What we know about the measurement:

JBL Synthesis 4429 is a passive bookshelves that cost around 6000 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 45.9Hz (resp. 37.8Hz).
  • Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.77 and would be 6.56 with a perfect subwoofer.
      • Details: NBD: ON 0.687, LW 0.491, SP 0.491, PIR 0.453; SM: SP0.884, PIR0.841; LFQ 1.804, LFX 37Hz
    • Tonality (Preference) Score is 6.04 with an EQ and would be 7.63 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.552, LW 0.316, SP 0.388, PIR 0.274; SM: SP0.894, PIR0.925; LFQ 1.65, LFX 33Hz
  • Link to Original review.
JBL Synthesis 4429
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
PK 34.0 1.22 2.99
PK 85.0 1.39 -2.1
PK 219.0 2.14 2.85
PK 260.0 1.4 -3.39
PK 1700.0 2.98 -1.3
PK 4818.0 3.0 -2.47
PK 8110.0 2.99 2.98
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
JBL Synthesis 4429
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 -0.25
PK 100.0 2.14 -0.25
PK 160.0 2.14 0.0
PK 250.0 2.14 -0.25
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.25
PK 1600.0 2.14 -0.25
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.0
PK 6300.0 2.14 0.25
PK 10000.0 2.14 0.25
PK 16000.0 2.14 0.0
Download
This EQ is designed for a 15 bands graphical EQ.
JBL Synthesis 4429
Graphic EQ 31 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.5
PK 31.0 4.32 0.5
PK 40.0 4.32 0.5
PK 50.0 4.32 0.25
PK 63.0 4.32 0.0
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.25
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.25
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.25
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.25
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.25
PK 4000.0 4.32 0.25
PK 5000.0 4.32 0.0
PK 6300.0 4.32 0.5
PK 8000.0 4.32 0.75
PK 10000.0 4.32 0.5
PK 12000.0 4.32 0.5
PK 16000.0 4.32 0.25
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
JBL Synthesis 4429: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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