DAD MA Series Passive Subwoofer

Key Features
  • Passive subwoofer
  • 18"
Product Code:

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Key Features
  • Passive subwoofer
  • 18"

The Dynamic Audio Device (DAD) MA Series Passive Subwoofer is an aerodynamic bass-reflex passive subwoofer, 1700W AES, 134dB SPL.


  • Long-excursion 18″Nd woofer with 4.5″ voice coil
  • Impedance: 8Ohm
  • Recommended amplifier: up to 3400W RMS/8Ohm
  • Sensitivity: 97dB @1W/1m
  • Frequency response: 35-120Hz (±3dB)
  • External LPF recommended range: 80Hz to 150Hz
  • Cabinet made of 18mm multilayer birch plywood, reinforced with steel strengthening
  • 18″ Nd woofer in bass-reflex with aerodynamic profile. Configuration for extension of response to lowest octaves and max control over diaphragm
  • Built-in mechanics for stacking of DAD HDA500 & MA line-array systems
  • Ready to fit optional hardware for transportation
  • 35mm pole-mount adapter for stands
  • Neutrik NL-4 Speakon in/out


  • Subwoofer delivering extended frequency response
  • High pressure on low frequencies in large indoor/outdoor venues
  • Sound reinforcement in live applications, theatres of permanent installations
  • Subwoofer section of multi-amplified sound systems, combined with DAD HDA500 & MA line-array modules
  • DSP presets for selection of optimal frequency response according to application

Product Information

Product Code
MA Series Passive Subwoofer