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
PK 49.0 2.92 2.94
PK 130.0 2.5 0.6
PK 166.0 0.86 2.24
PK 299.0 2.51 -0.25
PK 1532.0 2.99 2.34
PK 4051.0 1.02 -3.5
PK 9989.0 1.63 -3.55
Download

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
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 0.25
PK 160.0 2.14 0.25
PK 250.0 2.14 0.25
PK 400.0 2.14 0.0
PK 630.0 2.14 -0.25
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 -0.5
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.75
PK 16000.0 2.14 -0.75
Download

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
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
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 0.0
PK 100.0 4.32 0.25
PK 125.0 4.32 0.25
PK 160.0 4.32 0.25
PK 200.0 4.32 0.25
PK 250.0 4.32 0.25
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
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 0.0
PK 1600.0 4.32 0.25
PK 2000.0 4.32 -0.25
PK 2500.0 4.32 0.25
PK 3150.0 4.32 -0.25
PK 4000.0 4.32 -0.5
PK 5000.0 4.32 -0.5
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 -0.5
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 -0.5
PK 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
Frequency Frequency with EQ
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