GR Research AV123 is a passive center that cost around 500 USD

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity:
    • Measured: 86.4 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 67.4Hz (resp. 58.6Hz).
  • 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 1.03 and would be 3.64 with a perfect subwoofer.
      • Details: NBD: ON 0.832, LW 0.725, SP 0.735, PIR 0.672; SM: SP0.121, PIR0.02; LFQ 1.899, LFX 58Hz
    • Tonality (Preference) Score is 4.59 with an EQ and would be 7.2 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.549, LW 0.432, SP 0.442, PIR 0.366; SM: SP0.86, PIR0.855; LFQ 1.899, LFX 58Hz
  • Link to original Review: asr review. .
GR Research AV123
AutomaticEQ (IIR)
Set preamp gain to: -7.2dB.
Type Freq Q Gain
PK 85.0 3.0 -7.56
PK 172.0 1.0 8.0
PK 279.0 2.85 -3.79
PK 1202.0 1.09 0.85
PK 2094.0 2.26 -2.23
PK 6818.0 0.5 -1.99
PK 13186.0 2.77 -2.29
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
AutomaticEQ LW (IIR)
Set preamp gain to: -6.8dB.
Type Freq Q Gain
PK 56.0 0.94 7.99
PK 83.0 2.14 -12.99
PK 172.0 0.91 7.39
PK 279.0 2.99 -3.83
PK 1954.0 0.79 1.96
PK 2023.0 1.73 -4.36
PK 13186.0 2.11 -1.95
Download
This EQ optimise for a flat listening window and is a good start for near field listening like on your desk.
AutomaticEQ Score (IIR)
Set preamp gain to: -7.2dB.
Type Freq Q Gain
PK 85.0 3.0 -7.56
PK 172.0 1.0 8.0
PK 279.0 2.85 -3.79
PK 1202.0 1.09 0.85
PK 2094.0 2.26 -2.23
PK 6818.0 0.5 -1.99
PK 13186.0 2.77 -2.29
Download
Quick config:
Quick config:
Quick config:
;