What we know about the measurement:

JBL Performance PT800 is a passive bookshelves

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 90.1dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 99.5Hz (resp. 82.0Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.5dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.87 and would be 8.12 with a perfect subwoofer.
      • Details: NBD: ON 0.347, LW 0.273, SP 0.311, PIR 0.216; SM: SP0.887, PIR0.841; LFQ 1.707, LFX 82Hz
    • Tonality (Preference) Score is 5.94 with an EQ and would be 8.43 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.251, LW 0.194, SP 0.268, PIR 0.156; SM: SP0.844, PIR0.794; LFQ 1.53, LFX 54Hz
  • Link to Original review.
JBL Performance PT800
AutomaticEQ (IIR)
Set preamp gain to: -6.4dB.
Type Freq Q Gain
5 99.0 0.79 2.92
3 99.0 0.3 1.64
3 138.0 1.08 -2.9
3 262.0 2.72 0.68
3 584.0 0.26 -2.66
3 625.0 0.28 -1.36
3 1394.0 2.96 0.86
3 3676.0 1.66 -0.91
5 16000.0 0.57 2.85
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

JBL Performance PT800 filters_auto_eq

AutomaticEQ

JBL Performance PT800 filters_eq_full

Target v.s. EQ

JBL Performance PT800
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.75
3 160.0 2.14 0.0
3 250.0 2.14 0.25
3 400.0 2.14 0.0
3 630.0 2.14 0.0
3 1000.0 2.14 -0.25
3 1600.0 2.14 -0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 0.25
3 10000.0 2.14 0.25
3 16000.0 2.14 1.0
Download

These EQ is designed for a 15 bands graphical EQ.

JBL Performance PT800
Graphic EQ 31 bands
Set preamp gain to: -1.2dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.75
3 100.0 4.32 0.75
3 125.0 4.32 0.25
3 160.0 4.32 0.0
3 200.0 4.32 0.25
3 250.0 4.32 0.25
3 315.0 4.32 0.25
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 -0.25
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 0.0
3 3150.0 4.32 0.0
3 4000.0 4.32 0.0
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 0.25
3 12000.0 4.32 0.25
3 16000.0 4.32 1.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

JBL Performance PT800: comparison between EQs
JBL Performance PT800

Comparison betweens various EQs

JBL Performance PT800

Improvements made by EQ

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