What we know about the measurement:

KEF CI250RRM-THX is a passive inwall that cost around 2500 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 51.3Hz (resp. 30.8Hz).
  • Reference level is normalised to 0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Note: The tonality (Preference) score does not make sense for inwall speakers. Don't give too much credits to the value.
    • Tonality (Preference) Score is 3.15 and would be 5.17 with a perfect subwoofer.
      • Details: NBD: ON 0.64, LW 0.436, SP 0.236, PIR 0.307; SM: SP0.429, PIR0.0; LFQ 2.697, LFX 42Hz
    • Tonality (Preference) Score is 5.73 with an EQ and would be 6.85 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.591, LW 0.448, SP 0.355, PIR 0.372; SM: SP0.872, PIR0.759; LFQ 2.694, LFX 26Hz
  • Link to Original review.
  • Vendor specifications:
    • Dispersion: 120° horizontal and 120° vertical.
    • Sensitivity 89 dB
    • Impedance 8 Ohm
    • SPL
      • peak: 111 dB
    • Size
      • Width 346mm
      • Height 175mm
      • Depth 346mm
    • Weight 6.0kg
KEF CI250RRM-THX
AutomaticEQ (IIR)
Set preamp gain to: -5.1dB.
Type Freq Q Gain
PK 47.0 0.25 2.98
PK 160.0 0.25 2.95
PK 211.0 1.27 -2.16
PK 1202.0 1.76 -2.35
PK 1760.0 2.98 -2.13
PK 3405.0 2.88 -2.27
PK 6818.0 2.94 -1.57
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
KEF CI250RRM-THX
AutomaticEQ LW (IIR)
Set preamp gain to: -5.5dB.
Type Freq Q Gain
PK 117.0 0.76 2.86
PK 369.0 1.43 1.88
PK 714.0 1.76 2.18
PK 1288.0 0.72 -2.17
PK 13186.0 0.36 2.63
PK 15685.0 2.44 3.0
Download
This EQ optimise for a flat listening window and is a good start for near field listening like on your desk.
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)
KEF CI250RRM-THX: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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