What we know about the measurement:

Audio Engine A5+ Powered is an active bookshelves that cost around 400 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 .
  • -3dB (resp. -6db) point v.s. reference is at 68.8Hz (resp. 58.6Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.7dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.85 and would be 7.32 with a perfect subwoofer.
      • Details: NBD: ON 0.49, LW 0.426, SP 0.359, PIR 0.347; SM: SP0.928, PIR0.82; LFQ 0.367, LFX 54Hz
    • Tonality (Preference) Score is 6.11 with an EQ and would be 8.48 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.326, LW 0.268, SP 0.28, PIR 0.212; SM: SP0.982, PIR0.967; LFQ 0.367, LFX 51Hz
  • Link to Original review.
Audio Engine A5+ Powered
AutomaticEQ (IIR)
Set preamp gain to: -2.8dB.
Type Freq Q Gain
5 76.0 1.03 2.98
3 221.0 1.96 1.52
3 309.0 1.65 3.0
3 547.0 1.97 2.35
3 646.0 2.4 -0.35
3 1704.0 2.94 1.34
3 3555.0 2.83 2.47
3 4202.0 2.77 -2.26
5 4966.0 0.99 -1.14
Download

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

Audio Engine A5+ Powered filters_auto_eq

AutomaticEQ

Audio Engine A5+ Powered filters_eq_full

Target v.s. EQ

Audio Engine A5+ Powered
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.5
3 100.0 2.14 -0.25
3 160.0 2.14 -0.25
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 -0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 0.0
3 10000.0 2.14 0.0
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Audio Engine A5+ Powered
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.5
3 63.0 4.32 0.5
3 80.0 4.32 0.0
3 100.0 4.32 -0.25
3 125.0 4.32 -0.25
3 160.0 4.32 0.0
3 200.0 4.32 0.25
3 250.0 4.32 0.5
3 315.0 4.32 0.5
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 -0.25
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 0.0
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 0.25
3 8000.0 4.32 0.25
3 10000.0 4.32 0.25
3 12000.0 4.32 0.25
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.

Audio Engine A5+ Powered: comparison between EQs
Audio Engine A5+ Powered

Comparison betweens various EQs

Audio Engine A5+ Powered

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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