What we know about the measurement:

Neumann KH 120A is an active bookshelves that cost around 2500 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is Neumann.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 51.5Hz (resp. 48.7Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.5dB 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°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.43 and would be 7.75 with a perfect subwoofer.
      • Details: NBD: ON 0.295, LW 0.288, SP 0.405, PIR 0.342; SM: SP0.902, PIR0.788; LFQ 0.558, LFX 49Hz
    • Tonality (Preference) Score is 6.18 with an EQ and would be 8.35 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.261, LW 0.239, SP 0.355, PIR 0.282; SM: SP0.956, PIR0.932; LFQ 0.71, LFX 46Hz
  • Note: data from GLL file: computed at 2m with pink noise broadband.
Neumann KH 120A
AutomaticEQ (IIR)
Set preamp gain to: -1.4dB.
Type Freq Q Gain
3 29.0 0.36 1.36
3 178.0 2.89 0.55
3 2765.0 2.87 2.76
3 3068.0 3.0 -3.36
3 5732.0 2.98 1.0
3 8110.0 0.82 -1.71
3 14633.0 1.71 -1.01
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Neumann KH 120A filters_auto_eq

AutomaticEQ

Neumann KH 120A filters_eq_full

Target v.s. EQ

Neumann KH 120A
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
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 -0.25
3 400.0 2.14 -0.25
3 630.0 2.14 -0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.0
3 2500.0 2.14 0.25
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.25
3 10000.0 2.14 -0.5
3 16000.0 2.14 -0.25
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These EQ is designed for a 15 bands graphical EQ.

Neumann KH 120A
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
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 0.0
3 80.0 4.32 0.0
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 -0.25
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 -0.25
3 1000.0 4.32 -0.25
3 1250.0 4.32 0.0
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 0.0
3 3150.0 4.32 -0.5
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.5
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.

Neumann KH 120A: comparison between EQs
Neumann KH 120A

Comparison betweens various EQs

Neumann KH 120A

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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