What we know about the measurement:

LYX SPA8PAS is a passive bookshelves that cost around 100 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is .
  • Sensitivity: 92.3dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 123.4Hz (resp. 111.5Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 7.1dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -3.38 and would be 0.52 with a perfect subwoofer.
      • Details: NBD: ON 1.612, LW 1.232, SP 1.254, PIR 1.186; SM: SP0.445, PIR0.174; LFQ 1.571, LFX 116Hz
    • Tonality (Preference) Score is 0.63 with an EQ and would be 4.26 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 1.188, LW 0.777, SP 0.808, PIR 0.725; SM: SP0.851, PIR0.738; LFQ 1.571, LFX 100Hz
  • Link to Original review.
LYX SPA8PAS
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
3 109.0 0.25 3.0
3 178.0 1.98 -7.47
3 820.0 3.0 -5.49
3 3779.0 3.0 3.0
3 4654.0 1.26 -4.16
3 7566.0 1.37 -7.77
3 12301.0 2.96 3.0
Download

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

LYX SPA8PAS filters_auto_eq

AutomaticEQ

LYX SPA8PAS filters_eq_full

Target v.s. EQ

LYX SPA8PAS
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 0.25
3 160.0 2.14 -0.25
3 250.0 2.14 0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.0
3 1000.0 2.14 0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 0.25
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.75
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

LYX SPA8PAS
Graphic EQ 31 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.25
3 80.0 4.32 0.25
3 100.0 4.32 0.25
3 125.0 4.32 0.25
3 160.0 4.32 -0.5
3 200.0 4.32 -0.5
3 250.0 4.32 0.25
3 315.0 4.32 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.0
3 630.0 4.32 -0.25
3 800.0 4.32 -0.5
3 1000.0 4.32 0.25
3 1250.0 4.32 0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 0.5
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 -0.75
3 8000.0 4.32 -0.5
3 10000.0 4.32 0.0
3 12000.0 4.32 1.0
3 16000.0 4.32 0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

LYX SPA8PAS: comparison between EQs
LYX SPA8PAS

Comparison betweens various EQs

LYX SPA8PAS

Improvements made by EQ

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