What we know about the measurement:

L-Acoustics 108P is an active liveportable that cost around 7400 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is L-Acoustics.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 71.0Hz (resp. 61.5Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.4dB 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 4.68 and would be 7.38 with a perfect subwoofer.
      • Details: NBD: ON 0.346, LW 0.383, SP 0.483, PIR 0.41; SM: SP0.885, PIR0.771; LFQ 0.964, LFX 61Hz
    • Tonality (Preference) Score is 6.02 with an EQ and would be 8.55 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.205, LW 0.195, SP 0.361, PIR 0.266; SM: SP0.968, PIR0.938; LFQ 0.964, LFX 56Hz
L-Acoustics 108P
AutomaticEQ (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
5 71.0 1.06 2.93
3 309.0 2.4 2.56
3 404.0 0.59 -1.74
3 529.0 2.75 2.98
3 933.0 2.71 1.24
3 1594.0 2.79 1.34
3 3555.0 1.53 -0.56
3 6069.0 2.91 -2.28
6 11454.0 0.7 -1.91
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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 108P filters_auto_eq

AutomaticEQ

L-Acoustics 108P filters_eq_full

Target v.s. EQ

L-Acoustics 108P
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
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 0.0
3 160.0 2.14 0.0
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 0.25
3 1000.0 2.14 0.25
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.25
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.25
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These EQ is designed for a 15 bands graphical EQ.

L-Acoustics 108P
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
3 63.0 4.32 0.5
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 0.0
3 250.0 4.32 0.0
3 315.0 4.32 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.5
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 0.0
3 1600.0 4.32 0.5
3 2000.0 4.32 0.25
3 2500.0 4.32 0.25
3 3150.0 4.32 0.0
3 4000.0 4.32 0.25
3 5000.0 4.32 0.25
3 6300.0 4.32 0.0
3 8000.0 4.32 0.5
3 10000.0 4.32 0.0
3 12000.0 4.32 0.25
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 108P: comparison between EQs
L-Acoustics 108P

Comparison betweens various EQs

L-Acoustics 108P

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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