What we know about the measurement:

Adam A5X is an active bookshelves that cost around 500 USD for a pair.

  • 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 58.6Hz (resp. 52.7Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.17 and would be 6.59 with a perfect subwoofer.
      • Details: NBD: ON 0.588, LW 0.543, SP 0.426, PIR 0.438; SM: SP0.884, PIR0.727; LFQ 0.687, LFX 52Hz
    • Tonality (Preference) Score is 5.37 with an EQ and would be 7.74 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.453, LW 0.409, SP 0.333, PIR 0.308; SM: SP0.958, PIR0.909; LFQ 0.687, LFX 51Hz
  • Link to Original review.
Adam A5X
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
PK 54.0 2.97 2.9
PK 102.0 1.45 -2.34
PK 1083.0 3.0 3.0
PK 1288.0 2.99 -2.32
PK 1954.0 2.66 2.91
PK 3650.0 0.32 -1.4
PK 10341.0 2.27 -1.47
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Adam A5X
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.25
PK 100.0 2.14 -0.5
PK 160.0 2.14 -0.25
PK 250.0 2.14 0.0
PK 400.0 2.14 0.0
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.25
PK 4000.0 2.14 -0.25
PK 6300.0 2.14 -0.25
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 0.25
Download
This EQ is designed for a 15 bands graphical EQ.
Adam A5X
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.25
PK 63.0 4.32 0.25
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.25
PK 125.0 4.32 -0.25
PK 160.0 4.32 -0.25
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
PK 500.0 4.32 0.0
PK 630.0 4.32 -0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.0
PK 1250.0 4.32 -0.25
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.25
PK 2500.0 4.32 0.0
PK 3150.0 4.32 -0.25
PK 4000.0 4.32 -0.25
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 0.0
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
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)
Adam A5X: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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