What we know about the measurement:

Elac Vela BS 403 is a passive bookshelves that cost around 1150 USD each.

  • 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 60.1Hz (resp. 52.7Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.5dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.27 and would be 6.6 with a perfect subwoofer.
      • Details: NBD: ON 0.561, LW 0.493, SP 0.539, PIR 0.494; SM: SP0.875, PIR0.776; LFQ 0.425, LFX 50Hz
    • Tonality (Preference) Score is 5.86 with an EQ and would be 8.0 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.334, LW 0.305, SP 0.363, PIR 0.312; SM: SP0.943, PIR0.897; LFQ 0.504, LFX 45Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
  • Vendor specifications:
    • Sensitivity 86 dB
    • Impedance 4 Ohm
    • Size
      • Width 191mm
      • Height 362mm
      • Depth 240mm
    • Weight 7.1kg
Elac Vela BS 403
AutomaticEQ (IIR)
Set preamp gain to: -2.5dB.
Type Freq Q Gain
PK 47.0 2.72 2.52
PK 579.0 2.97 -1.64
PK 2324.0 2.77 3.0
PK 3068.0 3.0 -3.38
PK 7059.0 1.53 -1.67
PK 8110.0 2.88 1.9
PK 13652.0 0.93 -0.16
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Elac Vela BS 403
AutomaticEQ LW (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
PK 58.0 2.97 2.98
PK 92.0 0.92 -1.11
PK 260.0 1.01 1.41
PK 439.0 0.4 -1.36
PK 2324.0 3.0 3.0
PK 8397.0 2.99 1.06
PK 16239.0 1.33 0.97
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)
Elac Vela BS 403: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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