What we know about the measurement:

RCF NX 985-A is an active liveportable that cost around 1840 USD each.

  • Quality of the measurement data is medium.
  • Origin of the data is RCF.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 43.7Hz (resp. 40.0Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.2dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-10.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.55 and would be 4.5 with a perfect subwoofer.
      • Details: NBD: ON 0.658, LW 0.672, SP 0.787, PIR 0.712; SM: SP0.487, PIR0.254; LFQ 2.956, LFX 41Hz
    • Tonality (Preference) Score is 5.31 with an EQ and would be 7.15 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.47, LW 0.429, SP 0.483, PIR 0.417; SM: SP0.884, PIR0.812; LFQ 2.956, LFX 38Hz
  • Vendor specifications:
    • Dispersion: 100° horizontal and 60° vertical.
    • SPL
      • peak: 138 dB
    • Size
      • Width 461mm
      • Height 1075mm
      • Depth 475 mm)
    • Weight 45.0 kg
RCF NX 985-A
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
3 77.0 2.26 -3.0
3 1731.0 1.56 3.0
3 5361.0 2.99 -5.99
3 210.0 3.0 -1.67
3 567.0 2.99 -1.92
3 12395.0 1.01 -3.23
3 5374.0 3.0 -4.83
3 2989.0 3.0 -2.7
3 2992.0 3.0 -2.24
Download

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

RCF NX 985-A filters_auto_eq

AutomaticEQ

RCF NX 985-A filters_eq_full

Target v.s. EQ

RCF NX 985-A
Graphic EQ 15 bands
Set preamp gain to: -0.6dB.
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 0.0
3 250.0 2.14 0.0
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 0.5
3 2500.0 2.14 0.0
3 4000.0 2.14 0.0
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.25
3 16000.0 2.14 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

RCF NX 985-A
Graphic EQ 31 bands
Set preamp gain to: -0.6dB.
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 0.0
3 63.0 4.32 -0.5
3 80.0 4.32 -0.5
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 0.0
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 0.0
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 0.5
3 2000.0 4.32 0.5
3 2500.0 4.32 -0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 0.0
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 0.0
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.

RCF NX 985-A: comparison between EQs
RCF NX 985-A

Comparison betweens various EQs

RCF NX 985-A

Improvements made by EQ
CEA2034
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
CEA2034
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
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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