What we know about the measurement:

Nexus MT DIY is a passive bookshelves

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity: 82.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 63.5Hz (resp. 52.6Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.1dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 70.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.3 and would be 7.71 with a perfect subwoofer.
      • Details: NBD: ON 0.252, LW 0.241, SP 0.436, PIR 0.338; SM: SP0.814, PIR0.719; LFQ 0.435, LFX 52Hz
    • Tonality (Preference) Score is 6.61 with an EQ and would be 8.73 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.232, LW 0.175, SP 0.295, PIR 0.197; SM: SP0.955, PIR0.956; LFQ 0.423, LFX 44Hz
  • Link to Original review.
Nexus MT DIY
AutomaticEQ (IIR)
Set preamp gain to: -4.0dB.
Type Freq Q Gain
3 44.0 2.08 2.96
3 67.0 1.06 1.93
3 1333.0 2.72 -0.68
3 2168.0 1.39 2.37
3 3289.0 0.92 -2.04
3 5165.0 1.07 -1.21
3 12301.0 2.81 2.08
Download

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

Nexus MT DIY filters_auto_eq

AutomaticEQ

Nexus MT DIY filters_eq_full

Target v.s. EQ

Nexus MT DIY
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.25
3 160.0 2.14 0.0
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 -0.5
3 6300.0 2.14 -0.25
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.

Nexus MT DIY
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.5
3 100.0 4.32 0.25
3 125.0 4.32 0.0
3 160.0 4.32 0.0
3 200.0 4.32 0.0
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 0.0
3 1600.0 4.32 0.25
3 2000.0 4.32 0.5
3 2500.0 4.32 0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 0.0
3 10000.0 4.32 0.0
3 12000.0 4.32 0.5
3 16000.0 4.32 0.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Nexus MT DIY: comparison between EQs
Nexus MT DIY

Comparison betweens various EQs

Nexus MT DIY

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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