What we know about the measurement:

KEF Blade 1 Meta is a passive floorstanders that cost around 35000 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is KEF.
  • Format of the data is .
  • Sensitivity: 87.4dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 34.1Hz (resp. 25.0Hz).
  • Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.1dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 7.48 and would be 8.43 with a perfect subwoofer.
      • Details: NBD: ON 0.277, LW 0.238, SP 0.299, PIR 0.228; SM: SP0.932, PIR0.915; LFQ 0.582, LFX 24Hz
    • Tonality (Preference) Score is 8.12 with an EQ and would be 8.78 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.213, LW 0.185, SP 0.268, PIR 0.195; SM: SP0.955, PIR0.954; LFQ 0.582, LFX 20Hz
  • Link to original Review: white_paper review. .
  • Note: Data computed by KEF is precise above 300Hz, the on axis is corrected below that. The other curves are interpolated below 300Hz and are not very precise..
KEF Blade 1 Meta
AutomaticEQ (IIR)
Set preamp gain to: -2.7dB.
Type Freq Q Gain
3 21.0 0.69 2.99
3 80.0 0.8 -3.14
3 289.0 2.79 -1.21
3 579.0 2.77 -0.88
3 1244.0 2.51 -1.28
3 4654.0 2.44 -0.78
3 13652.0 0.74 -1.69
Download

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

KEF Blade 1 Meta filters_auto_eq

AutomaticEQ

KEF Blade 1 Meta filters_eq_full

Target v.s. EQ

KEF Blade 1 Meta
Graphic EQ 15 bands
Set preamp gain to: -0.5dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.0
3 63.0 2.14 -0.25
3 100.0 2.14 -0.5
3 160.0 2.14 -0.25
3 250.0 2.14 -0.25
3 400.0 2.14 0.0
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 0.25
3 6300.0 2.14 0.25
3 10000.0 2.14 0.25
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

KEF Blade 1 Meta
Graphic EQ 31 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.0
3 50.0 4.32 -0.25
3 63.0 4.32 -0.25
3 80.0 4.32 -0.5
3 100.0 4.32 -0.5
3 125.0 4.32 -0.5
3 160.0 4.32 -0.25
3 200.0 4.32 -0.25
3 250.0 4.32 -0.25
3 315.0 4.32 -0.25
3 400.0 4.32 0.0
3 500.0 4.32 -0.25
3 630.0 4.32 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 0.0
3 2000.0 4.32 0.25
3 2500.0 4.32 0.25
3 3150.0 4.32 0.25
3 4000.0 4.32 0.25
3 5000.0 4.32 0.25
3 6300.0 4.32 0.25
3 8000.0 4.32 0.25
3 10000.0 4.32 0.25
3 12000.0 4.32 0.25
3 16000.0 4.32 0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

KEF Blade 1 Meta: comparison between EQs
KEF Blade 1 Meta

Comparison betweens various EQs

KEF Blade 1 Meta

Improvements made by EQ

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