What we know about the measurement:

Polk Audio 5JR is a passive bookshelves

  • Quality of the measurement data is low.
  • Origin of the data is Princeton.
  • Format of the data is .
  • Sensitivity: 90.4dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.7dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -3.03 and would be 3.63 with a perfect subwoofer.
      • Details: NBD: ON 1.133, LW 0.774, SP 0.699, PIR 0.617; SM: SP0.337, PIR0.267; LFQ 10.0, LFX 509Hz
    • Tonality (Preference) Score is -1.69 with an EQ and would be 4.96 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.969, LW 0.702, SP 0.767, PIR 0.644; SM: SP0.663, PIR0.7; LFQ 10.0, LFX 509Hz
  • Link to Original review.
Polk Audio 5JR
AutomaticEQ (IIR)
Set preamp gain to: -4.3dB.
Type Freq Q Gain
3 32.0 0.38 2.08
3 47.0 1.27 2.4
3 178.0 2.34 -4.67
3 344.0 0.67 2.1
3 1161.0 2.27 2.34
3 3068.0 0.72 2.92
3 10341.0 2.31 -6.7
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Polk Audio 5JR filters_auto_eq

AutomaticEQ

Polk Audio 5JR filters_eq_full

Target v.s. EQ

Polk Audio 5JR
Graphic EQ 15 bands
Set preamp gain to: -0.5dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 0.0
3 63.0 2.14 0.0
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 0.0
3 630.0 2.14 0.25
3 1000.0 2.14 0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.25
3 10000.0 2.14 -0.5
3 16000.0 2.14 0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Polk Audio 5JR
Graphic EQ 31 bands
Set preamp gain to: -0.5dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.0
3 31.0 4.32 0.0
3 40.0 4.32 0.0
3 50.0 4.32 0.0
3 63.0 4.32 0.0
3 80.0 4.32 0.0
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 0.0
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 0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 0.0
3 3150.0 4.32 -0.25
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 -0.25
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.

Polk Audio 5JR: comparison between EQs
Polk Audio 5JR

Comparison betweens various EQs

Polk Audio 5JR

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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