What we know about the measurement:

L-Acoustics X8 is a passive liveportable

  • Quality of the measurement data is medium.
  • Origin of the data is L-Acoustics.
  • Format of the data is a GLL file .
  • Sensitivity:
    • Sensitivity: 94.3dB (avg. 100Hz-1kHz for 2.83V estimated at 1m).
    • Sensitivity: 74.3dB computed at the measurement distance (10.0m) over the same frequency range.
  • -3dB (resp. -6db) point v.s. reference is at 71.0Hz (resp. 65.0Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.04 and would be 6.85 with a perfect subwoofer.
      • Details: NBD: ON 0.324, LW 0.363, SP 0.46, PIR 0.402; SM: SP0.749, PIR0.51; LFQ 1.167, LFX 64Hz
    • Tonality (Preference) Score is 6.06 with an EQ and would be 8.77 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.209, LW 0.191, SP 0.273, PIR 0.194; SM: SP0.957, PIR0.945; LFQ 1.167, LFX 61Hz
L-Acoustics X8
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
3 62.0 2.81 2.75
3 395.0 3.0 1.02
3 714.0 2.98 1.02
3 2491.0 2.16 -1.1
3 6144.0 2.73 -1.26
3 9648.0 2.3 -6.47
3 16239.0 0.25 2.26
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

L-Acoustics X8 filters_auto_eq

AutomaticEQ

L-Acoustics X8 filters_eq_full

Target v.s. EQ

L-Acoustics X8
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.0
3 160.0 2.14 0.25
3 250.0 2.14 0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.5
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 0.25
3 6300.0 2.14 0.0
3 10000.0 2.14 -1.0
3 16000.0 2.14 0.5
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These EQ is designed for a 15 bands graphical EQ.

L-Acoustics X8
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.25
3 100.0 4.32 0.0
3 125.0 4.32 0.0
3 160.0 4.32 0.0
3 200.0 4.32 0.25
3 250.0 4.32 0.25
3 315.0 4.32 0.0
3 400.0 4.32 0.25
3 500.0 4.32 0.0
3 630.0 4.32 0.25
3 800.0 4.32 0.25
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 0.25
3 5000.0 4.32 0.0
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.5
3 10000.0 4.32 -1.0
3 12000.0 4.32 0.0
3 16000.0 4.32 0.5
3 20000.0 4.32 0.0
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These EQ is designed for a 31 bands graphical EQ.

L-Acoustics X8: comparison between EQs
L-Acoustics X8

Comparison betweens various EQs

L-Acoustics X8

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
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