What we know about the measurement:

JBL Studio Series S26 is a passive bookshelves

  • Quality of the measurement data is medium.
  • Origin of the data is JBL.
  • Format of the data is .
  • Sensitivity: 85.5dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 50.4Hz (resp. 42.7Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.94 and would be 7.98 with a perfect subwoofer.
      • Details: NBD: ON 0.308, LW 0.264, SP 0.337, PIR 0.281; SM: SP0.907, PIR0.824; LFQ 1.076, LFX 42Hz
    • Tonality (Preference) Score is 7.0 with an EQ and would be 8.76 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.214, LW 0.2, SP 0.266, PIR 0.194; SM: SP0.945, PIR0.949; LFQ 1.076, LFX 37Hz
JBL Studio Series S26
AutomaticEQ (IIR)
Set preamp gain to: -2.5dB.
Type Freq Q Gain
3 38.0 1.75 2.99
3 92.0 0.86 -2.1
3 621.0 1.2 -2.0
3 1244.0 2.87 0.93
3 2765.0 2.42 1.7
3 5536.0 1.1 -2.74
3 11085.0 2.73 -0.34
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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 Studio Series S26 filters_auto_eq

AutomaticEQ

JBL Studio Series S26 filters_eq_full

Target v.s. EQ

JBL Studio Series S26
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
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 0.0
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 0.0
3 16000.0 2.14 0.5
Download

These EQ is designed for a 15 bands graphical EQ.

JBL Studio Series S26
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 -0.25
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 0.0
3 500.0 4.32 -0.25
3 630.0 4.32 -0.25
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
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 0.25
3 3150.0 4.32 0.25
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 0.0
3 10000.0 4.32 0.0
3 12000.0 4.32 0.0
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 Studio Series S26: comparison between EQs
JBL Studio Series S26

Comparison betweens various EQs

JBL Studio Series S26

Improvements made by EQ

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