What we know about the measurement:

Infinity Prelude MTS is a passive floorstanders

  • Quality of the measurement data is medium.
  • Origin of the data is Infinity.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 26.9Hz (resp. 20.1Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.1dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 7.55 and would be 8.16 with a perfect subwoofer.
      • Details: NBD: ON 0.288, LW 0.247, SP 0.366, PIR 0.256; SM: SP0.882, PIR0.848; LFQ 1.364, LFX 20Hz
    • Tonality (Preference) Score is 8.11 with an EQ and would be 8.72 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.252, LW 0.234, SP 0.273, PIR 0.179; SM: SP0.948, PIR0.952; LFQ 1.364, LFX 20Hz
  • Link to Original review.
Infinity Prelude MTS
AutomaticEQ (IIR)
Set preamp gain to: -2.5dB.
Type Freq Q Gain
PK 25.0 2.53 2.67
PK 36.0 2.01 -0.49
PK 109.0 1.23 -0.59
PK 1480.0 0.61 -0.63
PK 2168.0 2.94 2.24
PK 3177.0 0.81 -1.26
PK 6361.0 2.98 -0.75
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Infinity Prelude MTS
Graphic EQ 15 bands
Set preamp gain to: -0.5dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 -0.25
PK 63.0 2.14 -0.5
PK 100.0 2.14 -0.25
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 -0.25
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 0.0
PK 16000.0 2.14 0.5
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This EQ is designed for a 15 bands graphical EQ.
Infinity Prelude MTS
Graphic EQ 31 bands
Set preamp gain to: -0.2dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.0
PK 40.0 4.32 -0.25
PK 50.0 4.32 -0.25
PK 63.0 4.32 -0.25
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.25
PK 125.0 4.32 -0.25
PK 160.0 4.32 0.0
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 -0.25
PK 630.0 4.32 0.0
PK 800.0 4.32 -0.25
PK 1000.0 4.32 -0.25
PK 1250.0 4.32 -0.25
PK 1600.0 4.32 -0.25
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.0
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 0.0
PK 10000.0 4.32 0.0
PK 12000.0 4.32 0.0
PK 16000.0 4.32 0.25
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
Infinity Prelude MTS: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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