What we know about the measurement:

JBL Synthesis K2 S5800 is a passive floorstanders

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 94.3dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 59.2Hz (resp. 49.1Hz).
  • Reference level is normalised to 0.8dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.79 and would be 6.79 with a perfect subwoofer.
      • Details: NBD: ON 0.573, LW 0.415, SP 0.42, PIR 0.36; SM: SP0.803, PIR0.695; LFQ 2.192, LFX 42Hz
    • Tonality (Preference) Score is 6.67 with an EQ and would be 7.75 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.472, LW 0.328, SP 0.382, PIR 0.294; SM: SP0.921, PIR0.917; LFQ 2.035, LFX 25Hz
  • Link to Original review.
JBL Synthesis K2 S5800
AutomaticEQ (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
3 27.0 0.43 2.98
3 98.0 2.87 -1.67
3 160.0 0.67 -1.75
3 1083.0 2.99 3.0
3 1288.0 1.02 -2.27
3 7059.0 1.0 -3.15
3 15685.0 2.22 -4.72
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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 Synthesis K2 S5800 filters_auto_eq

AutomaticEQ

JBL Synthesis K2 S5800 filters_eq_full

Target v.s. EQ

JBL Synthesis K2 S5800
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
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 0.0
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 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.25
3 10000.0 2.14 0.0
3 16000.0 2.14 -0.5
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These EQ is designed for a 15 bands graphical EQ.

JBL Synthesis K2 S5800
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
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 0.0
3 250.0 4.32 0.0
3 315.0 4.32 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 0.5
3 800.0 4.32 0.25
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 0.0
3 2500.0 4.32 0.25
3 3150.0 4.32 0.0
3 4000.0 4.32 0.0
3 5000.0 4.32 0.0
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 -0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

JBL Synthesis K2 S5800: comparison between EQs
JBL Synthesis K2 S5800

Comparison betweens various EQs

JBL Synthesis K2 S5800

Improvements made by EQ

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