What we know about the measurement:

Infinity RC263 is a passive center that cost around 500 USD

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 88.5dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 79.1Hz (resp. 64.5Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.1dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 70.0°) 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 4.76 and would be 7.55 with a perfect subwoofer.
      • Details: NBD: ON 0.453, LW 0.403, SP 0.328, PIR 0.324; SM: SP0.906, PIR0.849; LFQ 1.385, LFX 64Hz
    • Tonality (Preference) Score is 5.7 with an EQ and would be 8.21 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.38, LW 0.301, SP 0.278, PIR 0.235; SM: SP0.957, PIR0.941; LFQ 1.385, LFX 55Hz
  • Link to Original review.
Infinity RC263
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
5 84.0 0.67 2.97
3 378.0 2.14 -1.15
3 714.0 0.65 1.61
3 1394.0 1.36 -2.64
3 1884.0 2.54 1.65
3 2461.0 2.58 -2.98
3 3216.0 0.34 2.41
3 4645.0 2.93 -1.97
3 9372.0 1.28 -0.85
Download

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

Infinity RC263 filters_auto_eq

AutomaticEQ

Infinity RC263 filters_eq_full

Target v.s. EQ

Infinity RC263
flipflop@ASR (IIR)
Set preamp gain to: -1.8dB.
Type Freq Q Gain
3 325.0 18.0 -1.1
3 370.0 13.0 -1.0
3 410.0 13.0 0.5
3 513.0 15.0 1.5
3 580.0 12.0 0.9
3 654.0 15.0 1.6
3 860.0 5.0 1.2
3 1220.0 9.5 -0.8
3 1385.0 12.0 0.5
3 1928.0 12.0 1.4
3 2085.0 20.0 -0.9
3 2420.0 8.5 -3.0
3 2930.0 6.0 -0.4
3 3720.0 9.0 1.3
3 4830.0 6.0 -1.1
3 5760.0 6.0 1.6
3 7510.0 11.0 0.8
3 8550.0 10.0 -0.8
3 10680.0 5.0 -1.1
3 14450.0 2.4 1.6
Download

These EQ is designed by ASR member flipflop.

Infinity RC263
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.25
3 160.0 2.14 0.0
3 250.0 2.14 0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.5
3 1000.0 2.14 0.25
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 0.25
3 6300.0 2.14 0.25
3 10000.0 2.14 0.0
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Infinity RC263
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.25
3 80.0 4.32 0.25
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 0.25
3 630.0 4.32 0.25
3 800.0 4.32 0.25
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
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 0.0
3 4000.0 4.32 0.25
3 5000.0 4.32 0.0
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 0.25
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.

Infinity RC263: comparison between EQs
Infinity RC263

Comparison betweens various EQs

Infinity RC263

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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