What we know about the measurement:

XMechanik Mechano23 DIY is a passive bookshelves that cost around 200 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: 84.7dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 77.6Hz (resp. 55.7Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.8dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.55 and would be 8.01 with a perfect subwoofer.
      • Details: NBD: ON 0.374, LW 0.35, SP 0.304, PIR 0.295; SM: SP0.967, PIR0.927; LFQ 0.336, LFX 54Hz
    • Tonality (Preference) Score is 6.81 with an EQ and would be 8.82 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.248, LW 0.217, SP 0.233, PIR 0.173; SM: SP0.981, PIR0.979; LFQ 0.35, LFX 42Hz
  • Link to original Review: asr review. Links to other reviews: design review .
XMechanik Mechano23 DIY
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
3 60.0 0.98 2.97
3 454.0 2.96 -0.72
3 522.0 2.91 1.39
3 2579.0 1.48 -1.43
3 2964.0 2.99 2.01
3 9648.0 2.72 2.08
3 12301.0 2.2 -1.9
Download

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

XMechanik Mechano23 DIY filters_auto_eq

AutomaticEQ

XMechanik Mechano23 DIY filters_eq_full

Target v.s. EQ

XMechanik Mechano23 DIY
AutomaticEQ LW (IIR)
Set preamp gain to: -2.7dB.
Type Freq Q Gain
3 23.0 1.33 1.42
3 80.0 1.98 2.34
3 409.0 0.73 0.28
3 1480.0 1.36 -0.97
3 2245.0 2.96 -1.26
3 2862.0 0.65 1.42
3 9648.0 2.99 2.46
Download

These EQ optimise for a flat listening window and is a good start for near field listening like on your desk.

XMechanik Mechano23 DIY: comparison between EQs
XMechanik Mechano23 DIY

Comparison betweens various EQs

XMechanik Mechano23 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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