What we know about the measurement:

OS Acoustics DBS8 is an active bookshelves that cost around 2800 USD each.

  • Quality of the measurement data is low.
  • Origin of the data is Sound and Recording.
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 48.5Hz (resp. 42.8Hz).
  • Reference level is normalised to 0.4dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.6dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.13 and would be 8.1 with a perfect subwoofer.
      • Details: NBD: ON 0.29, LW 0.239, SP 0.438, PIR 0.295; SM: SP0.818, PIR0.874; LFQ 1.557, LFX 41Hz
    • Tonality (Preference) Score is 6.7 with an EQ and would be 8.47 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.271, LW 0.221, SP 0.352, PIR 0.229; SM: SP0.848, PIR0.928; LFQ 1.557, LFX 37Hz
  • Link to original Review: sr review. Links to other reviews: sos review .
  • Vendor specifications:
    • Dispersion: 90° horizontal and 50° vertical.
    • Sensitivity 92 dB
    • Impedance 8 Ohm
    • Size
      • Width 256mm
      • Height 422mm
      • Depth 261 mm)
    • Weight 10.0 kg
OS Acoustics DBS8
AutomaticEQ (IIR)
Set preamp gain to: -1.9dB.
Type Freq Q Gain
3 42.0 1.33 3.0
3 80.0 0.69 -2.19
3 621.0 2.96 -1.7
3 1202.0 2.92 -0.86
3 3289.0 1.0 -1.76
3 6585.0 2.94 -1.36
3 9001.0 0.64 0.41
Download

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

OS Acoustics DBS8 filters_auto_eq

AutomaticEQ

OS Acoustics DBS8 filters_eq_full

Target v.s. EQ

OS Acoustics DBS8
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 -0.25
3 100.0 2.14 -0.25
3 160.0 2.14 -0.25
3 250.0 2.14 -0.25
3 400.0 2.14 0.0
3 630.0 2.14 -0.25
3 1000.0 2.14 0.0
3 1600.0 2.14 0.25
3 2500.0 2.14 0.0
3 4000.0 2.14 -0.5
3 6300.0 2.14 0.0
3 10000.0 2.14 0.25
3 16000.0 2.14 0.25
Download

These EQ is designed for a 15 bands graphical EQ.

OS Acoustics DBS8
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.5
3 31.0 4.32 0.5
3 40.0 4.32 0.5
3 50.0 4.32 0.25
3 63.0 4.32 0.0
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 0.0
3 400.0 4.32 0.0
3 500.0 4.32 0.0
3 630.0 4.32 0.0
3 800.0 4.32 0.0
3 1000.0 4.32 0.0
3 1250.0 4.32 0.0
3 1600.0 4.32 0.25
3 2000.0 4.32 0.0
3 2500.0 4.32 0.0
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.25
3 5000.0 4.32 0.0
3 6300.0 4.32 0.0
3 8000.0 4.32 0.25
3 10000.0 4.32 0.25
3 12000.0 4.32 0.25
3 16000.0 4.32 0.25
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

OS Acoustics DBS8: comparison between EQs
OS Acoustics DBS8

Comparison betweens various EQs

OS Acoustics DBS8

Improvements made by EQ

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