What we know about the measurement:

Yamaha VXS3F is a passive bookshelves that cost around 284 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is Yamaha.
  • Format of the data is a GLL file .
  • Sensitivity:
    • Sensitivity: 72.5dB (avg. 100Hz-1kHz for 2.83V estimated at 1m).
    • Sensitivity: 52.5dB computed at the measurement distance (10.0m) over the same frequency range.
  • -3dB (resp. -6db) point v.s. reference is at 218.0Hz (resp. 175.0Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.8dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.17 and would be 4.43 with a perfect subwoofer.
      • Details: NBD: ON 0.656, LW 0.653, SP 0.695, PIR 0.627; SM: SP0.056, PIR0.114; LFQ 0.058, LFX 170Hz
    • Tonality (Preference) Score is 1.94 with an EQ and would be 6.07 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.38, LW 0.377, SP 0.583, PIR 0.449; SM: SP0.557, PIR0.295; LFQ 0.062, LFX 132Hz
  • Vendor specifications:
    • Dispersion: 75° horizontal and 80° vertical.
    • Sensitivity 86 dB
    • Impedance 8 Ohm
    • SPL
      • peak: 105 dB
    • Size
      • Width 184mm
      • Height 130mm
      • Depth 94 mm)
    • Weight 1.0 kg
Yamaha VXS3F
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
3 109.0 0.77 3.0
3 560.0 1.31 1.68
3 1429.0 2.2 0.72
3 2324.0 2.27 -3.66
3 4194.0 1.36 -2.73
3 9001.0 2.87 -5.29
3 15685.0 0.57 -5.03
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Yamaha VXS3F filters_auto_eq

AutomaticEQ

Yamaha VXS3F filters_eq_full

Target v.s. 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
Frequency Frequency with EQ
Frequency Frequency with EQ
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