The Riot-18S delivers the foundation your sound system needs, whether you're running DJ sets, live bands, or church services that demand serious low-end presence. This powered subwoofer handles venues up to 500 people with authority.

Built around an 18-inch woofer driven by 800 watts RMS (1600 watts peak), the Riot-18S reaches down to 30 Hz to capture kick drums, bass lines, and electronic music with full impact. The Class D amplifier with DSP processing ensures clean, efficient power delivery while the built-in crossover and adjustable low-pass filter (80-150 Hz) let you dial in the perfect blend with your main speakers.

The LCD interface puts control at your fingertips with master volume, mode selection, delay settings, and polarity control. At 126 dB max SPL and 96 dB sensitivity, this subwoofer moves serious air while maintaining clarity. The 4-ohm impedance pairs well with most PA systems, and the reinforced plywood cabinet with metal grille handles the rigors of mobile performance.

Perfect for DJ rigs that need to fill dance floors, bands playing clubs and outdoor festivals, or permanent installations in churches and event halls. The robust construction and recessed handles make load-in manageable despite the 112-pound weight.

Connect via XLR combo jack input with XLR loop-through output for daisy-chaining multiple subs. PowerCon power cable included. One-year warranty and fast shipping ensure you're covered from purchase to performance.

Technical Specifications

Frequently Asked Questions

What size venue can the Riot-18S handle?

The Riot-18S works well for venues up to 500 people, including clubs, medium churches, outdoor events, and wedding receptions. With 126 dB max SPL and deep 30 Hz extension, it provides the low-end foundation needed for both live music and DJ applications. For larger venues or outdoor festivals, consider pairing two units for even coverage.

What cables do I need to connect the Riot-18S?

You'll need an XLR cable to connect from your mixer's subwoofer output or main output to the Riot-18S input. The PowerCon power cable is included in the box. If you're daisy-chaining multiple subwoofers, use additional XLR cables to connect the loop-through output to the next unit's input.

Do I need a subwoofer with full-range PA speakers?

Yes, adding the Riot-18S transforms your sound system by handling the low frequencies that full-range speakers struggle with. This lets your main speakers focus on mids and highs while the subwoofer delivers the kick drums, bass lines, and low-end punch that audiences feel. The built-in crossover ensures smooth integration between your mains and the sub.

How do I set the crossover frequency on the Riot-18S?

Use the LCD interface to adjust the low-pass filter between 80-150 Hz depending on your main speakers. Start at 100 Hz for most full-range speakers, then fine-tune by ear. Lower settings (80-90 Hz) work well with speakers that have good mid-bass response, while higher settings (120-150 Hz) help if your mains are smaller or mounted high.

Can I use multiple Riot-18S subwoofers together?

Absolutely. Use the XLR loop-through output to daisy-chain multiple units from a single mixer output. The LCD interface includes polarity and delay controls to help phase-align multiple subs for maximum impact. Two Riot-18S units provide exceptional coverage for larger venues or outdoor events where you need serious low-end presence.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov