What we know about the measurement:

Definitive Technology BP9020 is a passive floorstanders that cost around 500 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 35.9Hz (resp. 32.2Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.79 and would be 6.24 with a perfect subwoofer.
      • Details: NBD: ON 0.539, LW 0.475, SP 0.429, PIR 0.39; SM: SP0.805, PIR0.46; LFQ 1.135, LFX 31Hz
    • Tonality (Preference) Score is 6.52 with an EQ and would be 7.74 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.46, LW 0.374, SP 0.373, PIR 0.316; SM: SP0.943, PIR0.928; LFQ 1.135, LFX 27Hz
  • Link to original Review: eac review. Links to other reviews: dt review .
  • Vendor specifications:
    • Sensitivity 92 dB
    • Impedance 8 Ohm
    • Size
      • Width 330mm
      • Height 902mm
      • Depth 279mm
    • Weight 13.61kg
Definitive Technology BP9020
AutomaticEQ (IIR)
Set preamp gain to: -2.6dB.
Type Freq Q Gain
PK 28.0 1.93 2.98
PK 44.0 2.93 -3.18
PK 166.0 1.3 2.7
PK 243.0 0.8 -3.4
PK 395.0 1.8 2.95
PK 6818.0 1.15 -3.69
PK 14134.0 1.34 -4.52
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Definitive Technology BP9020
AutomaticEQ LW (IIR)
Set preamp gain to: -0.8dB.
Type Freq Q Gain
PK 46.0 2.42 -2.42
PK 243.0 2.86 -2.82
PK 739.0 3.0 -2.68
PK 942.0 2.76 -1.45
PK 976.0 0.26 1.32
PK 6144.0 1.0 -2.57
PK 13652.0 1.67 -3.14
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)
Definitive Technology BP9020: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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