What we know about the measurement:

DB Audiotechnik M4 is a passive liveportable

  • Quality of the measurement data is medium.
  • Origin of the data is DB Audiotechnik.
  • Format of the data is a GLL file .
  • Sensitivity:
    • Sensitivity: 99.3dB (avg. 100Hz-1kHz for 2.83V estimated at 1m).
    • Sensitivity: 79.3dB computed at the measurement distance (10.0m) over the same frequency range.
  • -3dB (resp. -6db) point v.s. reference is at 122.0Hz (resp. 73.0Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 6.1dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.28 and would be 5.2 with a perfect subwoofer.
      • Details: NBD: ON 0.797, LW 0.711, SP 0.821, PIR 0.716; SM: SP0.865, PIR0.71; LFQ 2.448, LFX 68Hz
  • Vendor specifications:
    • Dispersion: 50° horizontal and 70° vertical.
    • Impedance 8 Ohm
    • SPL
      • peak: 140 dB
    • Size
      • Width 580mm
      • Height 363mm
      • Depth 505 mm)
    • Weight 20.0 kg
CEA2034
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
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