What we know about the measurement:

Dayton Audio C452-AIR is a passive center

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 83.9dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 251.3Hz (resp. 251.3Hz).
  • Reference level is normalised to 1.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.28 and would be 5.06 with a perfect subwoofer.
      • Details: NBD: ON 0.735, LW 0.637, SP 0.543, PIR 0.553; SM: SP0.68, PIR0.371; LFQ 10.0, LFX 251Hz
    • Tonality (Preference) Score is 2.58 with an EQ and would be 7.92 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.373, LW 0.292, SP 0.363, PIR 0.3; SM: SP0.92, PIR0.892; LFQ 10.0, LFX 251Hz
  • Link to Original review.
Dayton Audio C452-AIR
AutomaticEQ (IIR)
Set preamp gain to: -1.6dB.
Type Freq Q Gain
3 279.0 2.99 -1.43
3 600.0 1.44 -1.84
3 1333.0 1.28 -5.14
3 1954.0 2.59 2.9
3 2324.0 2.18 1.91
3 6144.0 1.13 -3.63
3 12736.0 1.69 -7.0
Download

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

Dayton Audio C452-AIR filters_auto_eq

AutomaticEQ

Dayton Audio C452-AIR filters_eq_full

Target v.s. EQ

Dayton Audio C452-AIR
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 0.0
3 63.0 2.14 0.0
3 100.0 2.14 0.0
3 160.0 2.14 0.0
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 0.0
3 1000.0 2.14 -0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 0.5
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.25
3 10000.0 2.14 -0.25
3 16000.0 2.14 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Dayton Audio C452-AIR
Graphic EQ 31 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.0
3 31.0 4.32 0.0
3 40.0 4.32 0.0
3 50.0 4.32 0.0
3 63.0 4.32 0.0
3 80.0 4.32 0.0
3 100.0 4.32 0.0
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 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 0.5
3 2500.0 4.32 0.5
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 -0.25
3 8000.0 4.32 0.0
3 10000.0 4.32 0.0
3 12000.0 4.32 -0.5
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.

Dayton Audio C452-AIR: comparison between EQs
Dayton Audio C452-AIR

Comparison betweens various EQs

Dayton Audio C452-AIR

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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