The S12 PRO is a compact active subwoofer designed especially for the M-Line systems. It is composed by a single 12” driver in a bassreflex configuration, powered by an 800 W Class-D amplifier. Its efficient design and compact size guarantees flexible placement in all kinds of environments. In addition, a two-point SE rigging system allows for safe and easy stacking. The unit contains a newly designed 800 W Class-D power amplifier and is equipped with 24-bit/48 kHz DSP. By using the LCD screen and rotary encoder, users can control various system parameters such as delay, EQ, filters and more.

The built-in factory presets reduce setup times for existing M-Line systems in various configurations. This makes easy the setup of an end-fire or cardioid setup, by simply choosing one of the dedicated factory presets. Furthermore, custom configurations can be saved as user presets.

Built-in power amplifier & DSP

Each S12 PRO subwoofer is equipped with an 800W class-D power amplifier with switching-mode power supply for minimum weight and maximum flexibility anywhere in the world.

Additionally to that our 24bit/48kHz DSP processor provides signal filtering and ensures maximum driver protection.

DSP Presets

Integrated presets help to quickly load different system setups to be used with various M-F3A and M-F3A Pro configurations. Setting up an end-fire or cardioid setup e.g. can be done by choosing dedicated factory presets.

Integrated Rigging

S12 PRO subwoofers are equipped with two-point SE stacking system that compromises 2 pieces of slide & lock mechanisms to connect two stacked subwoofers to each other. The same system is used to connect optional M-F3A SF stacking frame. 

Cardioid subwoofer setups

Due to the intelligent stacking design, it is possible to operate our S12 subwoofers as a cardioid setup without any problems.

EASE® Ready

AFMG® EASE® and EASE® Focus 3 GLL are available for the whole M-F3A PRO family. This allows users to simulate and calculate various parameters such as audience coverage, SPL, frequency response, splay angles, delay times and more. Files are available in the Downloads section. 


Model:S12 PRO / S12 PRO W
Frequency Response (-6dB):40 - 135 Hz
Amplification (RMS / Continuous / Peak):400 W / 800 W / 1600 W
Amplifier Type:Class D, SMPS
Sensitivity (1W/1m):95 dB
Max SPL (@1m) *:133 dB peak*
Dispersion (H x V):Omnidirectional
Transducers:WF: 1 x 12” ferrite magnet and 3’’ voice coil
DSP:48 kHz, 24-bit DSP processor, processing latency: 1.1 ms
Signal Processing:Speaker presets, Dealy, EQ, HPF/LPF, Parametric EQ (Q,F, Gain), RMS Limiter, Peak Limiter, Phase Invert, Mute, Output Gain
Protection:Limiter, short-circuit, over-temperature, over-current
Controls:Digital encoder with push-button
Indicators:Power On, Signal In, Limit, Protect
Audio Connectors:XLR 3-pin female line-level input, XLR 3-pin male signal link
Power Connectors:Neutrik PowerCon® type A power input, type B power link (max: 15A, max 4 pcs per line)
Hardware:2x two-point SE stacking system, M20 distance pole thread
Power Requirements:100 - 120 VAC or 220 - 240 VAC
Cabinet:15 mm plywood, black or white polyurea coating
Dimensions (W x H x D) :507 x 355 (385 with rigging) x 495 mm
Weight:23 kg