What we know about the measurement:

Mackie HR824 is an active bookshelves

  • Quality of the measurement data is unknown.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 43.7Hz (resp. 35.5Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.54 and would be 7.99 with a perfect subwoofer.
      • Details: NBD: ON 0.212, LW 0.248, SP 0.366, PIR 0.277; SM: SP0.824, PIR0.721; LFQ 1.036, LFX 31Hz
    • Tonality (Preference) Score is 7.5 with an EQ and would be 8.82 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.157, LW 0.159, SP 0.322, PIR 0.215; SM: SP0.938, PIR0.938; LFQ 1.036, LFX 29Hz
  • Link to original Review: asr review. .
Mackie HR824
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
3 32.0 1.24 2.97
3 166.0 0.6 -1.89
3 600.0 2.95 -1.35
3 1083.0 2.96 0.67
3 6585.0 2.9 -0.33
3 8397.0 1.04 -2.12
3 15150.0 2.33 -2.88
Download

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

Mackie HR824 filters_auto_eq

AutomaticEQ

Mackie HR824 filters_eq_full

Target v.s. EQ

Mackie HR824
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
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 -0.25
3 160.0 2.14 -0.5
3 250.0 2.14 -0.25
3 400.0 2.14 -0.25
3 630.0 2.14 0.0
3 1000.0 2.14 0.5
3 1600.0 2.14 0.75
3 2500.0 2.14 0.25
3 4000.0 2.14 0.5
3 6300.0 2.14 0.25
3 10000.0 2.14 0.0
3 16000.0 2.14 -0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Mackie HR824
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.0
3 63.0 4.32 -0.25
3 80.0 4.32 -0.25
3 100.0 4.32 -0.25
3 125.0 4.32 -0.25
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 -0.25
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 0.25
3 1250.0 4.32 0.25
3 1600.0 4.32 0.25
3 2000.0 4.32 0.25
3 2500.0 4.32 0.0
3 3150.0 4.32 0.0
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 0.0
3 16000.0 4.32 -0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Mackie HR824: comparison between EQs
Mackie HR824

Comparison betweens various EQs

Mackie HR824

Improvements made by EQ

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