What we know about the measurement:

Alcons Audio QRP40 is a passive columns speaker .

  • Quality of the measurement data is high .
  • Origin of the data is Alcons Audio.
  • Format of the data is a GLL file .
  • Sensitivity: 107.4dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (10m) over the same frequency range: 87.4dB.
  • -3dB (resp. -6db) point v.s. reference is at 73.0Hz (resp. 69.0Hz).
  • Reference level is normalised to -0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.2dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.57 and would be 7.44 with a perfect subwoofer.
      • Details: NBD: ON 0.369, LW 0.392, SP 0.531, PIR 0.45; SM: SP0.911, PIR0.872; LFQ 1.347, LFX 67Hz
    • Tonality (Preference) Score is 5.37 with an EQ and would be 8.39 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.243, LW 0.233, SP 0.369, PIR 0.26; SM: SP0.952, PIR0.905; LFQ 1.713, LFX 73Hz
  • Vendor specifications:
    • Dispersion: 90° horizontal and 40° vertical.
    • Sensitivity 103 dB
    • Impedance 4 Ohm
    • SPL
      • peak: 131 dB
    • Size
      • Width 161mm
      • Height 1118mm
      • Depth 236 mm)
    • Weight 22 kg
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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