What we know about the measurement:

Adam D3V is an active bookshelves that cost around 309 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 50.5Hz (resp. 47.6Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.27 and would be 7.5 with a perfect subwoofer.
      • Details: NBD: ON 0.357, LW 0.342, SP 0.341, PIR 0.321; SM: SP0.849, PIR0.719; LFQ 0.212, LFX 47Hz
    • Tonality (Preference) Score is 6.08 with an EQ and would be 8.31 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.311, LW 0.289, SP 0.286, PIR 0.255; SM: SP0.953, PIR0.933; LFQ 0.212, LFX 47Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
  • Vendor specifications:
    • SPL
      • max: 90 dB
      • peak: 97 dB
    • Size
      • Width 115mm
      • Height 200mm
      • Depth 150mm
    • Weight 1.87kg
Adam D3V
AutomaticEQ (IIR)
Set preamp gain to: -2.0dB.
Type Freq Q Gain
PK 51.0 1.56 2.0
PK 1202.0 2.95 -1.03
PK 9001.0 0.25 2.91
PK 2765.0 1.0 -2.07
PK 3912.0 0.5 2.99
PK 8397.0 0.5 -6.8
PK 910.0 2.69 -0.8
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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