What we know about the measurement:

PSB Imagine C3 is a passive center that cost around 2000 USD

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • -3dB (resp. -6db) point v.s. reference is at 56.6Hz (resp. 46.2Hz).
  • Reference level is normalised to 1.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.06 and would be 8.04 with a perfect subwoofer.
      • Details: NBD: ON 0.241, LW 0.249, SP 0.332, PIR 0.255; SM: SP0.802, PIR0.742; LFQ 0.998, LFX 41Hz
    • Tonality (Preference) Score is 7.44 with an EQ and would be 8.88 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.191, LW 0.149, SP 0.249, PIR 0.168; SM: SP0.933, PIR0.939; LFQ 0.831, LFX 31Hz
  • Link to original Review: ark review. .
  • Note: Data is valid above 500Hz; On Axis is valid below 500Hz..
  • Vendor specifications:
    • Sensitivity 89 dB
    • Impedance 4 Ohm
    • Size
      • Width 622mm
      • Height 235mm
      • Depth 346mm
    • Weight 15.2kg
PSB Imagine C3
AutomaticEQ (IIR)
Set preamp gain to: -2.3dB.
Type Freq Q Gain
PK 56.0 0.25 2.99
PK 102.0 1.17 -4.77
PK 235.0 0.73 -1.75
PK 1480.0 2.92 1.47
PK 2491.0 1.98 2.67
PK 3177.0 0.77 -4.08
PK 16239.0 0.35 -0.99
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
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)
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