What we know about the measurement:

Canton Plus GLX.3 is a passive bookshelves that cost around 170 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 86.4dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 117.2Hz (resp. 98.1Hz).
  • Reference level is normalised to -0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.4dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 0.76 and would be 4.34 with a perfect subwoofer.
      • Details: NBD: ON 0.825, LW 0.666, SP 0.471, PIR 0.546; SM: SP0.627, PIR0.148; LFQ 0.616, LFX 98Hz
    • Tonality (Preference) Score is 4.22 with an EQ and would be 7.29 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.579, LW 0.452, SP 0.452, PIR 0.357; SM: SP0.925, PIR0.914; LFQ 0.504, LFX 74Hz
  • Link to Original review.
Canton Plus GLX.3
AutomaticEQ (IIR)
Set preamp gain to: -4.4dB.
Type Freq Q Gain
3 85.0 1.4 3.0
3 166.0 1.14 -4.06
3 172.0 0.3 2.99
3 1288.0 2.98 -2.65
3 3289.0 1.79 -1.4
3 5536.0 2.36 -3.57
3 12736.0 1.65 -7.33
Download

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

Canton Plus GLX.3 filters_auto_eq

AutomaticEQ

Canton Plus GLX.3 filters_eq_full

Target v.s. EQ

Canton Plus GLX.3
flipflop@ASR (IIR)
Set preamp gain to: -0.8dB.
Type Freq Q Gain
3 375.0 3.0 0.9
3 539.0 13.0 0.7
3 634.0 5.0 -2.9
3 655.0 5.0 4.4
3 777.0 15.0 -0.8
3 1159.0 5.0 2.5
3 1267.0 1.0 -3.8
3 1357.0 5.0 -2.8
3 1529.0 5.0 3.0
3 1915.0 18.0 1.1
3 2105.0 14.0 -1.1
3 2491.0 3.737 10.0
3 2494.0 5.0 -11.5
3 2964.0 5.0 -1.8
3 3750.0 12.0 -0.8
3 6073.0 1.0 -1.4
3 8034.0 5.0 2.6
3 9087.0 3.607 3.6
3 12709.0 1.0 -7.0
3 16255.0 5.0 3.1
Download

These EQ is designed by ASR member flipflop.

Canton Plus GLX.3
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
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 0.5
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 0.25
3 1000.0 2.14 -0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.75
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.75
Download

These EQ is designed for a 15 bands graphical EQ.

Canton Plus GLX.3
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 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
3 63.0 4.32 0.5
3 80.0 4.32 0.5
3 100.0 4.32 0.5
3 125.0 4.32 0.25
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 0.25
3 800.0 4.32 0.0
3 1000.0 4.32 -0.25
3 1250.0 4.32 -0.5
3 1600.0 4.32 0.0
3 2000.0 4.32 0.0
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 0.25
3 10000.0 4.32 -0.25
3 12000.0 4.32 -1.0
3 16000.0 4.32 -0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Canton Plus GLX.3: comparison between EQs
Canton Plus GLX.3

Comparison betweens various EQs

Canton Plus GLX.3

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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