What we know about the measurement:

Presonus Eris E3.5 2nd edition is an active bookshelves that cost around 100 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 68.8Hz (resp. 60.1Hz).
  • Reference level is normalised to 0.9dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 7.2dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.11 and would be 3.77 with a perfect subwoofer.
      • Details: NBD: ON 0.801, LW 0.687, SP 0.697, PIR 0.661; SM: SP0.082, PIR0.026; LFQ 0.208, LFX 60Hz
    • Tonality (Preference) Score is 5.05 with an EQ and would be 7.66 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.501, LW 0.371, SP 0.374, PIR 0.314; SM: SP0.96, PIR0.936; LFQ 0.208, LFX 58Hz
  • Link to original Review: eac review. Links to other reviews: asr review .
Presonus Eris E3.5 2nd edition
AutomaticEQ (IIR)
Set preamp gain to: -5.6dB.
Type Freq Q Gain
PK 109.0 1.89 -5.14
PK 252.0 1.39 3.83
PK 424.0 2.95 4.93
PK 487.0 2.84 -5.14
PK 560.0 1.88 5.99
PK 1642.0 2.98 -5.78
PK 8110.0 0.32 -7.57
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Presonus Eris E3.5 2nd edition
Graphic EQ 31 bands
Set preamp gain to: -4.4dB.
Type Freq Q Gain
PK 20.0 4.32 -0.0
PK 25.0 4.32 1.25
PK 31.0 4.32 1.25
PK 40.0 4.32 1.25
PK 50.0 4.32 1.25
PK 63.0 4.32 1.25
PK 80.0 4.32 -0.0
PK 100.0 4.32 -3.0
PK 125.0 4.32 -2.75
PK 160.0 4.32 -0.0
PK 200.0 4.32 1.25
PK 250.0 4.32 2.5
PK 315.0 4.32 2.75
PK 400.0 4.32 3.0
PK 500.0 4.32 2.75
PK 630.0 4.32 3.25
PK 800.0 4.32 1.25
PK 1000.0 4.32 -0.0
PK 1250.0 4.32 -0.0
PK 1600.0 4.32 -4.0
PK 2000.0 4.32 -4.0
PK 2500.0 4.32 -2.75
PK 3150.0 4.32 -3.5
PK 4000.0 4.32 -3.5
PK 5000.0 4.32 -3.25
PK 6300.0 4.32 -3.5
PK 8000.0 4.32 -3.75
PK 10000.0 4.32 -3.75
PK 12000.0 4.32 -2.75
PK 16000.0 4.32 -2.0
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)
Presonus Eris E3.5 2nd edition: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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