KEF LSX II LT is an active bookshelves that cost around 1000 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 56.4Hz (resp. 50.5Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.06 and would be 7.29 with a perfect subwoofer.
      • Details: NBD: ON 0.498, LW 0.401, SP 0.459, PIR 0.412; SM: SP0.943, PIR0.897; LFQ 0.399, LFX 47Hz
    • Tonality (Preference) Score is 5.48 with an EQ and would be 7.55 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.45, LW 0.353, SP 0.44, PIR 0.364; SM: SP0.943, PIR0.898; LFQ 0.399, LFX 43Hz
  • Link to original Review: eac review. .
KEF LSX II LT

Vendor specifications

  • SPL
    • peak: 102 dB
  • Size
    • Width 155mm
    • Height 240mm
    • Depth 180mm
  • Weight 6.8kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -3.4dB.
Type Freq Q Gain
PK 44.0 2.35 2.98
PK 62.0 0.51 1.06
PK 98.0 0.67 -1.3
PK 369.0 2.99 0.69
PK 621.0 2.83 -1.36
PK 910.0 1.31 2.11
PK 1010.0 2.88 -2.59
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Quick config:
Quick config:
Quick config:
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