What we know about the measurement:

Dayton Audio B452-AIR is a passive bookshelves that cost around 40 USD for a pair.

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 81.4dB (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 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -1.32 and would be 4.01 with a perfect subwoofer.
      • Details: NBD: ON 0.781, LW 0.709, SP 0.596, PIR 0.629; SM: SP0.458, PIR0.069; LFQ 10.0, LFX 251Hz
    • Tonality (Preference) Score is 2.57 with an EQ and would be 7.91 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.398, LW 0.312, SP 0.423, PIR 0.302; SM: SP0.954, PIR0.915; LFQ 10.0, LFX 251Hz
  • Link to Original review.
Dayton Audio B452-AIR
AutomaticEQ (IIR)
Set preamp gain to: -2.6dB.
Type Freq Q Gain
3 227.0 2.99 1.12
3 395.0 3.0 1.99
3 1333.0 1.25 -3.92
3 2023.0 2.88 2.99
3 2406.0 2.38 2.19
3 11476.0 0.79 -5.43
3 15150.0 1.27 -1.16
Download

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

Dayton Audio B452-AIR filters_auto_eq

AutomaticEQ

Dayton Audio B452-AIR filters_eq_full

Target v.s. EQ

Dayton Audio B452-AIR
Graphic EQ 15 bands
Set preamp gain to: -0.2dB.
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 0.25
3 630.0 2.14 0.0
3 1000.0 2.14 -0.25
3 1600.0 2.14 -0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.25
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.

Dayton Audio B452-AIR
Graphic EQ 31 bands
Set preamp gain to: -0.2dB.
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 0.25
3 500.0 4.32 0.0
3 630.0 4.32 0.0
3 800.0 4.32 -0.25
3 1000.0 4.32 -0.25
3 1250.0 4.32 -0.5
3 1600.0 4.32 -0.25
3 2000.0 4.32 0.25
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 -0.5
3 10000.0 4.32 -0.75
3 12000.0 4.32 -0.75
3 16000.0 4.32 -0.75
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Dayton Audio B452-AIR: comparison between EQs
Dayton Audio B452-AIR

Comparison betweens various EQs

Dayton Audio B452-AIR

Improvements made by EQ

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