What we know about the measurement:

Bowers & Wilkins CWM7.3 S2 is a passive inwall that cost around 2100 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 .
  • Sensitivity: 90.4dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 63.0Hz (resp. 54.2Hz).
  • Reference level is normalised to -0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 6.9dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-10.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • 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 3.36 and would be 5.88 with a perfect subwoofer.
      • Details: NBD: ON 0.749, LW 0.592, SP 0.386, PIR 0.434; SM: SP0.8, PIR0.586; LFQ 0.305, LFX 55Hz
    • Tonality (Preference) Score is 5.96 with an EQ and would be 8.03 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.471, LW 0.324, SP 0.274, PIR 0.208; SM: SP0.849, PIR0.926; LFQ 0.251, LFX 43Hz
  • Link to Original review.
Bowers & Wilkins CWM7.3 S2
AutomaticEQ (IIR)
Set preamp gain to: -3.8dB.
Type Freq Q Gain
3 42.0 1.3 3.0
3 65.0 0.67 2.99
3 117.0 1.03 -8.99
3 1480.0 1.63 -2.02
3 2862.0 1.66 3.0
3 6818.0 1.37 -3.74
3 12301.0 1.12 -3.3
Download

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

Bowers & Wilkins CWM7.3 S2 filters_auto_eq

AutomaticEQ

Bowers & Wilkins CWM7.3 S2 filters_eq_full

Target v.s. EQ

Bowers & Wilkins CWM7.3 S2
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 -0.75
3 160.0 2.14 -0.75
3 250.0 2.14 -0.25
3 400.0 2.14 -0.25
3 630.0 2.14 -0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.0
3 2500.0 2.14 0.75
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.5
3 16000.0 2.14 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

Bowers & Wilkins CWM7.3 S2
Graphic EQ 31 bands
Set preamp gain to: -0.9dB.
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 -0.75
3 125.0 4.32 -1.0
3 160.0 4.32 -0.75
3 200.0 4.32 -0.5
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 0.0
3 630.0 4.32 0.0
3 800.0 4.32 0.0
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 0.25
3 2500.0 4.32 0.75
3 3150.0 4.32 0.75
3 4000.0 4.32 0.0
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 0.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Bowers & Wilkins CWM7.3 S2: comparison between EQs
Bowers & Wilkins CWM7.3 S2

Comparison betweens various EQs

Bowers & Wilkins CWM7.3 S2

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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