What we know about the measurement:

Martin Audio XP15 is an active liveportable

  • Quality of the measurement data is unknown.
  • Origin of the data is Martin Audio.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 54.5Hz (resp. 48.7Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.94 and would be 5.21 with a perfect subwoofer.
      • Details: NBD: ON 0.662, LW 0.605, SP 0.835, PIR 0.708; SM: SP0.694, PIR0.559; LFQ 1.823, LFX 48Hz
    • Tonality (Preference) Score is 4.56 with an EQ and would be 6.73 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.584, LW 0.489, SP 0.629, PIR 0.515; SM: SP0.912, PIR0.88; LFQ 1.768, LFX 46Hz
Martin Audio XP15
AutomaticEQ (IIR)
Set preamp gain to: -1.9dB.
Type Freq Q Gain
3 47.0 2.38 2.99
3 92.0 1.32 -5.23
3 356.0 1.36 0.86
3 560.0 2.95 -1.78
3 1823.0 1.76 1.77
3 5165.0 3.0 -2.03
3 11085.0 1.57 -5.56
Download

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

Martin Audio XP15 filters_auto_eq

AutomaticEQ

Martin Audio XP15 filters_eq_full

Target v.s. EQ

Martin Audio XP15
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.0
3 100.0 2.14 -0.75
3 160.0 2.14 -0.25
3 250.0 2.14 0.0
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 0.75
3 2500.0 2.14 0.25
3 4000.0 2.14 0.5
3 6300.0 2.14 0.25
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Martin Audio XP15
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
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 0.0
3 80.0 4.32 -0.5
3 100.0 4.32 -0.5
3 125.0 4.32 -0.25
3 160.0 4.32 -0.25
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 0.0
3 630.0 4.32 0.25
3 800.0 4.32 0.0
3 1000.0 4.32 0.25
3 1250.0 4.32 0.25
3 1600.0 4.32 0.5
3 2000.0 4.32 0.5
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 0.25
3 10000.0 4.32 -0.25
3 12000.0 4.32 -0.25
3 16000.0 4.32 0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Martin Audio XP15: comparison between EQs
Martin Audio XP15

Comparison betweens various EQs

Martin Audio XP15

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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