What we know about the measurement:

Onkyo GX 30ARC is an active bookshelves that cost around 349 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • -3dB (resp. -6db) point v.s. reference is at 74.0Hz (resp. 64.5Hz).
  • Reference level is normalised to -0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.87 and would be 5.6 with a perfect subwoofer.
      • Details: NBD: ON 0.528, LW 0.469, SP 0.454, PIR 0.438; SM: SP0.726, PIR0.236; LFQ 0.29, LFX 62Hz
    • Tonality (Preference) Score is 5.38 with an EQ and would be 7.84 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.348, LW 0.297, SP 0.396, PIR 0.346; SM: SP0.936, PIR0.891; LFQ 0.29, LFX 54Hz
  • Link to original Review: eac review. .
  • Vendor specifications:
    • Size
      • Width 176mm
      • Height 422mm
      • Depth 265mm
    • Weight 2.8kg
Onkyo GX 30ARC
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 52.0 0.52 2.69
PK 102.0 3.0 -3.95
PK 117.0 1.54 2.67
PK 382.0 0.71 2.53
PK 1121.0 2.29 -3.11
PK 1954.0 2.89 -1.41
PK 11085.0 0.5 -2.43
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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