What we know about the measurement:

Mission LX-3 MKII is a passive bookshelves that cost around 250 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 87.7dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 67.4Hz (resp. 52.7Hz).
  • Reference level is normalised to -0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.7dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.52 and would be 6.78 with a perfect subwoofer.
      • Details: NBD: ON 0.643, LW 0.564, SP 0.5, PIR 0.455; SM: SP0.919, PIR0.888; LFQ 0.599, LFX 48Hz
    • Tonality (Preference) Score is 5.99 with an EQ and would be 7.8 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.486, LW 0.411, SP 0.34, PIR 0.285; SM: SP0.954, PIR0.939; LFQ 0.562, LFX 38Hz
  • Link to original Review: asr review. .
Mission LX-3 MKII
AutomaticEQ (IIR)
Set preamp gain to: -5.3dB.
Type Freq Q Gain
5 67.0 0.83 2.95
3 187.0 0.44 -2.97
3 668.0 2.96 -1.74
3 1180.0 2.92 -2.84
3 2302.0 2.87 -1.61
3 2813.0 2.86 1.0
3 6276.0 0.87 -2.24
3 9064.0 2.95 -2.85
5 15474.0 0.86 2.54
Download

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

Mission LX-3 MKII filters_auto_eq

AutomaticEQ

Mission LX-3 MKII filters_eq_full

Target v.s. EQ

Mission LX-3 MKII
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.5
3 100.0 2.14 0.0
3 160.0 2.14 -0.25
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 0.25
3 6300.0 2.14 0.0
3 10000.0 2.14 0.0
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Mission LX-3 MKII
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
3 63.0 4.32 0.5
3 80.0 4.32 0.25
3 100.0 4.32 0.0
3 125.0 4.32 -0.25
3 160.0 4.32 -0.25
3 200.0 4.32 -0.25
3 250.0 4.32 0.0
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 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.25
3 2000.0 4.32 0.25
3 2500.0 4.32 0.25
3 3150.0 4.32 0.5
3 4000.0 4.32 0.25
3 5000.0 4.32 0.0
3 6300.0 4.32 0.25
3 8000.0 4.32 0.0
3 10000.0 4.32 0.25
3 12000.0 4.32 0.75
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.

Mission LX-3 MKII: comparison between EQs
Mission LX-3 MKII

Comparison betweens various EQs

Mission LX-3 MKII

Improvements made by EQ

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