What we know about the measurement:

Martin Logan 5XW is a passive inwall that cost around 3000 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 74.7Hz (resp. 71.8Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Note: The tonality (Preference) score does not make sense for inwall speakers. Don't give too much credits to the value.
    • Tonality (Preference) Score is 2.27 and would be 5.34 with a perfect subwoofer.
      • Details: NBD: ON 0.75, LW 0.656, SP 0.61, PIR 0.621; SM: SP0.803, PIR0.597; LFQ 2.913, LFX 74Hz
    • Tonality (Preference) Score is 4.62 with an EQ and would be 7.76 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.414, LW 0.322, SP 0.364, PIR 0.301; SM: SP0.915, PIR0.868; LFQ 2.913, LFX 77Hz
  • Link to Original review.
Martin Logan 5XW
AutomaticEQ (IIR)
Set preamp gain to: -2.5dB.
Type Freq Q Gain
PK 138.0 1.28 -2.99
PK 404.0 1.63 2.86
PK 584.0 2.91 2.67
PK 1067.0 2.96 2.45
PK 1762.0 2.94 -2.77
PK 2302.0 2.12 2.98
PK 4492.0 2.69 -1.57
PK 8199.0 2.93 1.88
LS 11454.0 0.52 -1.42
Download

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

Martin Logan 5XW filters_auto_eq

AutomaticEQ

Martin Logan 5XW filters_eq_full

Target v.s. EQ

Martin Logan 5XW
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 -0.5
PK 160.0 2.14 -0.5
PK 250.0 2.14 0.0
PK 400.0 2.14 0.25
PK 630.0 2.14 0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 -0.25
PK 2500.0 2.14 0.0
PK 4000.0 2.14 -0.25
PK 6300.0 2.14 -0.25
PK 10000.0 2.14 0.0
PK 16000.0 2.14 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

Martin Logan 5XW
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.25
PK 63.0 4.32 0.25
PK 80.0 4.32 0.0
PK 100.0 4.32 -0.5
PK 125.0 4.32 -0.75
PK 160.0 4.32 -0.5
PK 200.0 4.32 -0.25
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.25
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.25
PK 1250.0 4.32 -0.25
PK 1600.0 4.32 -0.25
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.25
PK 4000.0 4.32 0.0
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 0.0
PK 10000.0 4.32 0.0
PK 12000.0 4.32 0.0
PK 16000.0 4.32 0.25
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Martin Logan 5XW: comparison between EQs
Martin Logan 5XW

Comparison betweens various EQs

Martin Logan 5XW

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
Frequency Frequency with EQ
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