What we know about the measurement:

Diapason Emera is a passive bookshelves that cost around 1000 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 86.6dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 124.5Hz (resp. 87.9Hz).
  • Reference level is normalised to -0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 8.4dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-40.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.73 and would be 5.1 with a perfect subwoofer.
      • Details: NBD: ON 0.756, LW 0.491, SP 0.335, PIR 0.342; SM: SP0.623, PIR0.143; LFQ 0.571, LFX 87Hz
    • Tonality (Preference) Score is 5.48 with an EQ and would be 7.5 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.635, LW 0.395, SP 0.294, PIR 0.266; SM: SP0.961, PIR0.946; LFQ 0.526, LFX 42Hz
  • Link to Original review.
Diapason Emera
AutomaticEQ (IIR)
Set preamp gain to: -5.0dB.
Type Freq Q Gain
3 49.0 0.58 2.99
3 125.0 0.25 2.49
3 879.0 1.23 -2.7
3 2094.0 2.97 -1.93
3 2579.0 2.97 3.0
3 7566.0 1.91 -3.17
3 15150.0 2.96 -1.79
Download

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

Diapason Emera filters_auto_eq

AutomaticEQ

Diapason Emera filters_eq_full

Target v.s. EQ

Diapason Emera
flipflop@ASR (IIR)
Set preamp gain to: -2.3dB.
Type Freq Q Gain
3 490.0 2.0 0.6
3 557.0 15.0 -1.2
3 569.0 5.0 -1.8
3 728.0 5.0 1.0
3 791.0 18.0 -0.9
3 911.0 1.589 -4.8
3 1380.0 13.0 0.6
3 1854.0 2.179 -2.7
3 2216.0 5.0 -1.8
3 2523.0 5.0 2.9
3 2767.0 5.0 -7.1
3 2803.0 4.998 10.5
3 3140.0 5.0 -5.7
3 3483.0 5.0 2.3
3 3987.0 5.0 -3.8
3 4286.0 1.968 4.4
3 7126.0 1.582 -3.9
3 13519.0 5.0 -2.0
3 14894.0 5.0 -2.7
3 15994.0 5.0 -2.4
Download

These EQ is designed by ASR member flipflop.

Diapason Emera
Graphic EQ 15 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.75
3 160.0 2.14 0.75
3 250.0 2.14 0.5
3 400.0 2.14 0.5
3 630.0 2.14 0.0
3 1000.0 2.14 -0.5
3 1600.0 2.14 -0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

Diapason Emera
Graphic EQ 31 bands
Set preamp gain to: -1.2dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.75
3 100.0 4.32 0.75
3 125.0 4.32 0.75
3 160.0 4.32 0.75
3 200.0 4.32 0.5
3 250.0 4.32 0.5
3 315.0 4.32 0.5
3 400.0 4.32 0.5
3 500.0 4.32 0.25
3 630.0 4.32 0.0
3 800.0 4.32 -0.25
3 1000.0 4.32 -0.5
3 1250.0 4.32 -0.25
3 1600.0 4.32 -0.25
3 2000.0 4.32 -0.25
3 2500.0 4.32 0.25
3 3150.0 4.32 0.25
3 4000.0 4.32 0.0
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 -0.25
3 12000.0 4.32 -0.25
3 16000.0 4.32 0.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Diapason Emera: comparison between EQs
Diapason Emera

Comparison betweens various EQs

Diapason Emera

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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