What we know about the measurement:

RCF ART 725-A MK4 is an active liveportable

  • Quality of the measurement data is low.
  • Origin of the data is RCF.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 106.0Hz (resp. 71.0Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.78 and would be 4.81 with a perfect subwoofer.
      • Details: NBD: ON 0.636, LW 0.64, SP 0.666, PIR 0.631; SM: SP0.5, PIR0.258; LFQ 2.89, LFX 73Hz
    • Tonality (Preference) Score is 4.58 with an EQ and would be 7.45 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.43, LW 0.408, SP 0.472, PIR 0.413; SM: SP0.899, PIR0.894; LFQ 2.528, LFX 67Hz
  • Vendor specifications:
    • Dispersion: 100° horizontal and 60° vertical.
    • SPL
      • peak: 133 dB
    • Size
      • Width 437mm
      • Height 708mm
      • Depth 389mm
    • Weight 19.6kg
RCF ART 725-A MK4
AutomaticEQ (IIR)
Set preamp gain to: -3.1dB.
Type Freq Q Gain
LS 158.0 0.55 2.98
PK 873.0 2.02 2.82
PK 1442.0 2.78 2.98
PK 1948.0 2.87 2.98
PK 3438.0 2.94 1.59
PK 4202.0 2.92 -2.88
PK 7417.0 2.06 -1.66
PK 13092.0 2.87 -2.48
LS 15474.0 0.48 -1.1
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
RCF ART 725-A MK4
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 0.5
PK 160.0 2.14 0.0
PK 250.0 2.14 -0.5
PK 400.0 2.14 -0.25
PK 630.0 2.14 0.0
PK 1000.0 2.14 0.0
PK 1600.0 2.14 0.5
PK 2500.0 2.14 -0.25
PK 4000.0 2.14 -0.5
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 0.0
Download
This EQ is designed for a 15 bands graphical EQ.
RCF ART 725-A MK4
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.5
PK 100.0 4.32 0.5
PK 125.0 4.32 0.25
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 -0.5
PK 315.0 4.32 -0.25
PK 400.0 4.32 -0.25
PK 500.0 4.32 0.0
PK 630.0 4.32 0.0
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.25
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.5
PK 2000.0 4.32 0.5
PK 2500.0 4.32 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 -0.5
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.25
PK 8000.0 4.32 -0.5
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 -0.25
PK 16000.0 4.32 0.0
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
Improvement made by adding the above EQ
EQ
AutoEQ
Target v.s. EQ
Target v.s. EQ
Histogram of errors
On Axis (fullrange)
Listening Window (fullrange)
Predicted In-Room Response (fullrange)
RCF ART 725-A MK4: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
;