What we know about the measurement:

LD Systems DDQ12+Sub is an active liveportable speaker that cost around 3000USD each .

  • Quality of the measurement data is medium .
  • Origin of the data is LD Systems.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 38.7Hz (resp. 36.5Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.8dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.84 and would be 6.52 with a perfect subwoofer.
      • Details: NBD: ON 0.644, LW 0.52, SP 0.524, PIR 0.478; SM: SP0.871, PIR0.806; LFQ 1.426, LFX 35Hz
    • Tonality (Preference) Score is 6.02 with an EQ and would be 7.42 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.503, LW 0.404, SP 0.491, PIR 0.384; SM: SP0.943, PIR0.924; LFQ 1.241, LFX 30Hz
  • Note: measured with broadband noise at 2m. DUT is a DDQ12 with a DDQ Sub 212. It is unclear to me if the measurements are correct
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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