What we know about the measurement:

Midiplus MI3 II is an active bookshelves that cost around 139 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is Misc.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 66.7Hz (resp. 62.3Hz).
  • Reference level is normalised to 0.7dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 0.89 and would be 3.75 with a perfect subwoofer.
      • Details: NBD: ON 0.938, LW 0.852, SP 0.729, PIR 0.671; SM: SP0.444, PIR0.176; LFQ 0.166, LFX 66Hz
    • Tonality (Preference) Score is 4.44 with an EQ and would be 7.3 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.603, LW 0.475, SP 0.365, PIR 0.276; SM: SP0.851, PIR0.838; LFQ 0.166, LFX 66Hz
  • Vendor specifications:
    • SPL
      • peak: 98 dB
    • Size
      • Width 119mm
      • Height 152mm
      • Depth 165mm
    • Weight 1.77kg
Midiplus MI3 II
AutomaticEQ (IIR)
Set preamp gain to: -1.8dB.
Type Freq Q Gain
PK 95.0 1.82 -3.31
PK 149.0 1.18 -7.53
PK 560.0 0.25 1.94
PK 579.0 2.28 -2.02
PK 1381.0 0.52 2.98
PK 1429.0 2.41 -7.21
PK 5732.0 0.47 -7.32
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
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)
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