What we know about the measurement:

M-Audio BX4 D3 is an active bookshelves that cost around 120 USD each.

  • Quality of the measurement data is medium.
  • Origin of the data is Misc.
  • Format of the data is .
  • -3dB (resp. -6db) point v.s. reference is at 67.3Hz (resp. 63.5Hz).
  • Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.49 and would be 5.23 with a perfect subwoofer.
      • Details: NBD: ON 0.618, LW 0.546, SP 0.499, PIR 0.513; SM: SP0.819, PIR0.268; LFQ 0.24, LFX 62Hz
    • Tonality (Preference) Score is 4.55 with an EQ and would be 7.12 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.509, LW 0.437, SP 0.474, PIR 0.428; SM: SP0.924, PIR0.859; LFQ 0.24, LFX 57Hz
  • Link to original Review: asr review. .
M-Audio BX4 D3
AutomaticEQ (IIR)
Set preamp gain to: -8.2dB.
Type Freq Q Gain
PK 84.0 1.12 2.99
PK 187.0 0.26 2.94
PK 229.0 1.63 -2.54
PK 547.0 2.37 -2.64
PK 1220.0 1.7 -2.2
PK 1541.0 2.29 2.8
PK 2014.0 2.5 -2.95
PK 3110.0 0.78 -2.71
LS 4803.0 1.26 2.99
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
M-Audio BX4 D3
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
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 0.25
PK 160.0 2.14 0.25
PK 250.0 2.14 0.0
PK 400.0 2.14 0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 -0.75
PK 4000.0 2.14 -0.5
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 -0.5
Download
This EQ is designed for a 15 bands graphical EQ.
M-Audio BX4 D3
Graphic EQ 31 bands
Set preamp gain to: -0.6dB.
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 -0.5
PK 100.0 4.32 0.25
PK 125.0 4.32 0.25
PK 160.0 4.32 0.25
PK 200.0 4.32 0.25
PK 250.0 4.32 0.25
PK 315.0 4.32 0.25
PK 400.0 4.32 0.5
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.0
PK 1250.0 4.32 -0.25
PK 1600.0 4.32 0.25
PK 2000.0 4.32 -0.5
PK 2500.0 4.32 -0.5
PK 3150.0 4.32 -0.5
PK 4000.0 4.32 -0.25
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 0.0
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
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
M-Audio BX4 D3: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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