Infinity Primus 150 is a passive floorstanders that cost around 200 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is Misc.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity:
    • Company: 88 dB
    • Measured: 74.7 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 68.3Hz (resp. 62.6Hz).
  • Reference level is normalised to 0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.19 and would be 7.03 with a perfect subwoofer.
      • Details: NBD: ON 0.431, LW 0.386, SP 0.411, PIR 0.368; SM: SP0.844, PIR0.66; LFQ 2.159, LFX 66Hz
    • Tonality (Preference) Score is 4.95 with an EQ and would be 7.77 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.325, LW 0.282, SP 0.326, PIR 0.277; SM: SP0.883, PIR0.744; LFQ 2.159, LFX 65Hz
  • Link to original Review: asr review. .
Infinity Primus 150

Vendor specifications

  • Impedance 8 Ohm
  • Size
    • Width 187mm
    • Height 322mm
    • Depth 252mm
  • Weight 6kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -1.7dB.
Type Freq Q Gain
PK 98.0 2.29 -1.71
PK 139.0 1.15 -2.88
PK 155.0 0.26 1.92
PK 409.0 0.87 -2.23
PK 504.0 2.95 1.45
PK 792.0 1.12 3.0
PK 879.0 2.99 -4.1
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Quick config:
Quick config:
Quick config:
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