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
PK 32.0 1.24 2.97
PK 166.0 0.6 -1.89
PK 600.0 2.95 -1.35
PK 1083.0 2.96 0.67
PK 6585.0 2.9 -0.33
PK 8397.0 1.04 -2.12
PK 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
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 -0.25
PK 100.0 2.14 -0.25
PK 160.0 2.14 -0.5
PK 250.0 2.14 -0.25
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.5
PK 1600.0 2.14 0.75
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.5
PK 6300.0 2.14 0.25
PK 10000.0 2.14 0.0
PK 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
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.0
PK 63.0 4.32 -0.25
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.25
PK 125.0 4.32 -0.25
PK 160.0 4.32 -0.5
PK 200.0 4.32 -0.25
PK 250.0 4.32 -0.25
PK 315.0 4.32 -0.25
PK 400.0 4.32 -0.25
PK 500.0 4.32 -0.25
PK 630.0 4.32 -0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.25
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.25
PK 2000.0 4.32 0.25
PK 2500.0 4.32 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.0
PK 5000.0 4.32 0.0
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 0.0
PK 16000.0 4.32 -0.5
PK 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
Frequency Frequency with EQ
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