What we know about the measurement:

JBL Control 25T is a passive outdoor that cost around 350 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is JBL.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 150.0Hz (resp. 128.0Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.09 and would be 4.28 with a perfect subwoofer.
      • Details: NBD: ON 0.629, LW 0.613, SP 0.625, PIR 0.612; SM: SP0.099, PIR0.0; LFQ 1.728, LFX 150Hz
    • Tonality (Preference) Score is 1.69 with an EQ and would be 5.77 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.454, LW 0.458, SP 0.551, PIR 0.491; SM: SP0.476, PIR0.296; LFQ 2.126, LFX 127Hz
  • Note: Data provided by JBL in GLL format is highly variable, beware. It ranges from excellent to surprising.
JBL Control 25T
AutomaticEQ (IIR)
Set preamp gain to: -2.2dB.
Type Freq Q Gain
LS 739.0 0.64 2.96
PK 3008.0 0.77 0.52
PK 3555.0 0.33 -1.43
PK 4803.0 2.66 -1.2
PK 6489.0 2.03 -2.29
PK 7930.0 1.66 -1.53
PK 9372.0 2.09 -1.21
PK 13092.0 1.45 2.98
LS 15474.0 0.53 -0.71
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
JBL Control 25T
Graphic EQ 15 bands
Set preamp gain to: -1.5dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.5
PK 100.0 2.14 0.5
PK 160.0 2.14 0.25
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 0.0
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 1.5
Download
This EQ is designed for a 15 bands graphical EQ.
JBL Control 25T
Graphic EQ 31 bands
Set preamp gain to: -1.3dB.
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 0.5
PK 100.0 4.32 0.5
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 0.5
PK 400.0 4.32 0.5
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
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 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.0
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.5
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 0.0
PK 12000.0 4.32 0.5
PK 16000.0 4.32 1.25
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 Control 25T: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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