What we know about the measurement:

Buchardt Audio E50 is a passive bookshelves that cost around 1975 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 42.5Hz (resp. 38.8Hz).
  • Reference level is normalised to -0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.1dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.5 and would be 7.28 with a perfect subwoofer.
      • Details: NBD: ON 0.465, LW 0.375, SP 0.275, PIR 0.279; SM: SP0.928, PIR0.685; LFQ 0.585, LFX 37Hz
    • Tonality (Preference) Score is 6.7 with an EQ and would be 8.27 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.378, LW 0.282, SP 0.236, PIR 0.21; SM: SP0.976, PIR0.933; LFQ 0.714, LFX 33Hz
  • Link to original Review: yt review. .
  • Vendor specifications:
    • Sensitivity 85.0 dB
    • Impedance 5.0 Ohm
    • Size
      • Width 190.0mm
      • Height 395.0mm
      • Depth 284.0mm
    • Weight 8.6kg
Buchardt Audio E50
AutomaticEQ (IIR)
Set preamp gain to: -2.3dB.
Type Freq Q Gain
PK 52.0 0.25 2.95
PK 85.0 0.76 -1.82
PK 1700.0 2.56 -2.32
PK 6361.0 0.48 2.33
PK 7059.0 1.48 -4.95
PK 13186.0 1.49 -3.73
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)
;