Stage Floor Monitor Wedge

1x 12" Driver + 1.4" Horn - 1050 Watts Program

The Acoustic Technologies SFM24 is a purpose engineered, low profile 2-way Stage Foldback Monitor system intended for high-end live production applications. The SFM24 features advanced transducer technology combined with the latest in computer aided design to deliver outstanding performance from a surprisingly compact enclosure.

The SFM24 employs a highly efficient 12” Neodymium L.F. transducer and a 1.4" exit Neodymium H.F. compression driver coupled to a custom engineered asymmetrical waveguide, providing superior coverage with exceptional gain before feedback. SFM24 cabinets are available as mirror-imaged pairs or can easily be re-configured by the user as required.

The SFM24 changeover switch allows operation in passive mode using the sophisticated built-in dividing network, or bi-amp mode using the factory recommended Loudspeaker Management System settings. Connection Panels with dual Speakon Connectors are located on each end of the cabinet.

The extensively braced cabinet is constructed from premium grade void free Finnish Birch ply using precision CNC machining. Durable AcoustiCoate elastomer coating and a powder coated perforated steel grille complete the package.

The SFM24 is the speaker system of choice for any professional stage monitoring application requiring high performance from a compact lightweight enclosure.

Download hi-res image: Front
Download hi-res image: Front - no grille
Download product information sheet as .PDF
Download the Linear Response Loudspeaker Management System settings.
Download the Vocal Optimised Loudspeaker Management System settings.


Transducer Complement 1 x 12" Bass Transducer
1 x 1.4 " exit H.F. Compression Driver
High Frequency Dispersion 80°(H) x 40°( V Asymmetrical)
Physical Size Height 331mm, Width 573mm,
Depth 287mm
Net Shipping Weight 21 Kg
Connectors and
Mode Switch
Connection Panels on Left & Right Side of Cabinet
2 x Speakons per Connection Panel
Active / Passive Mode changeover switch
Hardware Handgrips
Cabinet Finish AcoustiCoate Black Elastomer Finish.
Grille Finish Black Powder Coat Paint Finish
lined with acoustically transparent foam.

Passive Mode Specifications:

Frequency Response 100 Hz - 16kHz ± 3 dB
Sensitivity 100 dB @ 1 watt, 1 metre
Max Input Continuous
Max Input Program
525 Watts RMS
1050 Watts Program
Max SPL Continuous
Max SPL Program
127 dB @ 1 metre
130 dB @ 1 metre
Nominal Impedance 8 Ohms

Active Mode Specifications:
Freq. Response - Bass
Freq. Response - H.F.
100 Hz - 5.0 kHz ± 3 dB
600 Hz - 16.0 kHz ± 3 dB
Sensitivity - Bass
Sensitivity - H.F.
100 dB @ 1 watt, 1 metre
110 dB @ 1 watt, 1 metre
Max Input Continuous - Bass
Max Input Continuous - H.F.

Max Input Program - Bass
Max Input Program - H.F.
450 Watts RMS
75 Watts RMS

900 Watts
150 Watts
Max SPL Continuous - Bass
Max SPL Continuous - H.F.

Max SPL Program - Bass
Max SPL Program - H.F.
127 dB @ 1 metre
128 dB @ 1 metre

130 dB @ 1 metre
131 dB @ 1 metre
Active Crossover Frequency 1.2 kHz or higher at 24 dB / Octave
Nominal Impedance - Bass
Nominal Impedance - Mid - High
8 Ohms
16 Ohms


The SFM24 enclosure is constructed of high quality Finnish Birch ply. A wide range of hardware, connector, mounting, grille and cabinet finishing options are available.
The transducers are protected by a perforated steel mesh, lined with acoustically transparent foam, providing a durable visually appealing finish.
The SFM24 passive crossover provides a seamless transition between the transducers. The crossover frequency is selected to enhance the already superb performance of the individual components. Great care is taken to ensure that a phase coherent output is maintained across the entire audio bandwidth.

Sensitivity, Maximum Power and SPL measurements are conducted in accordance with the AES 24 Hour Pink Noise Standard. Acoustic Technologies reserve the right to alter or amend the SFM24, without prior warning in the interests of product improvement.