JBL Stage 250B is a passive bookshelves that cost around 400 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: 86 dB
    • Measured: 85.9 dB (avg. 300Hz-3kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 64.5Hz (resp. 58.6Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.31 and would be 6.86 with a perfect subwoofer.
      • Details: NBD: ON 0.456, LW 0.341, SP 0.449, PIR 0.355; SM: SP0.783, PIR0.592; LFQ 0.391, LFX 56Hz
    • Tonality (Preference) Score is 5.87 with an EQ and would be 8.15 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.37, LW 0.249, SP 0.322, PIR 0.23; SM: SP0.942, PIR0.896; LFQ 0.391, LFX 49Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
JBL Stage 250B

Vendor specifications

  • Impedance 6 Ohm
  • Size
    • Width 200mm
    • Height 321mm
    • Depth 241mm
  • Weight 5.6kg

Directivity (-6dB)

AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 49.0 1.51 2.98
PK 219.0 2.88 1.0
PK 879.0 2.65 -3.1
PK 1010.0 0.68 2.81
PK 1333.0 2.59 2.98
PK 2245.0 0.78 -4.32
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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: -2.7dB.
Type Freq Q Gain
PK 60.0 3.0 2.5
PK 211.0 2.97 0.69
PK 849.0 0.66 2.2
PK 879.0 2.59 -3.48
PK 1288.0 2.97 2.99
PK 2168.0 1.0 -2.73
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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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