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
PK 65.0 0.29 -3.65
PK 942.0 3.0 -2.14
PK 2491.0 1.76 -5.96
PK 3068.0 1.39 1.51
PK 7566.0 2.81 1.31
PK 8110.0 0.97 -6.08
PK 14134.0 0.99 -4.35
Download

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
PK 25.0 2.14 0.0
PK 40.0 2.14 0.0
PK 63.0 2.14 0.0
PK 100.0 2.14 0.0
PK 160.0 2.14 0.0
PK 250.0 2.14 0.0
PK 400.0 2.14 0.25
PK 630.0 2.14 0.25
PK 1000.0 2.14 -0.25
PK 1600.0 2.14 0.0
PK 2500.0 2.14 -0.5
PK 4000.0 2.14 -0.25
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.75
PK 16000.0 2.14 -0.5
Download

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
PK 20.0 4.32 0.0
PK 25.0 4.32 0.0
PK 31.0 4.32 0.0
PK 40.0 4.32 0.0
PK 50.0 4.32 0.0
PK 63.0 4.32 0.0
PK 80.0 4.32 0.0
PK 100.0 4.32 0.0
PK 125.0 4.32 0.0
PK 160.0 4.32 0.0
PK 200.0 4.32 0.0
PK 250.0 4.32 0.0
PK 315.0 4.32 0.0
PK 400.0 4.32 0.25
PK 500.0 4.32 0.25
PK 630.0 4.32 0.25
PK 800.0 4.32 0.25
PK 1000.0 4.32 0.0
PK 1250.0 4.32 0.25
PK 1600.0 4.32 0.0
PK 2000.0 4.32 -0.25
PK 2500.0 4.32 -0.5
PK 3150.0 4.32 -0.25
PK 4000.0 4.32 -0.25
PK 5000.0 4.32 -0.25
PK 6300.0 4.32 -0.5
PK 8000.0 4.32 -0.75
PK 10000.0 4.32 -0.75
PK 12000.0 4.32 -0.75
PK 16000.0 4.32 -0.5
PK 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
Frequency Frequency with EQ
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