What we know about the measurement:

Ascend Acoustics Sierra 1 V2 is a passive bookshelves speaker that cost around 1000USD for a pair .

  • Quality of the measurement data is high .
  • Origin of the data is Ascend Acoustics.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity: 81.2dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 53.0Hz (resp. 45.0Hz).
  • Reference level is normalised to -0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.7dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-80.0°, 80.0°) 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 6.7 and would be 8.65 with a perfect subwoofer.
      • Details: NBD: ON 0.309, LW 0.22, SP 0.21, PIR 0.17; SM: SP0.985, PIR0.97; LFQ 0.524, LFX 41Hz
    • Tonality (Preference) Score is 6.9 with an EQ and would be 8.62 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.281, LW 0.211, SP 0.244, PIR 0.187; SM: SP0.952, PIR0.95; LFQ 0.524, LFX 36Hz
  • Vendor specifications:
    • Sensitivity 87 dB
    • Impedance 8 Ohm
    • Size
      • Width 190mm
      • Height 362mm
      • Depth 267 mm)
    • Weight 8.4 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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