What we know about the measurement:

Jamo S803 is a passive bookshelves that cost around 150 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: 80.2dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 60.1Hz (resp. 54.2Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.9dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.7 and would be 5.22 with a perfect subwoofer.
      • Details: NBD: ON 0.524, LW 0.464, SP 0.424, PIR 0.4; SM: SP0.219, PIR0.018; LFQ 0.819, LFX 55Hz
    • Tonality (Preference) Score is 5.54 with an EQ and would be 7.91 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.413, LW 0.368, SP 0.331, PIR 0.281; SM: SP0.948, PIR0.904; LFQ 0.819, LFX 51Hz
  • Link to original Review: eac review. .
Jamo S803
AutomaticEQ (IIR)
Set preamp gain to: -1.9dB.
Type Freq Q Gain
3 51.0 1.36 3.0
3 88.0 1.6 -5.61
3 279.0 0.79 1.92
3 1202.0 2.92 1.1
3 3068.0 1.53 -2.87
3 6585.0 0.95 -3.5
3 14633.0 0.67 -6.17
Download

These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Jamo S803 filters_auto_eq

AutomaticEQ

Jamo S803 filters_eq_full

Target v.s. EQ

Jamo S803
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 -0.5
3 160.0 2.14 0.0
3 250.0 2.14 0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.25
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.5
3 16000.0 2.14 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Jamo S803
Graphic EQ 31 bands
Set preamp gain to: -0.4dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.25
3 31.0 4.32 0.25
3 40.0 4.32 0.25
3 50.0 4.32 0.25
3 63.0 4.32 0.0
3 80.0 4.32 -0.5
3 100.0 4.32 -0.5
3 125.0 4.32 -0.25
3 160.0 4.32 0.0
3 200.0 4.32 0.0
3 250.0 4.32 0.25
3 315.0 4.32 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 0.0
3 2000.0 4.32 -0.25
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.5
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.5
3 8000.0 4.32 -0.5
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.5
3 16000.0 4.32 -0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Jamo S803: comparison between EQs
Jamo S803

Comparison betweens various EQs

Jamo S803

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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