Dynaudio 18S - Dual-Driver Active Studio Subwoofer

The Dynaudio 18S is a high-performance active subwoofer designed to bring deep, tight, and controlled low-end to professional studio environments. Featuring dual opposing 9.5” long-throw woofers and powerful DSP tuning, the 18S delivers outstanding bass performance down to 16 Hz while maintaining phase coherence and integration with your main monitors. It's the ideal low-frequency extension for Dynaudio's LYD, Core, and other high-end monitor systems.

Powered by a 500W Class D amplifier and equipped with a 96kHz/24-bit digital signal processor, the 18S offers advanced features like time alignment, crossover management, and room adaptation controls. Its dual-opposed driver design eliminates unwanted vibrations and ensures clean, focused bass reproduction, even at high SPLs. With balanced XLR and unbalanced RCA inputs and outputs, the 18S integrates easily into any professional or project studio.

Key Features

Professional active studio subwoofer with dual 9.5″ woofers
Dual opposing driver design reduces vibration and colouration
500W Class D amplifier for powerful, clean output
Extended frequency response down to 16 Hz (-6 dB)
96kHz/24-bit DSP for advanced filtering and phase alignment
Time alignment, low-pass filter, high-pass filter, and phase controls
XLR and RCA inputs and outputs for flexible connectivity
Perfect pairing with Dynaudio LYD, Core, and BM series monitors
Designed and engineered in Denmark

Technical Specifications

Frequency Response: 16 Hz - 230 Hz (-6 dB)
Max SPL: 117 dB peak
Amplifier Power: 500W (Class D)
Drivers: 2 x 9.5″ long-throw woofers (dual opposing configuration)
Inputs: XLR balanced, RCA unbalanced
Outputs: XLR balanced, RCA unbalanced
Dimensions (W x H x D): 447 x 300 x 268 mm
Weight: 21.5 kg

Perfect For

The Dynaudio 18S is the perfect subwoofer for producers, mix engineers, and sound designers who require accurate, extended low-end performance without distortion or unwanted resonance. Whether you're working in stereo, surround, or immersive formats, the 18S ensures your monitoring system captures every detail across the full frequency spectrum.