What we know about the measurement:

JBL LSR305 is an active bookshelves

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is .
  • -3dB (resp. -6db) point v.s. reference is at 48.3Hz (resp. 44.9Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.0 and would be 8.14 with a perfect subwoofer.
      • Details: NBD: ON 0.339, LW 0.281, SP 0.27, PIR 0.248; SM: SP0.962, PIR0.883; LFQ 1.005, LFX 45Hz
    • Tonality (Preference) Score is 6.45 with an EQ and would be 8.32 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.315, LW 0.251, SP 0.33, PIR 0.252; SM: SP0.965, PIR0.941; LFQ 1.005, LFX 39Hz
  • Link to Original review.
JBL LSR305
AutomaticEQ (IIR)
Set preamp gain to: -8.3dB.
Type Freq Q Gain
3 56.0 1.0 2.97
3 99.0 0.25 2.96
3 138.0 1.67 -2.47
3 262.0 1.08 -2.83
3 691.0 2.05 -1.78
3 1491.0 1.35 -1.48
3 3216.0 0.55 -2.4
3 8478.0 0.7 -2.78
5 14473.0 1.0 2.98
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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 LSR305 filters_auto_eq

AutomaticEQ

JBL LSR305 filters_eq_full

Target v.s. EQ

JBL LSR305
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.0
3 100.0 2.14 0.25
3 160.0 2.14 0.0
3 250.0 2.14 -0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
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 0.0
3 10000.0 2.14 0.25
3 16000.0 2.14 -0.25
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These EQ is designed for a 15 bands graphical EQ.

JBL LSR305
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
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 0.5
3 63.0 4.32 0.0
3 80.0 4.32 0.0
3 100.0 4.32 0.25
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 -0.25
3 315.0 4.32 0.0
3 400.0 4.32 0.25
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 0.0
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.25
3 2000.0 4.32 0.0
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 0.0
3 6300.0 4.32 0.0
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 -0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

JBL LSR305: comparison between EQs
JBL LSR305

Comparison betweens various EQs

JBL LSR305

Improvements made by EQ

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