What we know about the measurement:

JBL COL600 is a passive columns that cost around 300 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is JBL.
  • Format of the data is a GLL file .
  • Sensitivity: 102.0dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (10m) over the same frequency range: 82.0dB.
  • -3dB (resp. -6db) point v.s. reference is at 106.0Hz (resp. 95.0Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.1dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-50.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 3.04 and would be 6.51 with a perfect subwoofer.
      • Details: NBD: ON 0.523, LW 0.524, SP 0.577, PIR 0.554; SM: SP0.878, PIR0.771; LFQ 0.401, LFX 92Hz
    • Tonality (Preference) Score is 4.71 with an EQ and would be 8.02 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.305, LW 0.307, SP 0.382, PIR 0.341; SM: SP0.953, PIR0.915; LFQ 0.401, LFX 85Hz
  • Vendor specifications:
    • Dispersion: 160° horizontal and 70° vertical.
    • Sensitivity 86 dB
    • Impedance 8 Ohm
    • SPL
      • max: 105 dB
      • peak: 111 dB
    • Size
      • Width 102mm
      • Height 598mm
      • Depth 93 mm)
    • Weight 3.7 kg
JBL COL600
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
3 98.0 2.99 3.0
3 279.0 1.83 2.99
3 289.0 0.42 -1.7
3 1010.0 2.69 1.66
3 2964.0 2.65 -2.17
3 5934.0 2.99 -1.76
3 7834.0 2.88 -0.56
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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 COL600 filters_auto_eq

AutomaticEQ

JBL COL600 filters_eq_full

Target v.s. EQ

JBL COL600
AutomaticEQ LW (IIR)
Set preamp gain to: -3.6dB.
Type Freq Q Gain
3 160.0 2.41 -2.47
3 289.0 2.35 2.06
3 504.0 1.47 -1.2
3 643.0 2.99 1.6
3 2765.0 2.98 -2.44
3 8397.0 0.29 0.87
3 15685.0 2.99 2.98
Download

These EQ optimise for a flat listening window and is a good start for near field listening like on your desk.

JBL COL600: comparison between EQs
JBL COL600

Comparison betweens various EQs

JBL COL600

Improvements made by 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
Frequency Frequency with EQ
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