What we know about the measurement:

Micca MB42X Mark III is a passive bookshelves that cost around 80 USD for a pair.

  • Quality of the measurement data is unknown.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is a scanned image .
  • Sensitivity: 81.6dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 100.9Hz (resp. 80.3Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.99 and would be 5.22 with a perfect subwoofer.
      • Details: NBD: ON 0.541, LW 0.39, SP 0.402, PIR 0.379; SM: SP0.236, PIR0.007; LFQ 0.629, LFX 81Hz
    • Tonality (Preference) Score is 5.6 with an EQ and would be 8.08 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.371, LW 0.274, SP 0.38, PIR 0.301; SM: SP0.957, PIR0.958; LFQ 0.551, LFX 54Hz
  • Link to Original review.
Micca MB42X Mark III
AutomaticEQ (IIR)
Set preamp gain to: -5.4dB.
Type Freq Q Gain
3 54.0 2.88 3.0
3 102.0 0.25 2.58
3 299.0 1.3 2.94
3 1480.0 1.94 -3.02
3 3289.0 2.46 -2.25
3 6818.0 1.26 -4.48
3 7566.0 2.77 2.01
Download

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

Micca MB42X Mark III filters_auto_eq

AutomaticEQ

Micca MB42X Mark III filters_eq_full

Target v.s. EQ

Micca MB42X Mark III
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
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 0.5
3 160.0 2.14 0.5
3 250.0 2.14 0.75
3 400.0 2.14 0.5
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 -0.5
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.5
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.

Micca MB42X Mark III
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
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 0.5
3 100.0 4.32 0.5
3 125.0 4.32 0.25
3 160.0 4.32 0.5
3 200.0 4.32 0.5
3 250.0 4.32 0.75
3 315.0 4.32 0.75
3 400.0 4.32 0.5
3 500.0 4.32 0.25
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 -0.5
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 -0.5
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.5
3 6300.0 4.32 -0.5
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.25
3 12000.0 4.32 0.0
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.

Micca MB42X Mark III: comparison between EQs
Micca MB42X Mark III

Comparison betweens various EQs

Micca MB42X Mark III

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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