What we know about the measurement:

Børresen X3 is a passive floorstanders that cost around 20000 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 50.5Hz (resp. 42.5Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.1dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.04 and would be 3.16 with a perfect subwoofer.
      • Details: NBD: ON 0.983, LW 0.91, SP 0.949, PIR 0.827; SM: SP0.512, PIR0.174; LFQ 0.646, LFX 26Hz
    • Tonality (Preference) Score is 5.52 with an EQ and would be 6.3 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.669, LW 0.603, SP 0.547, PIR 0.427; SM: SP0.812, PIR0.674; LFQ 0.646, LFX 21Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
  • Vendor specifications:
    • Sensitivity 88 dB
    • Impedance 4 Ohm
    • Size
      • Width 345mm
      • Height 1290mm
      • Depth 607mm
    • Weight 55.0kg
Børresen X3
AutomaticEQ (IIR)
Set preamp gain to: -10.4dB.
Type Freq Q Gain
PK 27.0 1.05 8.69
PK 74.0 3.28 -10.43
PK 102.0 2.58 1.72
PK 243.0 3.56 3.96
PK 289.0 5.92 9.97
PK 321.0 5.99 -7.84
PK 409.0 0.82 2.32
PK 792.0 4.15 -1.86
PK 1161.0 3.3 -1.46
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
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)
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