What we know about the measurement:

Dutch Dutch 8C is an active bookshelves that cost around 10000 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 .
  • -3dB (resp. -6db) point v.s. reference is at 23.4Hz (resp. 22.0Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 7.23 and would be 7.88 with a perfect subwoofer.
      • Details: NBD: ON 0.28, LW 0.246, SP 0.297, PIR 0.253; SM: SP0.839, PIR0.714; LFQ 2.571, LFX 20Hz
    • Tonality (Preference) Score is 7.96 with an EQ and would be 8.61 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.292, LW 0.231, SP 0.225, PIR 0.19; SM: SP0.969, PIR0.959; LFQ 2.571, LFX 20Hz
  • Link to original Review: eac review. Links to other reviews: asr review .
Dutch Dutch 8C
AutomaticEQ (IIR)
Set preamp gain to: -1.2dB.
Type Freq Q Gain
PK 11704.0 0.59 -2.19
PK 44.0 0.7 -2.13
PK 1446.0 2.42 1.26
PK 408.0 3.0 -1.19
PK 85.0 2.95 -0.75
PK 2447.0 2.97 0.76
PK 745.0 2.95 -0.75
PK 218.0 2.96 -0.75
PK 6479.0 2.85 -0.75
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Dutch Dutch 8C
Graphic EQ 15 bands
Set preamp gain to: -0.2dB.
Type Freq Q Gain
PK 25.0 2.14 0.0
PK 40.0 2.14 -0.25
PK 63.0 2.14 -0.25
PK 100.0 2.14 0.0
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.25
PK 2500.0 2.14 0.0
PK 4000.0 2.14 0.0
PK 6300.0 2.14 -0.25
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 -0.25
Download
This EQ is designed for a 15 bands graphical EQ.
Dutch Dutch 8C
Graphic EQ 31 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.0
PK 31.0 4.32 -0.25
PK 40.0 4.32 -0.25
PK 50.0 4.32 -0.25
PK 63.0 4.32 -0.25
PK 80.0 4.32 -0.25
PK 100.0 4.32 0.0
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 -0.25
PK 500.0 4.32 0.0
PK 630.0 4.32 0.0
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.25
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.0
PK 5000.0 4.32 0.0
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 -0.25
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
Dutch Dutch 8C: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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