Alto TS18S

18in - 137dB - DISCONTINUED

product discontinued

This product has been discontinued by the manufacturer. Please contact us to find a replacement.

*Discontinued


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Alto TS18S | 18in - 137dB | 2500W Powered Subwoofer with DSP & Phase Control

Powered Subwoofer

Alto TS18S is a high-powered 18-inch subwoofer engineered for deep, high-SPL bass performance in professional sound reinforcement systems. Designed for touring rigs, installations, and mobile DJs, it delivers thunderous low-end output with advanced DSP control and rugged durability.

Alto TS18S Competitive Differences

  • 2500W peak power with 137dB max SPL and 18-inch driver
  • Selectable DSP EQ modes and 4-position phase alignment

Alto TS18S Description

The Alto TS18S delivers extreme low-end performance for venues, events, and mobile systems that demand clarity and power. Its 2500-watt Class D amplifier powers a premium 18-inch woofer with a 3-inch high-temperature voice coil—producing up to 137dB of tight, impactful bass. Built with an internally braced MDF cabinet, the TS18S minimizes unwanted resonance while maximizing low-frequency response. Its front-ported design ensures smooth airflow and solid bass projection, while the 36 mm pole socket allows easy integration with full-range speakers. This sub is more than just power—it’s smart. Onboard DSP includes user-selectable EQ presets (Off, Live, DJ) to fine-tune the output for your specific application, along with a 4-position phase alignment switch (0°, 90°, 180°, 270°) for seamless blending with tops in any setup. With combo XLR/TRS inputs, XLR thru outputs, and electronic protections against clipping, overheating, and overdrive, the TS18S is built to handle demanding environments night after night.

Model Features

  • 2500W peak Class D amplifier with high-efficiency design
  • 18-inch woofer with 3-inch high-temperature voice coil
  • Max SPL: 137dB for powerful low-end performance
  • DSP EQ modes: Off, Live, DJ for different applications
  • Phase alignment switch: 0°, 90°, 180°, 270°
  • (2) XLR+1/4” combo inputs and (2) XLR link outputs
  • Rugged MDF cabinet with 36mm pole socket and braced design
  • Mark-resistant finish and caster-ready bottom panel
  • Electronic protections: clip, thermal, overdrive

Model Specifications

  • Max SPL: 137dB (@1m)
  • Power Output: 2500W peak
  • Frequency Response: 35 Hz – 100 Hz (-3 dB)
  • Frequency Range: 27 Hz – 111 Hz (-10 dB)
  • Driver: 18in (457 mm) woofer with 3in (76.2 mm) voice coil
  • Dimensions: 26.7 x 20.9 x 24.7 in (678.2 x 530.9 x 627.4 mm)
  • Weight: 93.0 lb (42.2 kg)

What's In The Box

  • Alto TS18S subwoofer
  • Power cable
  • Quick start guide

ALTO TS18S (Alto TS-18S)

Option #1 - Affirm Financing

Order Value Term Length APR
$50-699.99 3, 6 or 12 Months Interest-Bearing
$700+ 3, 6 Months 0% (Qualified Customers)
3, 6, 12 or 18 Months Interest-Bearing
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Option #2 - Synchrony Financing

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Option #3 - Business Lease Financing

Option #4 - Free Lay-Away Program

  • -Call 877-775-7635 to get started
  • -No credit checks, no late fees, no minimum order
  • -Pay when you can & we'll ship when it's paid off
  • -FREE to use ($10 initial charge is applied to final payment)

DJ & AUDIO > Speakers & Subs > Powered Subwoofers
UPC: 0816311012126
Brand: Alto
Alto TS18S | 18in - 137dB | 2500W Powered Subwoofer with DSP & Phase Control
Alto TS18S | 18in - 137dB | 2500W Powered Subwoofe...
DISCONTINUED