What we know about the measurement:

Pioneer S-DF3-K is a passive bookshelves

  • Quality of the measurement data is unknown.
  • Origin of the data is Pioneer.
  • Format of the data is .
  • Sensitivity: 87.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 63.0Hz (resp. 57.8Hz).
  • Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 3.44 and would be 5.96 with a perfect subwoofer.
      • Details: NBD: ON 0.408, LW 0.412, SP 0.468, PIR 0.444; SM: SP0.782, PIR0.271; LFQ 0.978, LFX 55Hz
    • Tonality (Preference) Score is 5.94 with an EQ and would be 8.28 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.276, LW 0.234, SP 0.343, PIR 0.261; SM: SP0.953, PIR0.89; LFQ 0.978, LFX 50Hz
  • Link to Original review.
Pioneer S-DF3-K
AutomaticEQ (IIR)
Set preamp gain to: -3.2dB.
Type Freq Q Gain
3 49.0 2.92 2.94
3 130.0 2.5 0.6
3 166.0 0.86 2.24
3 299.0 2.51 -0.25
3 1532.0 2.99 2.34
3 4051.0 1.02 -3.5
3 9989.0 1.63 -3.55
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Pioneer S-DF3-K filters_auto_eq

AutomaticEQ

Pioneer S-DF3-K filters_eq_full

Target v.s. EQ

Pioneer S-DF3-K
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
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 0.25
3 250.0 2.14 0.25
3 400.0 2.14 0.0
3 630.0 2.14 -0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.75
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These EQ is designed for a 15 bands graphical EQ.

Pioneer S-DF3-K
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.25
3 80.0 4.32 0.0
3 100.0 4.32 0.25
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 0.0
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 -0.25
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 -0.5
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.25
3 16000.0 4.32 -0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Pioneer S-DF3-K: comparison between EQs
Pioneer S-DF3-K

Comparison betweens various EQs

Pioneer S-DF3-K

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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