Audio First Design Fidelia is a passive bookshelves that cost around 1200 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 .
  • Sensitivity:
    • Company: 84 dB
    • Measured: 83.5 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 52.7Hz (resp. 45.4Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.52 and would be 8.53 with a perfect subwoofer.
      • Details: NBD: ON 0.279, LW 0.236, SP 0.255, PIR 0.208; SM: SP0.96, PIR0.935; LFQ 0.462, LFX 42Hz
    • Tonality (Preference) Score is 6.59 with an EQ and would be 8.36 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.29, LW 0.245, SP 0.239, PIR 0.204; SM: SP0.934, PIR0.867; LFQ 0.462, LFX 37Hz
  • Link to original Review: yt review. .
Audio First Design Fidelia

Vendor specifications

  • Impedance 3.2 Ohm
  • Size
    • Width 180mm
    • Height 300mm
    • Depth 297.6mm
  • Weight 6.8kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
PK 36.0 1.07 2.99
PK 98.0 1.21 -1.45
PK 211.0 0.68 -0.8
PK 621.0 2.97 -0.88
PK 1244.0 2.98 -0.73
PK 1823.0 2.86 -0.73
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Quick config:
Quick config:
Quick config:
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