What we know about the measurement:

Vandersteen Treo CT is a passive bookshelves that cost around 19790 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 43.9Hz (resp. 27.8Hz).
  • 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 4.31 and would be 5.53 with a perfect subwoofer.
      • Details: NBD: ON 0.51, LW 0.415, SP 0.373, PIR 0.387; SM: SP0.537, PIR0.12; LFQ 0.781, LFX 27Hz
    • Tonality (Preference) Score is 7.14 with an EQ and would be 7.92 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.427, LW 0.321, SP 0.294, PIR 0.27; SM: SP0.967, PIR0.91; LFQ 0.781, LFX 21Hz
  • Link to original Review: eac review. .
  • Vendor specifications:
    • Sensitivity 85 dB
    • Impedance 3 Ohm
    • Size
      • Width 254mm
      • Height 1092mm
      • Depth 381mm
    • Weight 36.3kg
Vandersteen Treo CT
AutomaticEQ (IIR)
Set preamp gain to: -5.1dB.
Type Freq Q Gain
PK 22.0 1.99 2.74
PK 113.0 0.38 2.06
PK 184.0 2.94 2.07
PK 454.0 0.49 2.99
PK 470.0 2.16 -3.82
PK 879.0 3.0 -1.94
PK 1429.0 1.12 -2.64
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Vandersteen Treo CT
AutomaticEQ LW (IIR)
Set preamp gain to: -4.6dB.
Type Freq Q Gain
PK 40.0 2.98 2.99
PK 95.0 1.29 1.87
PK 184.0 2.13 3.0
PK 321.0 0.98 2.93
PK 454.0 2.94 -2.98
PK 666.0 3.0 1.68
PK 1010.0 0.84 -1.44
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)
Vandersteen Treo CT: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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