What we know about the measurement:

JBL Synthesis SCL-5 is a passive inwall that cost around 2200 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 87.3dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 74.7Hz (resp. 51.3Hz).
  • Reference level is normalised to -0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 25.0dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-10.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-70.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Note: The tonality (Preference) score does not make sense for inwall speakers. Don't give too much credits to the value.
    • Tonality (Preference) Score is 1.72 and would be 4.08 with a perfect subwoofer.
      • Details: NBD: ON 1.292, LW 0.999, SP 0.504, PIR 0.564; SM: SP0.64, PIR0.563; LFQ 0.044, LFX 51Hz
    • Tonality (Preference) Score is 5.13 with an EQ and would be 6.25 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 1.01, LW 0.721, SP 0.35, PIR 0.328; SM: SP0.886, PIR0.892; LFQ 0.03, LFX 26Hz
  • Link to Original review.
  • Vendor specifications:
    • Dispersion: 120° horizontal and 60° vertical.
    • Sensitivity 86 dB
    • Impedance 6 Ohm
    • Size
      • Width 318mm
      • Height 318mm
      • Depth 152 mm)
    • Weight 3.9 kg
JBL Synthesis SCL-5
AutomaticEQ (IIR)
Set preamp gain to: -5.0dB.
Type Freq Q Gain
3 27.0 1.19 2.93
3 77.0 0.25 2.94
3 172.0 1.04 -1.14
3 689.0 2.49 -2.65
3 910.0 2.55 -4.88
3 1429.0 3.0 3.0
3 2765.0 1.85 -4.57
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

JBL Synthesis SCL-5 filters_auto_eq

AutomaticEQ

JBL Synthesis SCL-5 filters_eq_full

Target v.s. EQ

JBL Synthesis SCL-5
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.5
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 -0.25
3 630.0 2.14 -0.5
3 1000.0 2.14 -0.75
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 0.75
3 16000.0 2.14 1.0
Download

These EQ is designed for a 15 bands graphical EQ.

JBL Synthesis SCL-5
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.25
3 80.0 4.32 0.25
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 -0.25
3 400.0 4.32 -0.25
3 500.0 4.32 -0.25
3 630.0 4.32 -0.5
3 800.0 4.32 -0.75
3 1000.0 4.32 -0.75
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 -0.25
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 0.0
3 8000.0 4.32 0.25
3 10000.0 4.32 0.5
3 12000.0 4.32 0.5
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 Synthesis SCL-5: comparison between EQs
JBL Synthesis SCL-5

Comparison betweens various EQs

JBL Synthesis SCL-5

Improvements made by EQ
CEA2034
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
CEA2034
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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