What we know about the measurement:

Mackie CR3-X is an active bookshelves that cost around 100 USD each.

  • 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 74.7Hz (resp. 68.8Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.4dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.14 and would be 5.05 with a perfect subwoofer.
      • Details: NBD: ON 0.659, LW 0.549, SP 0.459, PIR 0.456; SM: SP0.543, PIR0.162; LFQ 0.224, LFX 68Hz
    • Tonality (Preference) Score is 5.12 with an EQ and would be 8.0 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.456, LW 0.339, SP 0.32, PIR 0.221; SM: SP0.914, PIR0.912; LFQ 0.24, LFX 67Hz
  • Link to original Review: eac review. Links to other reviews: asr review .
Mackie CR3-X
AutomaticEQ (IIR)
Set preamp gain to: -1.7dB.
Type Freq Q Gain
3 72.0 2.92 3.0
3 105.0 0.94 -6.29
3 689.0 0.27 2.46
3 2406.0 0.8 -4.65
3 5934.0 2.95 -1.61
3 9001.0 3.0 -2.62
3 15685.0 0.73 -6.81
Download

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

Mackie CR3-X filters_auto_eq

AutomaticEQ

Mackie CR3-X filters_eq_full

Target v.s. EQ

Mackie CR3-X
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 -0.75
3 160.0 2.14 -0.5
3 250.0 2.14 0.0
3 400.0 2.14 0.25
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 -0.25
3 2500.0 2.14 -0.5
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.75
3 16000.0 2.14 -1.0
Download

These EQ is designed for a 15 bands graphical EQ.

Mackie CR3-X
Graphic EQ 31 bands
Set preamp gain to: -0.0dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.0
3 31.0 4.32 0.0
3 40.0 4.32 0.0
3 50.0 4.32 0.0
3 63.0 4.32 0.0
3 80.0 4.32 -0.25
3 100.0 4.32 -0.5
3 125.0 4.32 -0.5
3 160.0 4.32 -0.5
3 200.0 4.32 -0.25
3 250.0 4.32 -0.25
3 315.0 4.32 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
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 0.0
3 1600.0 4.32 -0.5
3 2000.0 4.32 -0.75
3 2500.0 4.32 -0.75
3 3150.0 4.32 -0.75
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 -0.75
3 10000.0 4.32 -0.75
3 12000.0 4.32 -0.75
3 16000.0 4.32 -0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Mackie CR3-X: comparison between EQs
Mackie CR3-X

Comparison betweens various EQs

Mackie CR3-X

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
;