What we know about the measurement:

KEF Reference 1 Meta is a passive bookshelves that cost around 9000 USD for a pair.

  • 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 45.4Hz (resp. 39.6Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.57 and would be 8.38 with a perfect subwoofer.
      • Details: NBD: ON 0.318, LW 0.26, SP 0.256, PIR 0.225; SM: SP0.959, PIR0.932; LFQ 0.666, LFX 38Hz
    • Tonality (Preference) Score is 7.18 with an EQ and would be 8.84 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.245, LW 0.193, SP 0.227, PIR 0.163; SM: SP0.976, PIR0.972; LFQ 0.666, LFX 35Hz
  • Link to original Review: eac review. Links to other reviews: yt review , asr review .
KEF Reference 1 Meta
AutomaticEQ (IIR)
Set preamp gain to: -2.5dB.
Type Freq Q Gain
PK 76.0 1.24 -2.98
PK 129.0 1.8 -1.03
PK 253.0 1.43 -1.23
PK 309.0 2.08 -0.94
PK 565.0 1.63 -2.43
PK 1032.0 2.32 1.96
PK 1304.0 0.89 -2.9
PK 2082.0 2.71 -0.12
LS 3555.0 0.97 2.71
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
KEF Reference 1 Meta
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 -0.25
PK 100.0 2.14 -0.25
PK 160.0 2.14 0.0
PK 250.0 2.14 -0.25
PK 400.0 2.14 0.0
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.0
PK 4000.0 2.14 0.0
PK 6300.0 2.14 0.0
PK 10000.0 2.14 0.0
PK 16000.0 2.14 -0.25
Download
This EQ is designed for a 15 bands graphical EQ.
KEF Reference 1 Meta
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.5
PK 31.0 4.32 0.5
PK 40.0 4.32 0.5
PK 50.0 4.32 0.25
PK 63.0 4.32 -0.25
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.25
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 0.0
PK 315.0 4.32 0.0
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 0.25
PK 1000.0 4.32 0.5
PK 1250.0 4.32 0.25
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 0.25
PK 6300.0 4.32 0.25
PK 8000.0 4.32 0.25
PK 10000.0 4.32 0.25
PK 12000.0 4.32 0.25
PK 16000.0 4.32 0.0
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 Reference 1 Meta: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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