What we know about the measurement:

KEF Q250 is a passive center that cost around 600 USD

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 90.8Hz (resp. 63.0Hz).
  • Reference level is normalised to -0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.23 and would be 6.98 with a perfect subwoofer.
      • Details: NBD: ON 0.468, LW 0.357, SP 0.386, PIR 0.35; SM: SP0.841, PIR0.655; LFQ 0.958, LFX 62Hz
    • Tonality (Preference) Score is 5.49 with an EQ and would be 8.1 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.385, LW 0.28, SP 0.289, PIR 0.245; SM: SP0.96, PIR0.911; LFQ 0.958, LFX 58Hz
  • Vertical measurement
  • Link to original Review: eac review. Links to other reviews: yt review .
KEF Q250
AutomaticEQ (IIR)
Set preamp gain to: -3.2dB.
Type Freq Q Gain
LS 117.0 1.15 2.99
PK 432.0 0.96 -1.45
PK 565.0 1.59 1.42
PK 1442.0 2.96 2.48
PK 1762.0 2.86 -1.65
PK 2631.0 2.7 2.82
PK 4064.0 2.32 2.18
PK 6069.0 1.38 0.58
PK 13092.0 0.59 -0.52
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
KEF Q250
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 0.0
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 0.0
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 -0.5
PK 16000.0 2.14 -0.5
Download
This EQ is designed for a 15 bands graphical EQ.
KEF Q250
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 0.0
PK 200.0 4.32 0.0
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 0.0
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 0.0
PK 2000.0 4.32 0.0
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 -0.5
PK 12000.0 4.32 -0.5
PK 16000.0 4.32 -0.5
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)
KEF Q250: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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