What we know about the measurement:

JBL Synthesis SAM3HA is a passive center

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 86.8dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 64.8Hz (resp. 54.5Hz).
  • Reference level is normalised to 0.9dB 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 5.31 and would be 7.83 with a perfect subwoofer.
      • Details: NBD: ON 0.305, LW 0.285, SP 0.407, PIR 0.34; SM: SP0.89, PIR0.83; LFQ 1.953, LFX 55Hz
    • Tonality (Preference) Score is 5.93 with an EQ and would be 7.89 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.331, LW 0.225, SP 0.351, PIR 0.254; SM: SP0.879, PIR0.775; LFQ 1.856, LFX 41Hz
  • Link to Original review.
JBL Synthesis SAM3HA
AutomaticEQ (IIR)
Set preamp gain to: -5.7dB.
Type Freq Q Gain
LS 64.0 1.3 2.96
PK 102.0 1.69 -2.2
PK 129.0 1.07 -2.73
PK 245.0 0.53 -2.8
PK 418.0 0.67 -1.97
PK 817.0 1.64 1.53
PK 2082.0 0.37 -2.81
PK 4803.0 1.15 1.26
LS 8199.0 0.95 2.93
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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 SAM3HA filters_auto_eq

AutomaticEQ

JBL Synthesis SAM3HA filters_eq_full

Target v.s. EQ

JBL Synthesis SAM3HA
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
PK 25.0 2.14 0.75
PK 40.0 2.14 0.75
PK 63.0 2.14 0.75
PK 100.0 2.14 -0.5
PK 160.0 2.14 -0.5
PK 250.0 2.14 -0.25
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 -0.25
PK 4000.0 2.14 0.5
PK 6300.0 2.14 0.5
PK 10000.0 2.14 0.0
PK 16000.0 2.14 -0.25
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These EQ is designed for a 15 bands graphical EQ.

JBL Synthesis SAM3HA
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
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 0.5
PK 63.0 4.32 0.5
PK 80.0 4.32 0.0
PK 100.0 4.32 -0.25
PK 125.0 4.32 -0.5
PK 160.0 4.32 -0.5
PK 200.0 4.32 -0.25
PK 250.0 4.32 -0.25
PK 315.0 4.32 -0.25
PK 400.0 4.32 -0.25
PK 500.0 4.32 -0.25
PK 630.0 4.32 0.0
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 -0.25
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 0.0
PK 4000.0 4.32 0.25
PK 5000.0 4.32 0.0
PK 6300.0 4.32 0.25
PK 8000.0 4.32 0.0
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 -0.5
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

JBL Synthesis SAM3HA: comparison between EQs
JBL Synthesis SAM3HA

Comparison betweens various EQs

JBL Synthesis SAM3HA

Improvements made by EQ

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