What we know about the measurement:

Buchardt Audio A500 is an active bookshelves that cost around 4100 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 24.9Hz (resp. 23.4Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.8dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 50.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.62 and would be 7.51 with a perfect subwoofer.
      • Details: NBD: ON 0.266, LW 0.286, SP 0.313, PIR 0.278; SM: SP0.811, PIR0.574; LFQ 1.157, LFX 23Hz
    • Tonality (Preference) Score is 7.8 with an EQ and would be 8.7 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.217, LW 0.213, SP 0.261, PIR 0.196; SM: SP0.953, PIR0.928; LFQ 1.157, LFX 23Hz
  • Link to original Review: eac review. Links to other reviews: yt review .
Buchardt Audio A500
AutomaticEQ (IIR)
Set preamp gain to: -2.0dB.
Type Freq Q Gain
5 24.0 1.16 2.76
3 87.0 0.8 -0.63
3 207.0 1.69 0.75
3 691.0 2.8 1.26
3 2226.0 1.63 2.25
3 2813.0 1.42 -0.23
3 3438.0 1.76 -0.18
3 7930.0 2.53 0.9
3 11843.0 0.58 -1.62
Download

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

Buchardt Audio A500 filters_auto_eq

AutomaticEQ

Buchardt Audio A500 filters_eq_full

Target v.s. EQ

Buchardt Audio A500
Graphic EQ 15 bands
Set preamp gain to: -0.1dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 -0.25
3 63.0 2.14 -0.25
3 100.0 2.14 -0.25
3 160.0 2.14 0.0
3 250.0 2.14 0.0
3 400.0 2.14 0.0
3 630.0 2.14 0.0
3 1000.0 2.14 0.0
3 1600.0 2.14 -0.25
3 2500.0 2.14 0.25
3 4000.0 2.14 -0.5
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.

Buchardt Audio A500
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 0.0
3 31.0 4.32 0.0
3 40.0 4.32 -0.25
3 50.0 4.32 -0.25
3 63.0 4.32 -0.25
3 80.0 4.32 -0.25
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 0.0
3 250.0 4.32 0.0
3 315.0 4.32 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.25
3 800.0 4.32 0.25
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 0.25
3 2000.0 4.32 0.5
3 2500.0 4.32 0.5
3 3150.0 4.32 0.25
3 4000.0 4.32 0.0
3 5000.0 4.32 0.0
3 6300.0 4.32 0.0
3 8000.0 4.32 0.0
3 10000.0 4.32 0.0
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.

Buchardt Audio A500: comparison between EQs
Buchardt Audio A500

Comparison betweens various EQs

Buchardt Audio A500

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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