Subwoofer KS-218S

Highlight Features

KS-218S – Dual 18” High-Output Professional Subwoofer

KS-218S is a dual 18-inch professional subwoofer engineered for extremely powerful, deep, and high-impact low-frequency reproduction.
Equipped with two premium 18” subwoofer drivers featuring 100 mm voice coils, the KS-218S delivers authoritative bass with outstanding clarity, control, and efficiency. With massive power handling and very high SPL capability, this subwoofer is purpose-built or large-scale PA systems, concerts, clubs, festivals, and touring applications where extended low-end performance is critical.

The enclosure is constructed from CNC-crafted high-density birch plywood, ensuring exceptional mechanical strength, reduced resonance, and optimized acoustic performance. Designed for professional deployment, the KS-218S integrates robust rigging hardware, ergonomic handles, and reliable NL4 connectors, making it easy to transport, install, and integrate into demanding sound reinforcement systems.

Key Features:

• Dual 18” subwoofer configuration with 100 mm voice coils for maximum low-frequency impact.

• Extremely high power handling suitable for large-scale professional PA systems.

• Extended frequency response down to 22 Hz for deep and immersive sub-bass reproduction.

• Very high SPL capability ensures strong bass projection in large venues and outdoor events.

• CNC-crafted birch plywood enclosure for superior durability and acoustic stability.

• Professional rigging and handling design with M8 flying points and ergonomic side handles.

• NL4 connectors provide secure and reliable system integration.

Technical Specifications:

• LF Driver: 2 × 18″ subwoofers (100 mm voice coil)

• Power Rating: 2000W RMS / 3600W Peak

• Frequency Response: 22 Hz – 300 Hz (±3 dB)

• Sensitivity: 135 dB (1W / 1m)

• Maximum SPL: 138 dB (RMS), 145 dB (Peak)

• Nominal Impedance: 4 Ω

• Rigging Hardware: 8 × M8 flying points

• Handles: 2 side handles

• Pole Mount: 35 mm pole socket

• Connectors: 2 × NL4 (pins +1 / −1)

• Enclosure: CNC-crafted high-density birch plywood

• Net Weight: 82 kg

• Dimensions (W × D × H): 838 × 1069 × 590 mm