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 measured 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
PK 46.0 0.62 2.97
PK 121.0 1.32 -1.59
PK 344.0 2.9 0.47
PK 1586.0 0.95 -2.4
PK 2579.0 1.43 1.75
PK 4989.0 1.69 -1.07
PK 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
HP 54.6 1.16 0.0
PK 120.0 1.6 -2.0
PK 962.0 6.0 -1.48
PK 1343.0 5.2 -2.1
PK 1830.0 3.11 -1.55
PK 2608.0 1.14 2.17
PK 4552.0 1.0 -1.0
PK 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
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 0.0
PK 160.0 2.14 -0.25
PK 250.0 2.14 0.0
PK 400.0 2.14 0.0
PK 630.0 2.14 0.0
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 -0.5
PK 10000.0 2.14 -0.5
PK 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
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 0.0
PK 125.0 4.32 -0.25
PK 160.0 4.32 -0.25
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
PK 500.0 4.32 0.0
PK 630.0 4.32 0.0
PK 800.0 4.32 0.0
PK 1000.0 4.32 -0.5
PK 1250.0 4.32 -0.5
PK 1600.0 4.32 -0.5
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 0.0
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 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
Frequency Frequency with EQ
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