What we know about the measurement:

Ascend Acoustics Horizon Center is a passive center that cost around 1490 USD

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 89.7dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 63.0Hz (resp. 51.3Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.1dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-70.0°, 70.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 5.38 and would be 7.57 with a perfect subwoofer.
      • Details: NBD: ON 0.437, LW 0.408, SP 0.406, PIR 0.362; SM: SP0.953, PIR0.891; LFQ 1.332, LFX 46Hz
    • Tonality (Preference) Score is 6.29 with an EQ and would be 8.02 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.373, LW 0.32, SP 0.355, PIR 0.304; SM: SP0.959, PIR0.94; LFQ 1.332, LFX 36Hz
  • Vertical measurement
  • Link to Original review.
Ascend Acoustics Horizon Center
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
PK 34.0 2.63 3.0
PK 621.0 2.98 -1.51
PK 849.0 2.95 -1.53
PK 1010.0 2.99 2.16
PK 2862.0 2.67 1.33
PK 9319.0 0.37 -2.7
PK 15685.0 0.28 2.64
Download

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

Ascend Acoustics Horizon Center filters_auto_eq

AutomaticEQ

Ascend Acoustics Horizon Center filters_eq_full

Target v.s. EQ

Ascend Acoustics Horizon Center
flipflop@ASR (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
PK 348.0 10.0 1.4
PK 379.0 18.0 -1.1
PK 401.0 10.0 1.2
PK 461.0 16.0 -1.4
PK 497.0 22.0 1.2
PK 509.0 5.0 5.2
PK 555.0 3.293 -4.6
PK 746.0 5.0 17.1
PK 749.0 5.0 -17.8
PK 1024.0 5.0 1.7
PK 1226.0 12.0 -0.4
PK 1370.0 18.0 0.9
PK 1570.0 2.313 1.4
PK 1811.0 1.0 -0.7
PK 3598.0 1.927 3.1
PK 3614.0 5.0 -4.1
PK 5037.0 3.123 -0.6
PK 8343.0 1.0 -0.8
PK 9230.0 5.5 -0.3
PK 14800.0 3.0 0.8
Download

These EQ is designed by ASR member flipflop.

Ascend Acoustics Horizon Center
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 25.0 2.14 0.5
PK 40.0 2.14 0.5
PK 63.0 2.14 0.5
PK 100.0 2.14 0.0
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
PK 400.0 2.14 0.25
PK 630.0 2.14 -0.25
PK 1000.0 2.14 0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.0
PK 6300.0 2.14 0.0
PK 10000.0 2.14 0.0
PK 16000.0 2.14 0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Ascend Acoustics Horizon Center
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.5
PK 31.0 4.32 0.5
PK 40.0 4.32 0.5
PK 50.0 4.32 0.5
PK 63.0 4.32 0.5
PK 80.0 4.32 0.0
PK 100.0 4.32 0.0
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.0
PK 500.0 4.32 0.25
PK 630.0 4.32 -0.25
PK 800.0 4.32 0.0
PK 1000.0 4.32 0.25
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.0
PK 2000.0 4.32 0.0
PK 2500.0 4.32 0.25
PK 3150.0 4.32 0.25
PK 4000.0 4.32 0.0
PK 5000.0 4.32 0.0
PK 6300.0 4.32 0.0
PK 8000.0 4.32 0.0
PK 10000.0 4.32 0.0
PK 12000.0 4.32 0.25
PK 16000.0 4.32 0.25
PK 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Ascend Acoustics Horizon Center: comparison between EQs
Ascend Acoustics Horizon Center

Comparison betweens various EQs

Ascend Acoustics Horizon 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
Frequency Frequency with EQ
;