What we know about the measurement:

Kling Freitag PIA M is an active columns that cost around 6780 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is Kling Freitag.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 95.0Hz (resp. 87.5Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.7dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.6 and would be 8.02 with a perfect subwoofer.
      • Details: NBD: ON 0.295, LW 0.27, SP 0.413, PIR 0.314; SM: SP0.898, PIR0.869; LFQ 2.15, LFX 89Hz
    • Tonality (Preference) Score is 5.37 with an EQ and would be 8.63 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.206, LW 0.202, SP 0.325, PIR 0.238; SM: SP0.946, PIR0.937; LFQ 2.15, LFX 82Hz
  • Note: generated from GLL file provided by Kling Freitag, configuration bass reflex with wide mode on.
Kling Freitag PIA M
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
PK 83.0 2.77 2.99
PK 117.0 2.41 -0.59
PK 454.0 2.2 0.53
PK 1046.0 2.51 0.43
PK 2491.0 2.98 -1.39
PK 4818.0 2.95 1.49
PK 11085.0 0.98 -0.89
Download

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

Kling Freitag PIA M filters_auto_eq

AutomaticEQ

Kling Freitag PIA M filters_eq_full

Target v.s. EQ

Kling Freitag PIA M
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
PK 25.0 2.14 0.75
PK 40.0 2.14 0.75
PK 63.0 2.14 0.75
PK 100.0 2.14 0.5
PK 160.0 2.14 0.25
PK 250.0 2.14 0.25
PK 400.0 2.14 0.5
PK 630.0 2.14 0.5
PK 1000.0 2.14 0.5
PK 1600.0 2.14 0.25
PK 2500.0 2.14 0.0
PK 4000.0 2.14 0.5
PK 6300.0 2.14 0.5
PK 10000.0 2.14 0.25
PK 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Kling Freitag PIA M
Graphic EQ 31 bands
Set preamp gain to: -1.2dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.75
PK 31.0 4.32 0.75
PK 40.0 4.32 0.75
PK 50.0 4.32 0.75
PK 63.0 4.32 0.75
PK 80.0 4.32 0.75
PK 100.0 4.32 0.5
PK 125.0 4.32 0.25
PK 160.0 4.32 0.25
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 0.5
PK 500.0 4.32 0.5
PK 630.0 4.32 0.5
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.5
PK 1250.0 4.32 0.5
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 0.5
PK 4000.0 4.32 0.5
PK 5000.0 4.32 0.5
PK 6300.0 4.32 0.5
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 0.25
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Kling Freitag PIA M: comparison between EQs
Kling Freitag PIA M

Comparison betweens various EQs

Kling Freitag PIA M

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
Frequency Frequency with EQ
;