What we know about the measurement:

Meyer Sound MM-4XP is an active liveportable that cost around 1180 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 159.7Hz (resp. 139.2Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -1.18 and would be 3.04 with a perfect subwoofer.
      • Details: NBD: ON 1.004, LW 0.91, SP 0.766, PIR 0.802; SM: SP0.422, PIR0.114; LFQ 0.499, LFX 139Hz
    • Tonality (Preference) Score is 0.79 with an EQ and would be 4.7 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.838, LW 0.755, SP 0.624, PIR 0.651; SM: SP0.638, PIR0.456; LFQ 0.381, LFX 117Hz
  • Link to original Review: asr review. .
  • Vendor specifications:
    • Dispersion: 40° horizontal and 40° vertical.
    • SPL
      • peak: 111 dB
      • m_noise: 111.5 dB
      • pink_noise: 109 dB
      • b_noise: 111 dB
    • Size
      • Width 102.5mm
      • Height 102.5mm
      • Depth 145.4mm
    • Weight 1.9kg
Meyer Sound MM-4XP
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 113.0 0.71 3.0
PK 197.0 2.58 -2.17
PK 252.0 1.51 -2.4
PK 260.0 0.47 0.88
PK 820.0 3.0 1.5
PK 1700.0 3.0 3.0
PK 6144.0 0.25 -3.43
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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