What we know about the measurement:

Infinity RC252 is a passive center

  • Quality of the measurement data is medium.
  • Origin of the data is Infinity.
  • Format of the data is a scanned image .
  • Sensitivity: 85.9dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 87.2Hz (resp. 61.7Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.22 and would be 7.91 with a perfect subwoofer.
      • Details: NBD: ON 0.35, LW 0.252, SP 0.272, PIR 0.236; SM: SP0.872, PIR0.777; LFQ 1.209, LFX 60Hz
    • Tonality (Preference) Score is 6.37 with an EQ and would be 8.66 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.259, LW 0.183, SP 0.244, PIR 0.185; SM: SP0.957, PIR0.941; LFQ 1.209, LFX 49Hz
  • Link to Original review.
Infinity RC252
AutomaticEQ (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
PK 51.0 0.66 2.97
PK 117.0 2.2 -1.41
PK 190.0 2.93 0.68
PK 487.0 2.07 0.56
PK 2168.0 2.99 -1.42
PK 11085.0 0.84 1.52
PK 11882.0 0.26 -3.1
Download

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

Infinity RC252 filters_auto_eq

AutomaticEQ

Infinity RC252 filters_eq_full

Target v.s. EQ

Infinity RC252
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
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 0.25
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 -0.25
PK 1600.0 2.14 0.25
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 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Infinity RC252
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.25
PK 125.0 4.32 0.0
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 0.0
PK 500.0 4.32 0.0
PK 630.0 4.32 0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 -0.25
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.25
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 -0.5
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Infinity RC252: comparison between EQs
Infinity RC252

Comparison betweens various EQs

Infinity RC252

Improvements made by EQ

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