JBL L52 Classic is a passive bookshelves that cost around 1000 USD each.

  • 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: 85 dB
    • Measured: 85.1 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 64.5Hz (resp. 54.2Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.66 and would be 7.08 with a perfect subwoofer.
      • Details: NBD: ON 0.522, LW 0.419, SP 0.385, PIR 0.364; SM: SP0.895, PIR0.77; LFQ 0.857, LFX 52Hz
    • Tonality (Preference) Score is 6.01 with an EQ and would be 8.24 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.381, LW 0.292, SP 0.292, PIR 0.228; SM: SP0.943, PIR0.945; LFQ 0.761, LFX 47Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
JBL L52 Classic

Vendor specifications

  • Impedance 4 Ohm
  • Size
    • Width 197mm
    • Height 330mm
    • Depth 216mm
  • Weight 5kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -2.2dB.
Type Freq Q Gain
PK 54.0 1.0 2.97
PK 98.0 1.35 -3.74
PK 260.0 0.83 1.04
PK 849.0 2.95 2.17
PK 1429.0 1.62 -1.83
PK 3779.0 2.36 -1.48
PK 5536.0 2.97 0.75
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
AutomaticEQ LW (IIR)
Set preamp gain to: -1.9dB.
Type Freq Q Gain
PK 65.0 3.0 2.98
PK 98.0 1.51 -2.92
PK 227.0 2.94 1.21
PK 321.0 2.96 0.53
PK 792.0 2.72 1.9
PK 1586.0 2.42 -1.97
PK 10707.0 0.55 1.43
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This EQ optimise for a flat listening window and is a good start for near field listening like on your desk.
Quick config:
Quick config:
Quick config:
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