What we know about the measurement:

Focal Sopra 1 is a passive bookshelves that cost around 10000 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 201.4Hz (resp. 201.4Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.21 and would be 6.14 with a perfect subwoofer.
      • Details: NBD: ON 0.428, LW 0.378, SP 0.41, PIR 0.375; SM: SP0.52, PIR0.278; LFQ 10.0, LFX 201Hz
    • Tonality (Preference) Score is 2.2 with an EQ and would be 7.12 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.401, LW 0.333, SP 0.345, PIR 0.287; SM: SP0.737, PIR0.56; LFQ 10.0, LFX 201Hz
  • Link to Original review.
Focal Sopra 1
AutomaticEQ (IIR)
Set preamp gain to: -1.0dB.
Type Freq Q Gain
PK 134.0 2.99 -3.0
PK 8804.0 1.14 -2.19
PK 929.0 0.52 1.03
PK 2233.0 3.0 0.79
PK 227.0 3.0 -0.76
PK 15721.0 2.98 0.76
PK 4478.0 2.08 -0.77
PK 10971.0 2.98 -0.76
PK 1515.0 3.0 -0.75
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Focal Sopra 1
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
PK 25.0 2.14 0.0
PK 40.0 2.14 0.0
PK 63.0 2.14 0.0
PK 100.0 2.14 0.0
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
PK 400.0 2.14 0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.0
PK 6300.0 2.14 -0.25
PK 10000.0 2.14 -0.5
PK 16000.0 2.14 0.0
Download
This EQ is designed for a 15 bands graphical EQ.
Focal Sopra 1
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.0
PK 31.0 4.32 0.0
PK 40.0 4.32 0.0
PK 50.0 4.32 0.0
PK 63.0 4.32 0.0
PK 80.0 4.32 0.0
PK 100.0 4.32 0.0
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.25
PK 500.0 4.32 0.25
PK 630.0 4.32 0.0
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.25
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.25
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.0
PK 4000.0 4.32 -0.25
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 -0.5
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 0.0
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
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)
Focal Sopra 1: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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