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 measured 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 0.72 with an EQ and would be 4.27 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 1.177, LW 0.766, SP 0.803, PIR 0.724; SM: SP0.832, PIR0.727; LFQ 1.571, LFX 96Hz
  • Link to Original review.
LYX SPA8PAS
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 102.0 2.99 3.0
PK 160.0 2.54 -4.15
PK 197.0 2.88 -6.0
PK 235.0 0.75 2.99
PK 849.0 2.89 -6.51
PK 1010.0 3.0 2.99
PK 7308.0 0.5 -7.33
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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
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 0.25
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 0.0
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 -0.75
PK 10000.0 2.14 -0.25
PK 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
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.25
PK 63.0 4.32 0.25
PK 80.0 4.32 0.25
PK 100.0 4.32 0.25
PK 125.0 4.32 0.25
PK 160.0 4.32 -0.5
PK 200.0 4.32 -0.5
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 0.0
PK 630.0 4.32 -0.25
PK 800.0 4.32 -0.5
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 0.0
PK 2500.0 4.32 0.5
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 -0.75
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 0.0
PK 12000.0 4.32 1.0
PK 16000.0 4.32 0.75
PK 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
Frequency Frequency with EQ
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