Dynaudio 18S

A Subwoofer Designed to Complement the Dynaudio Pro Range (BM Classic and LYD)

The 18S was developed to acoustically match Dynaudio Pro monitors, from the BM Classic series to the LYD. Its approach is based on DSP modeling and performance maps dedicated to specific speakers, aiming to achieve filtering and level coherence closer to a system designed as a whole. The idea is simple: add true low-end without losing monitoring neutrality, and evolve integration through firmware updates as new monitors join the range.

Who Is It For and What Monitoring Applications?

The Dynaudio Pro 18S targets studios that want to secure mixing decisions in the low frequencies: kick/bass balance, sub control, low-end compression management, and verification of translation on other systems. It is equally relevant for mixing and mastering, especially in rooms where the low end is difficult to interpret. In stereo or surround setups (notably with a LYD 48 installation), it extends monitoring capabilities and approaches a more complete listening experience, while maintaining ergonomics adapted for daily use.

DSP, Presets, and Calibration: Precise, Integrated, and Usable Bass

Speaker Presets and Preconfigured Filtering (Crossover)

The 18S features an advanced DSP with presets designed to pair with several Dynaudio Pro monitors. Through the screen and menu system, you select the speakers used to adapt the roll-off and crossover filters. The result: a cleaner transition between subwoofer and satellites, and more reliable bass monitoring at working levels.

Time Alignment and Phase: A Solid Foundation at the Listening Position

To avoid muddy or hollow bass caused by delays, the 18S offers time alignment: you enter the distance between the subwoofer and the speakers, and the system applies delay and phase adjustments for more coherent synchronization. A 0/180 degrees phase adjustment is also available to optimize bass summation depending on placement.

3-Band Parametric EQ: Taming Room Modes

The bass region is the most sensitive to acoustics. The 18S integrates a three-filter parametric equalizer to quickly attenuate resonances and room modes that distort perception. This is a key asset for regaining a more linear low-end without multiplying external units.

MSP+ Hybrid Drive and Opposed Design: Impact, Endurance, and Low Perceived Distortion

The 18S relies on two MSP+ Hybrid Drive woofers specifically designed for subwoofer use, with a hybrid construction (aluminum, paper cone support, and MSP dust cap) aiming for a balance between rigidity, lightness, and damping. The dual opposed driver design contributes to cleaner, better-controlled bass, with mechanical behavior suited to demanding monitoring applications.

Connectivity and Studio Features (RCA/XLR, Daisy Chaining)

To integrate into various environments, the 18S offers balanced XLR and unbalanced RCA inputs/outputs. A master/slave function allows chaining multiple subwoofers when the configuration requires it, while maintaining clear control logic. Finally, Auto ON/OFF management simplifies daily use.

Technical specifications

Battery	No	EQ	Yes
Number of channels	1 channel	Inputs	XLR, Rca
Bluetooth	No	Color	Black
Connection	RCA, XLR	Power output	500 W
Speaker diameter	9"	Quantity	1
Number of speakers	2

System	Dual 9-inch opposed driver, sealed enclosure, active subwoofer	Analog Inputs	2 x balanced XLR, 2 x unbalanced RCA
Enclosure Principle	Sealed	Analog Outputs	2 x balanced XLR, 2 x unbalanced RCA
Woofer	2 x 230mm MSP+ Hybrid Drive	I/O Connectors	Balanced XLR/RCA
Amplifier	500W Class-D	Presets designed to work with	BM6 Classic, BM15 Classic, LYD 5, LYD 7, LYD 8, LYD 48, M5P
Frequency Range	16 to 230 Hz	Auto ON/OFF	Yes
Frequency Response (+/-3dB)	16Hz - 230Hz	AC Power Input	100-120V/220-240V 50/60Hz
Maximum SPL (1m, pair)	110dB	Standby Power Consumption	< 0.5W
Low-pass Filter	Adjustable/preselected	Maximum Power Consumption	490W
Phase Adjustment	0/180 degrees