Measurements for speaker Optimal Audio Cuboid 12

Optimal Audio Cuboid 12 is a passive bookshelves speaker that cost around 760USD each .

Quality of the measurement data is low .
Origin of the data is Optimal Audio.
Format of the data is a GLL file .
Sensitivity: 89.1dB (avg. 100Hz-1kHz for 2.83V measured at 10m)
-3dB (resp. -6db) point v.s. reference is at 45.0Hz (resp. 40.0Hz).
Reference level is normalised to -0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
Frequency deviation is 6.6dB 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°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
Tonality (Preference) Score
- Tonality (Preference) Score is 2.57 and would be 4.47 with a perfect subwoofer.
  - Details: NBD: ON 0.854, LW 0.78, SP 0.878, PIR 0.818; SM: SP0.716, PIR0.587; LFQ 1.046, LFX 40Hz
- Tonality (Preference) Score is 4.05 with an EQ and would be 5.72 with a perfect subwoofer and the same EQ.
  - Details: NBD: ON 0.739, LW 0.656, SP 0.734, PIR 0.676; SM: SP0.868, PIR0.822; LFQ 1.046, LFX 35Hz
Vendor specifications:
- Dispersion: 80° horizontal and 50° vertical.
- Sensitivity 98 dB
- Impedance 8 Ohm
- SPL
  - max: 123 dB
  - peak: 129 dB
- Size
  - Width 360mm
  - Height 575mm
  - Depth 392 mm)
- Weight 20.0 kg