What we know about the measurement:

Infinity R152 is a passive bookshelves that cost around 350 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is Infinity.
  • Format of the data is a scanned image .
  • Sensitivity: 86.1dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 87.2Hz (resp. 59.6Hz).
  • Reference level is normalised to 0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.07 and would be 7.5 with a perfect subwoofer.
      • Details: NBD: ON 0.356, LW 0.334, SP 0.273, PIR 0.279; SM: SP0.858, PIR0.665; LFQ 0.458, LFX 53Hz
    • Tonality (Preference) Score is 6.4 with an EQ and would be 8.54 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.299, LW 0.233, SP 0.246, PIR 0.206; SM: SP0.964, PIR0.958; LFQ 0.787, LFX 45Hz
Infinity R152
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
3 46.0 0.62 2.97
3 121.0 1.32 -1.59
3 344.0 2.9 0.47
3 1586.0 0.95 -2.4
3 2579.0 1.43 1.75
3 4989.0 1.69 -1.07
3 16239.0 0.25 -3.22
Download

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

Infinity R152 filters_auto_eq

AutomaticEQ

Infinity R152 filters_eq_full

Target v.s. EQ

Infinity R152
maiky76@ASR (IIR)
Set preamp gain to: -1.8dB.
Type Freq Q Gain
1 54.6 1.16 0.0
3 120.0 1.6 -2.0
3 962.0 6.0 -1.48
3 1343.0 5.2 -2.1
3 1830.0 3.11 -1.55
3 2608.0 1.14 2.17
3 4552.0 1.0 -1.0
3 14244.0 0.97 -1.66
Download

These EQ is designed by ASR member maiky76. These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Infinity R152
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 0.0
3 160.0 2.14 -0.25
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 -0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.5
3 16000.0 2.14 -0.75
Download

These EQ is designed for a 15 bands graphical EQ.

Infinity R152
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 0.0
3 125.0 4.32 -0.25
3 160.0 4.32 -0.25
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 -0.5
3 1250.0 4.32 -0.5
3 1600.0 4.32 -0.5
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 0.0
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 -0.25
3 16000.0 4.32 -0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Infinity R152: comparison between EQs
Infinity R152

Comparison betweens various EQs

Infinity R152

Improvements made by EQ

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