What we know about the measurement:

JBL 708P is an active bookshelves that cost around 3600 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 .
  • -3dB (resp. -6db) point v.s. reference is at 43.9Hz (resp. 39.6Hz).
  • 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 4.78 and would be 6.66 with a perfect subwoofer.
      • Details: NBD: ON 0.424, LW 0.408, SP 0.39, PIR 0.389; SM: SP0.777, PIR0.515; LFQ 1.013, LFX 39Hz
    • Tonality (Preference) Score is 6.24 with an EQ and would be 8.11 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.359, LW 0.322, SP 0.305, PIR 0.286; SM: SP0.965, PIR0.941; LFQ 1.013, LFX 39Hz
  • Link to original Review: eac review. Links to other reviews: asr review .
  • Vendor specifications:
    • SPL
      • max: 108 dB
      • peak: 114 dB
    • Size
      • Width 250mm
      • Height 441mm
      • Depth 419mm
    • Weight 18.1kg
JBL 708P
AutomaticEQ (IIR)
Set preamp gain to: -1.1dB.
Type Freq Q Gain
PK 109.0 1.25 -0.71
PK 540.0 2.56 1.16
PK 942.0 2.98 -2.96
PK 1202.0 1.74 1.8
PK 3525.0 2.84 -1.49
PK 7059.0 1.56 -2.44
PK 13652.0 1.98 -4.83
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
JBL 708P
flipflop@ASR (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
PK 475.0 6.0 1.1
PK 667.0 8.0 -1.2
PK 747.0 10.0 2.9
PK 915.0 3.8 -2.8
PK 1135.0 5.0 2.0
PK 1340.0 15.0 -0.6
PK 1565.0 7.0 2.4
PK 1752.0 12.0 -1.0
PK 1925.0 15.0 1.5
PK 2304.0 11.0 2.5
PK 2520.0 15.0 -1.4
PK 2740.0 17.0 1.2
PK 2980.0 15.0 -0.7
PK 3680.0 12.0 -1.2
PK 4480.0 10.0 0.8
PK 5060.0 5.0 -0.5
PK 7350.0 1.8 -1.4
PK 9300.0 6.0 1.8
PK 10700.0 7.0 1.6
PK 14150.0 2.0 -1.9
Download
This EQ is designed by ASR member flipflop.
JBL 708P
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 0.0
PK 100.0 2.14 -0.25
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 -0.25
PK 1600.0 2.14 0.25
PK 2500.0 2.14 0.0
PK 4000.0 2.14 -0.25
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 -0.5
Download
This EQ is designed for a 15 bands graphical EQ.
JBL 708P
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.5
PK 31.0 4.32 0.5
PK 40.0 4.32 0.5
PK 50.0 4.32 0.25
PK 63.0 4.32 0.0
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 -0.25
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 0.25
PK 630.0 4.32 0.0
PK 800.0 4.32 -0.25
PK 1000.0 4.32 -0.25
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.25
PK 2000.0 4.32 0.0
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 -0.5
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.5
PK 16000.0 4.32 -0.5
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)
JBL 708P: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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