What we know about the measurement:

Fulcrum Acoustic RX8 is an active liveportable

  • Quality of the measurement data is medium.
  • Origin of the data is Fulcrum Acoustic.
  • Format of the data is a GLL file .
  • Warning: this measurement was already process with an equalizer.
  • -3dB (resp. -6db) point v.s. reference is at 109.0Hz (resp. 92.5Hz).
  • Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.3dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.82 and would be 6.23 with a perfect subwoofer.
      • Details: NBD: ON 0.505, LW 0.475, SP 0.725, PIR 0.573; SM: SP0.78, PIR0.658; LFQ 1.042, LFX 90Hz
    • Tonality (Preference) Score is 4.15 with an EQ and would be 7.35 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.377, LW 0.336, SP 0.611, PIR 0.445; SM: SP0.875, PIR0.837; LFQ 1.042, LFX 79Hz
  • Vendor specifications:
    • Dispersion: 90° horizontal and 75° vertical.
    • Sensitivity 93 dB
    • SPL
      • continuous: 116 dB
      • peak: 122 dB
    • Size
      • Width 323mm
      • Height 229mm
      • Depth 235mm
    • Weight 6.4kg
Fulcrum Acoustic RX8
AutomaticEQ (IIR)
Set preamp gain to: -4.6dB.
Type Freq Q Gain
PK 92.0 2.41 2.99
PK 109.0 0.68 3.0
PK 121.0 2.99 -1.74
PK 178.0 1.02 -2.42
PK 1010.0 1.55 -1.19
PK 1046.0 2.92 1.99
PK 11882.0 0.5 -2.01
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This EQ optimise the Harman score and is a good start for far field listening like in your living room.
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)
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