What we know about the measurement:

KEF R8 Meta is a passive surround that cost around 800 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 117.2Hz (resp. 98.1Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Note: The tonality (Preference) score does not make sense for surround speakers. Don't give too much credits to the value.
    • Tonality (Preference) Score is 1.58 and would be 5.21 with a perfect subwoofer.
      • Details: NBD: ON 0.606, LW 0.523, SP 0.505, PIR 0.502; SM: SP0.642, PIR0.235; LFQ 0.835, LFX 101Hz
    • Tonality (Preference) Score is 4.84 with an EQ and would be 8.15 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.341, LW 0.281, SP 0.266, PIR 0.252; SM: SP0.952, PIR0.892; LFQ 0.71, LFX 84Hz
  • Link to original Review: asr review. .
KEF R8 Meta
AutomaticEQ (IIR)
Set preamp gain to: -2.6dB.
Type Freq Q Gain
PK 98.0 2.08 3.0
PK 178.0 1.82 -2.38
PK 976.0 2.9 -1.65
PK 1333.0 2.14 3.0
PK 2491.0 2.97 -1.94
PK 7834.0 0.88 -4.37
PK 11085.0 2.61 1.17
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
KEF R8 Meta
maiky76@ASR LW (IIR)
Set preamp gain to: -3.3dB.
Type Freq Q Gain
HP 86.75 1.15 0.0
PK 184.56 1.88 -2.84
PK 947.17 1.73 -1.13
PK 1360.98 2.23 3.83
PK 2527.16 4.25 -1.03
PK 7433.37 1.17 -3.23
PK 13039.93 1.05 1.54
Download
This EQ is designed by ASR member maiky76. This EQ optimise for a flat listening window and is a good start for near field listening like on your desk.
KEF R8 Meta
maiky76@ASR (IIR)
Set preamp gain to: -3.4dB.
Type Freq Q Gain
HP 86.25 1.15 0.0
PK 179.02 1.59 -3.03
PK 1010.95 2.48 -2.04
PK 1302.22 2.58 4.4
PK 2514.16 3.25 -2.0
PK 7518.11 0.98 -4.11
PK 11528.5 2.59 1.11
Download
This EQ is designed by ASR member maiky76. This EQ optimise the Harman score and is a good start for far field listening like in your living room.
KEF R8 Meta
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.5
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 0.0
PK 630.0 2.14 -0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.25
PK 2500.0 2.14 -0.5
PK 4000.0 2.14 -0.5
PK 6300.0 2.14 -0.75
PK 10000.0 2.14 -0.75
PK 16000.0 2.14 -0.5
Download
This EQ is designed for a 15 bands graphical EQ.
KEF R8 Meta
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.5
PK 63.0 4.32 0.5
PK 80.0 4.32 0.5
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 0.0
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 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 0.5
PK 1600.0 4.32 0.5
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 -0.5
PK 6300.0 4.32 -0.75
PK 8000.0 4.32 -0.75
PK 10000.0 4.32 -0.5
PK 12000.0 4.32 -0.25
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)
KEF R8 Meta: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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