What we know about the measurement:

Focal Alpha 50 Evo is an active bookshelves that cost around 700 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 43.7Hz (resp. 41.9Hz).
  • Reference level is normalised to 0.7dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 0.31 and would be 4.96 with a perfect subwoofer.
      • Details: NBD: ON 0.449, LW 0.366, SP 1.549, PIR 0.586; SM: SP0.025, PIR0.066; LFQ 1.668, LFX 174Hz
    • Tonality (Preference) Score is 0.76 with an EQ and would be 5.41 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.395, LW 0.294, SP 1.496, PIR 0.503; SM: SP0.02, PIR0.096; LFQ 1.668, LFX 174Hz
  • Link to original Review: dci review. Links to other reviews: asr review .
Focal Alpha 50 Evo
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
3 189.0 0.98 -2.71
3 189.0 1.08 -0.92
3 189.0 1.95 1.63
3 342.0 2.58 1.0
3 691.0 2.98 2.7
3 1762.0 3.0 2.99
3 1762.0 1.74 -1.86
3 4645.0 2.99 -2.39
3 7417.0 1.29 -1.38
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Focal Alpha 50 Evo filters_auto_eq

AutomaticEQ

Focal Alpha 50 Evo filters_eq_full

Target v.s. EQ

Focal Alpha 50 Evo
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 0.0
3 63.0 2.14 0.0
3 100.0 2.14 0.0
3 160.0 2.14 0.0
3 250.0 2.14 -0.25
3 400.0 2.14 0.0
3 630.0 2.14 0.5
3 1000.0 2.14 0.5
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.25
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Focal Alpha 50 Evo
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.0
3 31.0 4.32 0.0
3 40.0 4.32 0.0
3 50.0 4.32 0.0
3 63.0 4.32 0.0
3 80.0 4.32 0.0
3 100.0 4.32 0.0
3 125.0 4.32 0.0
3 160.0 4.32 0.0
3 200.0 4.32 -0.25
3 250.0 4.32 -0.25
3 315.0 4.32 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.5
3 800.0 4.32 0.5
3 1000.0 4.32 0.5
3 1250.0 4.32 0.0
3 1600.0 4.32 0.25
3 2000.0 4.32 0.25
3 2500.0 4.32 0.0
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.5
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.25
3 10000.0 4.32 0.0
3 12000.0 4.32 0.0
3 16000.0 4.32 0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Focal Alpha 50 Evo: comparison between EQs
Focal Alpha 50 Evo

Comparison betweens various EQs

Focal Alpha 50 Evo

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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