What we know about the measurement:

KEF T101 is a passive surround that cost around 650 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 85.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 196.3Hz (resp. 165.5Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.4dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • 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 -1.59 and would be 3.03 with a perfect subwoofer.
      • Details: NBD: ON 0.964, LW 0.871, SP 0.784, PIR 0.796; SM: SP0.026, PIR0.054; LFQ 0.562, LFX 171Hz
    • Tonality (Preference) Score is 1.82 with an EQ and would be 5.73 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.729, LW 0.58, SP 0.535, PIR 0.47; SM: SP0.703, PIR0.547; LFQ 0.446, LFX 117Hz
  • Link to Original review.
KEF T101
AutomaticEQ (IIR)
Set preamp gain to: -5.5dB.
Type Freq Q Gain
3 105.0 1.63 3.0
3 197.0 0.25 2.82
3 879.0 2.02 -6.0
3 1532.0 3.0 3.0
3 1823.0 1.5 3.0
3 3289.0 2.99 -0.56
3 5732.0 0.42 -7.34
Download

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

KEF T101 filters_auto_eq

AutomaticEQ

KEF T101 filters_eq_full

Target v.s. EQ

KEF T101
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 0.25
3 160.0 2.14 0.25
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 0.25
3 1000.0 2.14 -0.5
3 1600.0 2.14 0.75
3 2500.0 2.14 0.0
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.75
Download

These EQ is designed for a 15 bands graphical EQ.

KEF T101
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.25
3 80.0 4.32 0.25
3 100.0 4.32 0.25
3 125.0 4.32 0.25
3 160.0 4.32 0.25
3 200.0 4.32 0.25
3 250.0 4.32 0.0
3 315.0 4.32 0.25
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.0
3 800.0 4.32 -0.75
3 1000.0 4.32 -0.75
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.5
3 2000.0 4.32 0.0
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.75
3 6300.0 4.32 -0.75
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.5
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 T101: comparison between EQs
KEF T101

Comparison betweens various EQs

KEF T101

Improvements made by EQ

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