balanced XLR line outputs for linking to mixers or multiple units.

• Enclosure & Build — Rugged, internally-braced, front-ported MDF cabinet with metal grille and durable finish for frequent transport or gigging.

• Mounting & Portability — Side handles for carrying; bottom 36 mm pole socket allows stacking a satellite speaker on top.