What we know about the measurement:

KEF R7 Meta is a passive floorstanders that cost around 5000 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is KEF.
  • Format of the data is .
  • Sensitivity: 88.3dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 52.7Hz (resp. 34.8Hz).
  • Reference level is normalised to 0.7dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.95 and would be 8.48 with a perfect subwoofer.
      • Details: NBD: ON 0.31, LW 0.255, SP 0.274, PIR 0.229; SM: SP0.99, PIR0.976; LFQ 0.815, LFX 32Hz
    • Tonality (Preference) Score is 7.42 with an EQ and would be 8.7 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.251, LW 0.19, SP 0.241, PIR 0.187; SM: SP0.977, PIR0.95; LFQ 0.815, LFX 28Hz
  • Link to original Review: white_paper review. .
KEF R7 Meta
AutomaticEQ (IIR)
Set preamp gain to: -5.0dB.
Type Freq Q Gain
LS 52.0 0.57 2.99
PK 113.0 0.6 -2.94
PK 134.0 1.76 0.77
PK 253.0 0.29 -1.65
PK 604.0 1.44 -1.51
PK 1442.0 1.88 -1.32
PK 4064.0 1.3 -1.71
PK 5677.0 2.21 -0.69
LS 16000.0 0.98 2.4
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

KEF R7 Meta filters_auto_eq

AutomaticEQ

KEF R7 Meta filters_eq_full

Target v.s. EQ

KEF R7 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 0.0
PK 100.0 2.14 -0.25
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 -0.25
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 0.25
PK 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

KEF R7 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 0.5
PK 63.0 4.32 0.0
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 -0.25
PK 200.0 4.32 -0.25
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 0.0
PK 1000.0 4.32 0.25
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 0.0
PK 5000.0 4.32 0.25
PK 6300.0 4.32 0.25
PK 8000.0 4.32 0.5
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

These EQ is designed for a 31 bands graphical EQ.

KEF R7 Meta: comparison between EQs
KEF R7 Meta

Comparison betweens various EQs

KEF R7 Meta

Improvements made by EQ
CEA2034
On Axis
Estimated In-Room Response
CEA2034
On Axis
Estimated In-Room Response
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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