What we know about the measurement:

KEF LS50 Wireless II is a active bookshelves speaker that cost around 2800USD 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 51.3Hz (resp. 45.4Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.8 and would be 7.8 with a perfect subwoofer.
      • Details: NBD: ON 0.41, LW 0.31, SP 0.31, PIR 0.28; SM: SP0.92, PIR0.85; LFQ 0.74, LFX 42Hz
    • Tonality (Preference) Score is 6.6 with an EQ and would be 8.5 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.33, LW 0.24, SP 0.23, PIR 0.18; SM: SP0.97, PIR0.95; LFQ 0.76, LFX 41Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
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