What we know about the measurement:

Vandersteen VLR is a passive bookshelves that cost around 3800 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 81.0dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 124.5Hz (resp. 74.7Hz).
  • Reference level is normalised to 0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 7.6dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-40.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.21 and would be 4.28 with a perfect subwoofer.
      • Details: NBD: ON 1.018, LW 0.543, SP 0.37, PIR 0.393; SM: SP0.703, PIR0.136; LFQ 0.963, LFX 74Hz
    • Tonality (Preference) Score is 4.6 with an EQ and would be 6.97 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.795, LW 0.372, SP 0.352, PIR 0.301; SM: SP0.916, PIR0.934; LFQ 0.822, LFX 51Hz
  • Link to original Review: eac review. .
Vandersteen VLR
AutomaticEQ (IIR)
Set preamp gain to: -4.0dB.
Type Freq Q Gain
3 60.0 0.9 2.98
3 130.0 0.25 1.2
3 765.0 1.5 -1.8
3 1121.0 2.98 2.38
3 2964.0 2.99 -0.96
3 4495.0 3.0 -3.77
3 9989.0 0.78 -3.41
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Vandersteen VLR filters_auto_eq

AutomaticEQ

Vandersteen VLR filters_eq_full

Target v.s. EQ

Vandersteen VLR
maiky76@ASR LW (IIR)
Set preamp gain to: -1.5dB.
Type Freq Q Gain
1 72.01 1.04 0.0
3 724.61 1.91 -2.33
3 1137.24 3.9 1.92
3 3811.42 1.19 -2.58
3 4300.09 6.96 -3.35
3 11691.68 1.11 -1.83
Download

These EQ is designed by ASR member maiky76. These EQ optimise for a flat listening window and is a good start for near field listening like on your desk.

Vandersteen VLR
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 0.25
3 160.0 2.14 0.25
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 -0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.75
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.5
3 16000.0 2.14 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Vandersteen VLR
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
3 63.0 4.32 0.5
3 80.0 4.32 0.5
3 100.0 4.32 0.5
3 125.0 4.32 0.5
3 160.0 4.32 0.25
3 200.0 4.32 0.25
3 250.0 4.32 0.25
3 315.0 4.32 0.25
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 -0.25
3 800.0 4.32 -0.25
3 1000.0 4.32 0.0
3 1250.0 4.32 0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 -0.25
3 2500.0 4.32 0.0
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.5
3 6300.0 4.32 -0.5
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.75
3 16000.0 4.32 -0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Vandersteen VLR: comparison between EQs
Vandersteen VLR

Comparison betweens various EQs

Vandersteen VLR

Improvements made by 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
Frequency Frequency with EQ
Frequency Frequency with EQ
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