Notice

Warning

We have multiple measurements for this speaker. Click here to see the default one (which is higher quality if we have one measurement better than the others).

KEF LSX is an active bookshelves that cost around 1250 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 .
  • -3dB (resp. -6db) point v.s. reference is at 64.5Hz (resp. 54.2Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.49 and would be 6.86 with a perfect subwoofer.
      • Details: NBD: ON 0.599, LW 0.5, SP 0.493, PIR 0.454; SM: SP0.94, PIR0.874; LFQ 0.231, LFX 51Hz
    • Tonality (Preference) Score is 5.34 with an EQ and would be 7.71 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.46, LW 0.367, SP 0.386, PIR 0.321; SM: SP0.965, PIR0.921; LFQ 0.231, LFX 51Hz
  • Horizontal measurement
  • Link to Original review.
KEF LSX
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 64.0 0.79 2.9
PK 299.0 0.3 -1.37
PK 378.0 2.49 1.3
PK 764.0 2.97 1.51
PK 1348.0 2.54 2.97
PK 2082.0 2.49 1.05
PK 4492.0 2.61 -1.59
PK 5310.0 2.96 2.88
PK 14965.0 0.9 2.94
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Graphic EQ 15 bands
Set preamp gain to: -0.8dB.
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 0.25
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
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 0.25
PK 2500.0 2.14 0.0
PK 4000.0 2.14 0.0
PK 6300.0 2.14 0.0
PK 10000.0 2.14 0.25
PK 16000.0 2.14 0.75
Download
This EQ is designed for a 15 bands graphical EQ.
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 0.25
PK 100.0 4.32 0.25
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
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 -0.25
PK 630.0 4.32 -0.25
PK 800.0 4.32 -0.25
PK 1000.0 4.32 -0.25
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.25
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.0
PK 5000.0 4.32 0.25
PK 6300.0 4.32 0.0
PK 8000.0 4.32 0.0
PK 10000.0 4.32 0.25
PK 12000.0 4.32 0.5
PK 16000.0 4.32 0.75
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Quick config:
Quick config:
Quick config:
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