What we know about the measurement:

Edifier MR4 is an active bookshelves that cost around 130 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 79.1Hz (resp. 64.5Hz).
  • Reference level is normalised to -0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 3.26 and would be 6.01 with a perfect subwoofer.
      • Details: NBD: ON 0.511, LW 0.525, SP 0.518, PIR 0.509; SM: SP0.747, PIR0.485; LFQ 0.219, LFX 62Hz
    • Tonality (Preference) Score is 5.72 with an EQ and would be 8.33 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.304, LW 0.266, SP 0.304, PIR 0.26; SM: SP0.961, PIR0.943; LFQ 0.219, LFX 58Hz
  • Link to Original review.
Edifier MR4
AutomaticEQ (IIR)
Set preamp gain to: -3.6dB.
Type Freq Q Gain
3 41.0 0.39 2.59
3 102.0 1.88 2.48
3 144.0 2.13 -1.63
3 600.0 3.0 -1.39
3 3068.0 2.97 2.99
3 6361.0 2.85 1.73
3 12736.0 1.05 -4.11
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Edifier MR4 filters_auto_eq

AutomaticEQ

Edifier MR4 filters_eq_full

Target v.s. EQ

Edifier MR4
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.75
3 160.0 2.14 0.0
3 250.0 2.14 0.0
3 400.0 2.14 -0.25
3 630.0 2.14 -0.5
3 1000.0 2.14 -0.25
3 1600.0 2.14 -0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 0.0
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.75
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These EQ is designed for a 15 bands graphical EQ.

Edifier MR4
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.0
3 200.0 4.32 0.0
3 250.0 4.32 0.0
3 315.0 4.32 -0.25
3 400.0 4.32 -0.25
3 500.0 4.32 -0.25
3 630.0 4.32 -0.25
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 0.25
3 3150.0 4.32 0.5
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 -0.5
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.

Edifier MR4: comparison between EQs
Edifier MR4

Comparison betweens various EQs

Edifier MR4

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
Frequency Frequency with EQ
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