What we know about the measurement:

Optimal Audio Cuboid 15 is a passive bookshelves speaker that cost around 1035USD each .

  • Quality of the measurement data is low .
  • Origin of the data is Optimal Audio.
  • Format of the data is a GLL file .
  • Sensitivity: 111.0dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (10m) over the same frequency range: 91.0dB.
  • -3dB (resp. -6db) point v.s. reference is at 45.0Hz (resp. 38.7Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.8dB 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°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.12 and would be 3.9 with a perfect subwoofer.
      • Details: NBD: ON 0.843, LW 0.848, SP 0.89, PIR 0.858; SM: SP0.595, PIR0.381; LFQ 1.358, LFX 37Hz
    • Tonality (Preference) Score is 5.11 with an EQ and would be 6.57 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.573, LW 0.561, SP 0.621, PIR 0.59; SM: SP0.92, PIR0.896; LFQ 1.172, LFX 31Hz
  • Vendor specifications:
    • Dispersion: 80° horizontal and 50° vertical.
    • Sensitivity 99 dB
    • Impedance 8 Ohm
    • SPL
      • max: 126 dB
      • peak: 132 dB
    • Size
      • Width 626mm
      • Height 691mm
      • Depth 416 mm)
    • Weight 28.0 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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