What we know about the measurement:

QSC K8.2 is an active liveportable that cost around 740 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is QSC.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 58.0Hz (resp. 54.5Hz).
  • Reference level is normalised to -0.2dB 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 5.8 and would be 8.28 with a perfect subwoofer.
      • Details: NBD: ON 0.226, LW 0.197, SP 0.295, PIR 0.234; SM: SP0.867, PIR0.804; LFQ 0.066, LFX 54Hz
    • Tonality (Preference) Score is 6.83 with an EQ and would be 9.2 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.107, LW 0.089, SP 0.198, PIR 0.128; SM: SP0.931, PIR0.938; LFQ 0.066, LFX 51Hz
  • Note: Data provided by QSC is of good quality but highly smoothed.
QSC K8.2
AutomaticEQ (IIR)
Set preamp gain to: -2.3dB.
Type Freq Q Gain
PK 56.0 2.83 2.99
PK 98.0 1.31 -3.86
PK 279.0 2.68 -0.57
PK 849.0 1.25 -1.49
PK 3068.0 0.33 1.68
PK 8694.0 0.65 -4.82
PK 16239.0 0.27 2.97
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
QSC K8.2
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.0
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 -0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.25
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.25
PK 6300.0 2.14 0.0
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 0.5
Download
This EQ is designed for a 15 bands graphical EQ.
QSC K8.2
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 0.25
PK 63.0 4.32 0.0
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.5
PK 125.0 4.32 -0.5
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 0.0
PK 500.0 4.32 0.0
PK 630.0 4.32 0.0
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.25
PK 2000.0 4.32 0.25
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.25
PK 4000.0 4.32 0.25
PK 5000.0 4.32 0.0
PK 6300.0 4.32 0.0
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 0.0
PK 12000.0 4.32 0.0
PK 16000.0 4.32 0.25
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
QSC K8.2: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
;