What we know about the measurement:

AsciLab C6B is a passive bookshelves that cost around 1100 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. 45.4Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.3dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.46 and would be 8.4 with a perfect subwoofer.
      • Details: NBD: ON 0.296, LW 0.282, SP 0.257, PIR 0.24; SM: SP0.954, PIR0.939; LFQ 0.755, LFX 41Hz
    • Tonality (Preference) Score is 6.95 with an EQ and would be 8.53 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.29, LW 0.282, SP 0.255, PIR 0.233; SM: SP0.982, PIR0.981; LFQ 0.75, LFX 33Hz
  • Link to original Review: eac review. Links to other reviews: yt review , asr review , abi review .
  • Vendor specifications:
    • Size
      • Width 197mm
      • Height 385mm
      • Depth 265mm
    • Weight 10.5kg
AsciLab C6B
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
PK 36.0 0.49 2.89
PK 83.0 1.81 -1.3
PK 204.0 2.7 0.43
PK 1121.0 2.93 1.15
PK 8110.0 0.5 -1.71
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
AsciLab C6B
AutomaticEQ LW (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
PK 33.0 0.44 -0.7
PK 52.0 2.62 2.91
PK 190.0 0.87 0.83
PK 356.0 1.08 -0.48
PK 540.0 2.97 0.79
PK 1202.0 2.98 1.43
PK 1333.0 2.98 -1.17
Download
This EQ optimise for a flat listening window and is a good start for near field listening like on your desk.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
AsciLab C6B: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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