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LD Systems LD Systems

LD Systems MON 12 A G3 12" Powered Coaxial Stage Monitor

Q&A SKU #M05751000000000
599.99 $599.99
13 $13/mo. with 48 months financing*
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12" compact high-performance stage monitor with top-of-the-range technologies.

The LD Systems MON 12 A G3 12" powered coaxial stage monitor is part of an entirely newly developed family of powered stage monitors for high performance. The MON G3 Series incorporates the advanced technology and premium materials found in high-end monitors typically rented by professionals, making this quality available to everyone. These include, for example, advanced coaxial loudspeakers with integrated 50° x 90° CD horn, which ensure the acoustic ideal of a true point source and thus outstanding audio characteristics even at short listening distances. Besides this, the series offers a high-level of robustness, a comprehensive set of features and the elegant LD Systems design.

For decades, 12"/1" stage monitors have been the golden mean when it comes to sonority, sound pressure and portability. With coaxial design, smart electronics and a professional look, the MON 12 A G3 brings this concept into the modern age. The ideal dispersion geometry of 50° x 90° for monitor use or 90° x 50° for FOH use make it a multi-talent that offers the right solution for a wealth of different tasks.

Both the signal (XLR/jack combo) and the power connection (PowerCON compatible) can be looped through. This allows for elegant, tidy cabling in multi-monitor set-ups or for distributed sound reinforcement.


  • Class-D power amplifier with 300 W RMS/1200 W peak and 127 dB max. SPL
  • Coaxial design for true point source with a 1.75" titanium-diaphragm HF driver
  • 12" woofer with 2.5" voice coil
  • Optimised, practical radiation pattern due to 50° x 90° CD horn
  • DynX DSP (Gen.2) for distortion-free sound even at maximum volume
  • 3-band EQ, Notch filter, 4 application presets and delay function
  • PowerCON compatible loop-through professional power connection
  • 1.4" speaker stand flange for FOH applications
  • Durable Polyurea coating and heavy-duty front grille

Order this high-performance stage monitor today.


MON 12 A G3 12" Powered Coaxial Stage Monitor Specifications:

  • Product type: Stage monitors
  • Type: Powered
  • Color: Black
  • System output (RMS): 300 W
  • System output (Peak): 1200 W
  • Max. SPL Average (Sine burst): 120 dB (100 Hz - 12 kHz, fullspace @1m, 10% THD)
  • Max. SPL Peak (Sine burst): 127 dB (fullspace @1m, 10% THD)
  • Frequency response (-3 dB): 68 - 18000 HZ
  • Frequency response (-10 dB) : 55 - 20000 Hz
  • Crossover frequency: 1400 Hz
  • Monitor angle: 33°
  • Dispersion (H x V): 50° x 90°
  • Width: 17"
  • Depth: 18"
  • Height: 12"
  • Weight: 38lbs
Low/mid woofer
  • Low/mid Woofer dimensions: 12"
  • Woofer magnet: Ferrite
  • Woofer brand: Custom-made
  • Woofer type: Coaxial loudspeaker
  • Woofer voice coil: 2.5"
  • Cabinet construction: Bass Reflex
  • Cabinet material: 0.59" Birch Plywood, 0.59" MDF
  • Horn: CD Horn
  • Tweeter dimensions: 1"
  • Tweeter magnet: Ferrite
  • Tweeter brand: Custom-made
  • Tweeter voice coil: 1.75"
Amplifier module (integrated)
  • Amplifier: Class D
  • Protection circuits: Multiband limiter, over voltage, over-current, thermal overload
  • Operating Temperature: 0–40 °C
  • Humidity Range: < 80 % ( non-condensing )
  • Fuse: T4AL 250 V
  • Controls: On/off switch, Rotary/push encoder
  • Indicators: LC display
  • Operating voltage: SMPS
  • Operating voltage: 100 V AC - 240 V AC, 50 - 60 Hz
  • Power consumption: 150 W
  • Power in/out: PowerCON compatible
  • Line inputs: 2
  • Line input connectors: 6.3 mm jack, XLR - combo
  • Line thru: 2
  • Line through connector: XLR

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