What we know about the measurement:

Yamaha VXL1-8 is a passive columns that cost around 500 USD each.

  • Quality of the measurement data is medium.
  • Origin of the data is Yamaha.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 22.4Hz (resp. 206.0Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.52 and would be 4.34 with a perfect subwoofer.
      • Details: NBD: ON 0.709, LW 0.686, SP 0.612, PIR 0.594; SM: SP0.285, PIR0.089; LFQ 10.0, LFX 194Hz
    • Tonality (Preference) Score is 4.96 with an EQ and would be 7.88 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.28, LW 0.272, SP 0.46, PIR 0.309; SM: SP0.868, PIR0.786; LFQ 0.407, LFX 68Hz
  • Vendor specifications:
    • Dispersion: 170° horizontal and 40° vertical.
    • Sensitivity 89 dB
    • Impedance 8 Ohm
    • SPL
      • peak: 111 dB
    • Size
      • Width 54mm
      • Height 480mm
      • Depth 104mm
    • Weight 2.1kg
Yamaha VXL1-8
AutomaticEQ (IIR)
Set preamp gain to: -6.0dB.
Type Freq Q Gain
PK 46.0 0.25 3.0
PK 54.0 0.25 3.0
PK 487.0 1.08 -3.8
PK 1161.0 2.67 -4.35
PK 2168.0 2.69 -5.28
PK 3289.0 1.08 -4.29
PK 8397.0 0.78 2.73
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
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