NEXO RS18 Sub Bass Loudspeaker

The NEXO RS18 Sub Bass Loudspeaker harnesses patent-pending RAY SUB™ technology in a compact, low-profile 2 × 18″ format. By optimizing the phase relationship and acoustic distance between its radiating surfaces, it delivers a coherent 30 Hz–100 Hz frequency response with an average +5 dB forward gain and effective rear cancellation—perfect for installations and touring applications requiring powerful, directional bass reinforcement.

Key Features

• Patent-pending RAY SUB™ Technology for unmatched bass coherence and configurable directivity

• Two 18″ long-excursion Neodymium drivers for deep, accurate low-frequency output

• Cardioid or omni-directional operation to minimize rear wall reflections

• Aerodynamically profiled vents reducing port noise by up to 20 dB at high SPL

• Robust Baltic-birch ply enclosure with optional touring (with handles) or install (no-handles) finishes

Technical Specifications

• Drivers • 2 × 18″ (46 cm) long-excursion Neodymium woofers

• Frequency Response • Nominal: 30 Hz – 100 Hz (–3 dB) • Usable: 29 Hz – 150 Hz (–6 dB)2

• Sensitivity (1 W/1 m) • 105 dB SPL nominal (Omni) / 103 dB SPL nominal (Cardioid)

• Peak SPL @ 1 m • 143 – 146 dB (Omni) / 140 – 143 dB (Cardioid)

• Impedance • 2 × 8 Ω nominal

• Recommended Amplification • Omni mode: 3 500–8 000 W into 4 Ω (1 channel) • Cardioid mode: 1 750–4 000 W into 8 Ω per channel (2 channels)

• Connectors • 4 × NL4MP Speakon® (In/Through)

• Dimensions (H × W × D) • Tour version (w/ handles): 520 × 1 403 × 732 mm • Install version (no handles): 520 × 1 238 × 732 mm

• Weight • Net: 90 kg (199 lb) • With handles: 105 kg (231.5 lb) • With rigging system: 126 kg (278 lb)