What we know about the measurement:

KEF R6C Meta is a passive center that cost around 1800 USD

  • Quality of the measurement data is medium.
  • Origin of the data is KEF.
  • Format of the data is .
  • Sensitivity: 88.6dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 79.9Hz (resp. 67.2Hz).
  • Reference level is normalised to 0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.5dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.43 and would be 8.21 with a perfect subwoofer.
      • Details: NBD: ON 0.365, LW 0.281, SP 0.307, PIR 0.267; SM: SP0.972, PIR0.964; LFQ 0.971, LFX 63Hz
    • Tonality (Preference) Score is 6.03 with an EQ and would be 8.42 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.298, LW 0.215, SP 0.276, PIR 0.22; SM: SP0.939, PIR0.922; LFQ 0.971, LFX 51Hz
  • Link to original Review: white_paper review. .
KEF R6C Meta
AutomaticEQ (IIR)
Set preamp gain to: -4.7dB.
Type Freq Q Gain
LS 79.0 1.01 2.8
PK 79.0 0.27 2.85
PK 106.0 1.69 -2.87
PK 207.0 0.68 -2.69
PK 584.0 2.92 -0.97
PK 2461.0 2.74 1.9
PK 3676.0 2.72 0.86
PK 7669.0 0.31 -0.13
PK 12246.0 0.61 1.34
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

KEF R6C Meta filters_auto_eq

AutomaticEQ

KEF R6C Meta filters_eq_full

Target v.s. EQ

KEF R6C Meta
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 0.0
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 0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.5
PK 4000.0 2.14 0.25
PK 6300.0 2.14 0.25
PK 10000.0 2.14 0.5
PK 16000.0 2.14 0.5
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These EQ is designed for a 15 bands graphical EQ.

KEF R6C Meta
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 0.25
PK 80.0 4.32 0.25
PK 100.0 4.32 0.0
PK 125.0 4.32 -0.25
PK 160.0 4.32 -0.25
PK 200.0 4.32 0.0
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 0.25
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 0.0
PK 4000.0 4.32 0.0
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 0.25
PK 12000.0 4.32 0.25
PK 16000.0 4.32 0.0
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

KEF R6C Meta: comparison between EQs
KEF R6C Meta

Comparison betweens various EQs

KEF R6C Meta

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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