What we know about the measurement:

Focal Alpha Twin Evo is an active bookshelves that cost around 480 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is Sound and Recording.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 28.7Hz (resp. 27.3Hz).
  • Reference level is normalised to 0.8dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.5dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.64 and would be 5.8 with a perfect subwoofer.
      • Details: NBD: ON 0.566, LW 0.534, SP 0.565, PIR 0.514; SM: SP0.665, PIR0.462; LFQ 1.842, LFX 26Hz
    • Tonality (Preference) Score is 6.75 with an EQ and would be 7.87 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.397, LW 0.335, SP 0.374, PIR 0.305; SM: SP0.911, PIR0.902; LFQ 1.842, LFX 26Hz
  • Link to Original review.
Focal Alpha Twin Evo
AutomaticEQ (IIR)
Set preamp gain to: -1.8dB.
Type Freq Q Gain
PK 85.0 0.8 -3.97
PK 356.0 1.95 -2.27
PK 560.0 2.1 3.0
PK 792.0 3.0 -1.96
PK 2324.0 2.99 2.11
PK 4654.0 0.47 -3.71
PK 13652.0 2.91 -3.65
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Focal Alpha Twin Evo
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 -0.25
PK 63.0 2.14 -0.5
PK 100.0 2.14 -0.75
PK 160.0 2.14 -0.25
PK 250.0 2.14 -0.25
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.0
PK 4000.0 2.14 -0.25
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 0.0
Download
This EQ is designed for a 15 bands graphical EQ.
Focal Alpha Twin Evo
Graphic EQ 31 bands
Set preamp gain to: -0.2dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.0
PK 40.0 4.32 -0.25
PK 50.0 4.32 -0.25
PK 63.0 4.32 -0.5
PK 80.0 4.32 -0.5
PK 100.0 4.32 -0.5
PK 125.0 4.32 -0.5
PK 160.0 4.32 -0.25
PK 200.0 4.32 -0.25
PK 250.0 4.32 -0.25
PK 315.0 4.32 -0.25
PK 400.0 4.32 -0.25
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 -0.25
PK 1000.0 4.32 -0.25
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.0
PK 3150.0 4.32 -0.25
PK 4000.0 4.32 -0.25
PK 5000.0 4.32 -0.5
PK 6300.0 4.32 -0.5
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 -0.25
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 Alpha Twin Evo: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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