What we know about the measurement:

Atlantic Technology 8600eC Center is a passive center that cost around 1750 USD

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 88.2dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 60.1Hz (resp. 52.7Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.2dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) 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 2.23 and would be 4.65 with a perfect subwoofer.
      • Details: NBD: ON 0.697, LW 0.563, SP 0.534, PIR 0.496; SM: SP0.441, PIR0.08; LFQ 2.255, LFX 52Hz
    • Tonality (Preference) Score is 5.67 with an EQ and would be 7.81 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.507, LW 0.322, SP 0.32, PIR 0.249; SM: SP0.925, PIR0.922; LFQ 1.965, LFX 45Hz
  • Link to original Review: avs review. .
Atlantic Technology 8600eC Center
AutomaticEQ (IIR)
Set preamp gain to: -2.7dB.
Type Freq Q Gain
3 46.0 1.85 3.0
3 88.0 2.44 -3.86
3 197.0 1.75 2.04
3 424.0 2.96 1.4
3 2862.0 3.0 2.67
3 4495.0 1.81 -3.49
3 12736.0 0.9 -2.95
Download

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

Atlantic Technology 8600eC Center filters_auto_eq

AutomaticEQ

Atlantic Technology 8600eC Center filters_eq_full

Target v.s. EQ

Atlantic Technology 8600eC Center
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 -0.25
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 0.0
3 1600.0 2.14 0.0
3 2500.0 2.14 0.0
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 -0.25
Download

These EQ is designed for a 15 bands graphical EQ.

Atlantic Technology 8600eC Center
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 0.25
3 80.0 4.32 -0.25
3 100.0 4.32 -0.25
3 125.0 4.32 0.0
3 160.0 4.32 0.25
3 200.0 4.32 0.25
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 0.0
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 -0.25
3 2000.0 4.32 -0.25
3 2500.0 4.32 0.0
3 3150.0 4.32 0.0
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.5
3 6300.0 4.32 -0.5
3 8000.0 4.32 -0.25
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.5
3 16000.0 4.32 -0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Atlantic Technology 8600eC Center: comparison between EQs
Atlantic Technology 8600eC Center

Comparison betweens various EQs

Atlantic Technology 8600eC Center

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
;