What we know about the measurement:

Perlisten a3m is a passive bookshelves that cost around 1500 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is Perlisten.
  • Format of the data is .
  • -3dB (resp. -6db) point v.s. reference is at 85.8Hz (resp. 74.1Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.61 and would be 7.64 with a perfect subwoofer.
      • Details: NBD: ON 0.417, LW 0.377, SP 0.339, PIR 0.301; SM: SP0.887, PIR0.821; LFQ 1.231, LFX 73Hz
    • Tonality (Preference) Score is 5.72 with an EQ and would be 8.41 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.321, LW 0.267, SP 0.284, PIR 0.226; SM: SP0.957, PIR0.952; LFQ 1.13, LFX 61Hz
  • Link to original Review: vendor review. .
  • Note: Warning: measurements provided by vendor (Perlisten) are smoothed.
  • Vendor specifications:
    • Sensitivity 87.4 dB
    • Impedance 4 Ohm
    • SPL
      • max: 111 dB
    • Size
      • Width 280mm
      • Height 675mm
      • Depth 350mm
Perlisten a3m
AutomaticEQ (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
PK 879.0 1.22 -2.35
PK 130.0 0.74 -7.45
PK 369.0 2.11 -1.78
PK 85.0 0.44 3.0
PK 942.0 3.0 3.0
PK 8397.0 0.49 -2.6
PK 102.0 0.25 3.0
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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