What we know about the measurement:

Revel M55XC is a passive outdoor that cost around 420 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ASR.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 83.3dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 112.8Hz (resp. 90.8Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.2dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-70.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 30.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 2.11 and would be 5.63 with a perfect subwoofer.
      • Details: NBD: ON 0.453, LW 0.419, SP 0.418, PIR 0.396; SM: SP0.703, PIR0.116; LFQ 0.63, LFX 95Hz
    • Tonality (Preference) Score is 5.57 with an EQ and would be 8.57 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.256, LW 0.217, SP 0.259, PIR 0.218; SM: SP0.947, PIR0.94; LFQ 0.63, LFX 71Hz
  • Link to Original review.
Revel M55XC
AutomaticEQ (IIR)
Set preamp gain to: -4.2dB.
Type Freq Q Gain
3 88.0 1.62 2.99
3 149.0 1.37 -3.86
3 219.0 0.25 2.99
3 1202.0 2.98 -2.65
3 1480.0 2.98 2.01
3 3779.0 0.42 -3.6
3 11476.0 2.44 -0.96
Download

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

Revel M55XC filters_auto_eq

AutomaticEQ

Revel M55XC filters_eq_full

Target v.s. EQ

Revel M55XC
flipflop@ASR (IIR)
Set preamp gain to: -0.2dB.
Type Freq Q Gain
3 357.0 3.5 0.4
3 537.0 15.0 0.4
3 631.0 15.0 -0.5
3 782.0 7.0 -1.1
3 1148.0 5.0 -1.9
3 1268.0 10.0 -0.5
3 1400.0 8.0 0.5
3 1610.0 5.0 2.6
3 1638.0 1.0 -2.9
3 2330.0 8.0 -0.2
3 2923.0 5.0 1.1
3 3451.0 5.0 1.7
3 3830.0 1.0 -6.3
3 4009.0 5.0 1.8
3 6830.0 8.0 -0.4
3 8023.0 1.0 -2.8
3 8180.0 5.0 0.5
3 13348.0 1.0 -4.0
3 14100.0 2.6 1.4
0 17800.0 0.7071067811865475 0.0
Download

These EQ is designed by ASR member flipflop.

Revel M55XC
Graphic EQ 15 bands
Set preamp gain to: -0.4dB.
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 0.0
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 -0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 -0.5
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.75
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Revel M55XC
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 0.25
3 160.0 4.32 0.0
3 200.0 4.32 0.0
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 0.25
3 630.0 4.32 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 -0.25
3 1250.0 4.32 -0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 -0.25
3 2500.0 4.32 -0.5
3 3150.0 4.32 -0.5
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.75
3 6300.0 4.32 -0.75
3 8000.0 4.32 -0.75
3 10000.0 4.32 -0.75
3 12000.0 4.32 -0.75
3 16000.0 4.32 -0.5
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Revel M55XC: comparison between EQs
Revel M55XC

Comparison betweens various EQs

Revel M55XC

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
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