What we know about the measurement:

Dali Spektor 1 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: 81.1dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 74.7Hz (resp. 63.0Hz).
  • Reference level is normalised to -0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.6dB 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°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.98 and would be 5.73 with a perfect subwoofer.
      • Details: NBD: ON 0.526, LW 0.424, SP 0.35, PIR 0.343; SM: SP0.724, PIR0.168; LFQ 0.224, LFX 62Hz
    • Tonality (Preference) Score is 5.61 with an EQ and would be 7.98 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.449, LW 0.333, SP 0.319, PIR 0.259; SM: SP0.966, PIR0.946; LFQ 0.224, LFX 51Hz
  • Link to Original review.
Dali Spektor 1
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
3 52.0 1.21 3.0
3 252.0 2.13 1.06
3 369.0 2.92 1.83
3 1202.0 2.9 -2.39
3 1823.0 2.99 -4.7
3 1887.0 0.96 2.73
3 14633.0 0.33 -4.85
Download

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

Dali Spektor 1 filters_auto_eq

AutomaticEQ

Dali Spektor 1 filters_eq_full

Target v.s. EQ

Dali Spektor 1
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 0.0
3 250.0 2.14 0.0
3 400.0 2.14 0.25
3 630.0 2.14 -0.25
3 1000.0 2.14 -0.25
3 1600.0 2.14 -0.5
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.5
3 16000.0 2.14 -1.0
Download

These EQ is designed for a 15 bands graphical EQ.

Dali Spektor 1
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 0.0
3 160.0 4.32 0.0
3 200.0 4.32 0.0
3 250.0 4.32 0.25
3 315.0 4.32 0.25
3 400.0 4.32 0.25
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 0.0
3 3150.0 4.32 0.0
3 4000.0 4.32 0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.25
3 12000.0 4.32 -0.5
3 16000.0 4.32 -0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Dali Spektor 1: comparison between EQs
Dali Spektor 1

Comparison betweens various EQs

Dali Spektor 1

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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