What we know about the measurement:

Part Express DIY Samba MT is a passive bookshelves that cost around 330 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 82.2dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 45.4Hz (resp. 39.6Hz).
  • Reference level is normalised to -0.8dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 6.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-40.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.64 and would be 6.44 with a perfect subwoofer.
      • Details: NBD: ON 0.706, LW 0.545, SP 0.415, PIR 0.413; SM: SP0.906, PIR0.759; LFQ 0.704, LFX 38Hz
    • Tonality (Preference) Score is 6.41 with an EQ and would be 7.9 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.516, LW 0.351, SP 0.272, PIR 0.219; SM: SP0.943, PIR0.933; LFQ 0.799, LFX 32Hz
  • Link to Original review.
Part Express DIY Samba MT
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
5 68.0 1.03 2.97
3 89.0 1.51 -2.97
3 109.0 1.1 -0.95
3 584.0 2.75 1.02
3 714.0 2.8 -2.04
3 1261.0 2.07 -2.48
3 1541.0 2.89 2.84
3 3216.0 2.19 1.92
3 7417.0 1.11 -1.82
Download

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

Part Express DIY Samba MT filters_auto_eq

AutomaticEQ

Part Express DIY Samba MT filters_eq_full

Target v.s. EQ

Part Express DIY Samba MT
Graphic EQ 15 bands
Set preamp gain to: -0.5dB.
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 0.0
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 -0.25
3 1600.0 2.14 0.5
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 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

Part Express DIY Samba MT
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
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 0.25
3 63.0 4.32 -0.25
3 80.0 4.32 -0.5
3 100.0 4.32 -0.5
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 -0.25
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 -0.25
3 800.0 4.32 -0.25
3 1000.0 4.32 -0.25
3 1250.0 4.32 0.0
3 1600.0 4.32 0.5
3 2000.0 4.32 0.0
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 -0.25
3 10000.0 4.32 0.0
3 12000.0 4.32 0.0
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.

Part Express DIY Samba MT: comparison between EQs
Part Express DIY Samba MT

Comparison betweens various EQs

Part Express DIY Samba MT

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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