JBL Control 24CT is a passive inwall that cost around 150 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is JBL.
  • Format of the data is a GLL file .
  • Sensitivity:
    • Measured: 79.9 dB (avg. 300Hz-3kHz for 2.83V estimated at 1m).
    • Measured: 59.9 dB computed at the measurement distance (10.0m) over the same frequency range.
  • -3dB (resp. -6db) point v.s. reference is at 22.4Hz (resp. 22.4Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.5dB over the same frequency range.
  • 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 7.07 and would be 8.37 with a perfect subwoofer.
      • Details: NBD: ON 0.131, LW 0.127, SP 0.2, PIR 0.152; SM: SP0.754, PIR0.635; LFQ 4.227, LFX 29Hz
    • Tonality (Preference) Score is 8.69 with an EQ and would be 9.51 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.046, LW 0.027, SP 0.123, PIR 0.067; SM: SP0.868, PIR0.923; LFQ 4.227, LFX 22Hz
  • Link to original Review: jbl review. .
  • Note: Data provided by JBL in GLL format is highly variable, beware. It ranges from excellent to surprising.
JBL Control 24CT
AutomaticEQ (IIR)
Set preamp gain to: -1.3dB.
Type Freq Q Gain
PK 74.0 0.25 1.4
PK 243.0 1.25 -1.81
PK 395.0 1.07 -1.29
PK 1700.0 0.82 0.54
PK 4051.0 1.21 -0.45
PK 11085.0 0.41 -2.06
PK 16239.0 0.33 1.77
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
PK 25.0 2.14 0.75
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 -0.25
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.0
PK 4000.0 2.14 -0.25
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.
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 0.75
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 0.25
PK 80.0 4.32 0.25
PK 100.0 4.32 0.25
PK 125.0 4.32 0.25
PK 160.0 4.32 0.0
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 -0.25
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 0.0
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 -0.25
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
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.
Quick config:
Quick config:
Quick config:
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