What we know about the measurement:

JBL Synthesis Array 1400 is a passive cinema

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 88.7dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 49.1Hz (resp. 34.5Hz).
  • Reference level is normalised to 1.0dB 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 4.96 and would be 6.23 with a perfect subwoofer.
      • Details: NBD: ON 0.672, LW 0.431, SP 0.418, PIR 0.389; SM: SP0.696, PIR0.599; LFQ 1.292, LFX 28Hz
    • Tonality (Preference) Score is 6.64 with an EQ and would be 7.65 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.563, LW 0.318, SP 0.27, PIR 0.232; SM: SP0.888, PIR0.892; LFQ 1.292, LFX 24Hz
  • Link to original Review: audioheritage review. Links to other reviews: stereophile review .
JBL Synthesis Array 1400
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
5 52.0 1.26 2.91
3 102.0 1.29 -1.19
3 194.0 1.59 1.82
3 229.0 2.69 -2.2
3 478.0 2.9 -1.19
3 1491.0 2.97 1.89
3 7173.0 2.86 -1.83
3 9372.0 3.0 -2.55
3 15474.0 1.28 -1.01
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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 Array 1400 filters_auto_eq

AutomaticEQ

JBL Synthesis Array 1400 filters_eq_full

Target v.s. EQ

JBL Synthesis Array 1400
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 0.0
3 100.0 2.14 -0.25
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 0.5
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
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These EQ is designed for a 15 bands graphical EQ.

JBL Synthesis Array 1400
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
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 0.0
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 0.25
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 0.25
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 0.0
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 Synthesis Array 1400: comparison between EQs
JBL Synthesis Array 1400

Comparison betweens various EQs

JBL Synthesis Array 1400

Improvements made by EQ

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