What we know about the measurement:

KRK Systems Classic 5 is an active bookshelves that cost around 150 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 60.1Hz (resp. 54.2Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 6.5dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.71 and would be 5.22 with a perfect subwoofer.
      • Details: NBD: ON 0.572, LW 0.546, SP 0.504, PIR 0.491; SM: SP0.589, PIR0.189; LFQ 0.688, LFX 55Hz
    • Tonality (Preference) Score is 5.34 with an EQ and would be 7.71 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.429, LW 0.403, SP 0.367, PIR 0.339; SM: SP0.954, PIR0.911; LFQ 0.688, LFX 51Hz
  • Link to Original review.
KRK Systems Classic 5
AutomaticEQ (IIR)
Set preamp gain to: -2.7dB.
Type Freq Q Gain
3 40.0 0.63 2.95
3 77.0 2.18 -2.93
3 454.0 2.09 -0.74
3 1083.0 3.0 2.95
3 2168.0 3.0 2.96
3 10341.0 0.26 -5.35
3 11085.0 1.39 2.96
Download

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

KRK Systems Classic 5 filters_auto_eq

AutomaticEQ

KRK Systems Classic 5 filters_eq_full

Target v.s. EQ

KRK Systems Classic 5
maiky76@ASR LW (IIR)
Set preamp gain to: -0.0dB.
Type Freq Q Gain
3 585.0 5.4 -0.67
3 4277.0 5.49 -0.5
3 5057.0 2.82 -2.25
3 7360.0 1.66 -2.06
3 17029.0 3.43 -2.94
Download

These EQ is designed by ASR member maiky76. These EQ optimise for a flat listening window and is a good start for near field listening like on your desk.

KRK Systems Classic 5
maiky76@ASR (IIR)
Set preamp gain to: -0.0dB.
Type Freq Q Gain
3 584.0 7.93 -1.0
3 2969.0 8.18 -0.74
3 4810.0 2.07 -3.34
3 7466.0 1.4 -3.06
3 15783.0 2.44 -3.37
Download

These EQ is designed by ASR member maiky76. These EQ optimise the Harman score and is a good start for far field listening like in your living room.

KRK Systems Classic 5
flipflop@ASR (IIR)
Set preamp gain to: -3.1dB.
Type Freq Q Gain
3 606.0 6.0 -1.6
3 652.0 15.0 2.7
3 742.0 12.0 0.9
3 871.0 5.5 -1.0
3 987.0 13.0 -2.0
3 1080.0 3.0 2.4
3 1380.0 3.2 -1.9
3 1570.0 14.0 1.2
3 1725.0 15.0 -0.5
3 1900.0 16.0 1.4
3 2215.0 12.0 3.7
3 2475.0 11.0 -2.0
3 2990.0 8.0 -1.2
3 4290.0 10.0 -0.8
3 4910.0 2.3 -3.0
3 7170.0 1.6 -2.9
3 9650.0 3.0 -1.0
3 12900.0 2.3 -1.3
3 16050.0 3.5 -1.2
6 19000.0 1.5772935127949521 -15.0
Download

These EQ is designed by ASR member flipflop.

KRK Systems Classic 5
Graphic EQ 15 bands
Set preamp gain to: -0.0dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 0.0
3 63.0 2.14 0.0
3 100.0 2.14 0.0
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 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 -0.25
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.75
3 10000.0 2.14 -0.5
3 16000.0 2.14 -0.75
Download

These EQ is designed for a 15 bands graphical EQ.

KRK Systems Classic 5
Graphic EQ 31 bands
Set preamp gain to: -0.2dB.
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 0.25
3 63.0 4.32 0.0
3 80.0 4.32 -0.25
3 100.0 4.32 0.0
3 125.0 4.32 0.0
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 -0.25
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 -0.25
3 2000.0 4.32 0.0
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.5
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.75
3 6300.0 4.32 -0.75
3 8000.0 4.32 -0.75
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.5
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.

KRK Systems Classic 5: comparison between EQs
KRK Systems Classic 5

Comparison betweens various EQs

KRK Systems Classic 5

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
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