What we know about the measurement:

RBH Sound R-515 is a passive bookshelves

  • Quality of the measurement data is low.
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 88.0dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
  • -3dB (resp. -6db) point v.s. reference is at 249.5Hz (resp. 249.5Hz).
  • Reference level is normalised to 1.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 5.8dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is -0.54 and would be 4.78 with a perfect subwoofer.
      • Details: NBD: ON 0.655, LW 0.528, SP 0.441, PIR 0.434; SM: SP0.29, PIR0.015; LFQ 10.0, LFX 249Hz
    • Tonality (Preference) Score is 2.57 with an EQ and would be 7.89 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.478, LW 0.32, SP 0.313, PIR 0.231; SM: SP0.858, PIR0.903; LFQ 10.0, LFX 249Hz
  • Link to Original review.
RBH Sound R-515
AutomaticEQ (IIR)
Set preamp gain to: -0.0dB.
Type Freq Q Gain
3 65.0 0.29 -3.65
3 942.0 3.0 -2.14
3 2491.0 1.76 -5.96
3 3068.0 1.39 1.51
3 7566.0 2.81 1.31
3 8110.0 0.97 -6.08
3 14134.0 0.99 -4.35
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

RBH Sound R-515 filters_auto_eq

AutomaticEQ

RBH Sound R-515 filters_eq_full

Target v.s. EQ

RBH Sound R-515
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
3 25.0 2.14 0.0
3 40.0 2.14 0.0
3 63.0 2.14 0.0
3 100.0 2.14 0.0
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 0.25
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 -0.25
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.5
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These EQ is designed for a 15 bands graphical EQ.

RBH Sound R-515
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 0.0
3 31.0 4.32 0.0
3 40.0 4.32 0.0
3 50.0 4.32 0.0
3 63.0 4.32 0.0
3 80.0 4.32 0.0
3 100.0 4.32 0.0
3 125.0 4.32 0.0
3 160.0 4.32 0.0
3 200.0 4.32 0.0
3 250.0 4.32 0.0
3 315.0 4.32 0.0
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 0.25
3 800.0 4.32 0.25
3 1000.0 4.32 0.0
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 -0.25
3 4000.0 4.32 -0.25
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.5
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.

RBH Sound R-515: comparison between EQs
RBH Sound R-515

Comparison betweens various EQs

RBH Sound R-515

Improvements made by EQ

Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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