What we know about the measurement:

Yamaha VXL1-24 is a passive columns that cost around 1340 USD each.

  • Quality of the measurement data is medium.
  • Origin of the data is Yamaha.
  • Format of the data is a GLL file .
  • Sensitivity: 107.9dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (10m) over the same frequency range: 87.9dB.
  • -3dB (resp. -6db) point v.s. reference is at 272.0Hz (resp. 200.0Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.8dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -1.0 and would be 4.02 with a perfect subwoofer.
      • Details: NBD: ON 0.799, LW 0.677, SP 0.505, PIR 0.572; SM: SP0.14, PIR0.017; LFQ 10.0, LFX 212Hz
    • Tonality (Preference) Score is 2.08 with an EQ and would be 5.91 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.655, LW 0.534, SP 0.407, PIR 0.445; SM: SP0.647, PIR0.513; LFQ 2.859, LFX 111Hz
  • Vendor specifications:
    • Dispersion: 180° horizontal and 25° vertical.
    • Sensitivity 91 dB
    • Impedance 8 Ohm
    • SPL
      • peak: 117 dB
    • Size
      • Width 54mm
      • Height 1212mm
      • Depth 104 mm)
    • Weight 5.5 kg
Yamaha VXL1-24
AutomaticEQ (IIR)
Set preamp gain to: -8.5dB.
Type Freq Q Gain
5 272.0 0.76 3.0
3 272.0 1.08 -1.71
3 272.0 0.25 3.0
3 272.0 1.05 -2.09
3 272.0 0.25 3.0
3 462.0 0.99 -2.98
3 1103.0 2.75 0.93
3 1704.0 0.29 -3.0
5 16000.0 0.9 1.79
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Yamaha VXL1-24 filters_auto_eq

AutomaticEQ

Yamaha VXL1-24 filters_eq_full

Target v.s. EQ

Yamaha VXL1-24
Graphic EQ 15 bands
Set preamp gain to: -1.8dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.5
3 100.0 2.14 0.5
3 160.0 2.14 0.5
3 250.0 2.14 0.5
3 400.0 2.14 0.25
3 630.0 2.14 0.25
3 1000.0 2.14 0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 0.0
3 6300.0 2.14 0.5
3 10000.0 2.14 1.0
3 16000.0 2.14 1.75
Download

These EQ is designed for a 15 bands graphical EQ.

Yamaha VXL1-24
Graphic EQ 31 bands
Set preamp gain to: -1.5dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.25
3 80.0 4.32 0.25
3 100.0 4.32 0.25
3 125.0 4.32 0.25
3 160.0 4.32 0.25
3 200.0 4.32 0.25
3 250.0 4.32 0.25
3 315.0 4.32 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 0.25
3 800.0 4.32 0.25
3 1000.0 4.32 0.25
3 1250.0 4.32 0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 0.0
3 3150.0 4.32 0.0
3 4000.0 4.32 0.25
3 5000.0 4.32 0.5
3 6300.0 4.32 0.5
3 8000.0 4.32 1.25
3 10000.0 4.32 1.0
3 12000.0 4.32 0.5
3 16000.0 4.32 1.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Yamaha VXL1-24: comparison between EQs
Yamaha VXL1-24

Comparison betweens various EQs

Yamaha VXL1-24

Improvements made by 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
;