What we know about the measurement:

Bose 901 Series V is an active bookshelves

  • Quality of the measurement data is unknown.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • -3dB (resp. -6db) point v.s. reference is at 55.8Hz (resp. 44.9Hz).
  • Reference level is normalised to -1.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 8.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.69 and would be 3.37 with a perfect subwoofer.
      • Details: NBD: ON 1.439, LW 1.293, SP 0.874, PIR 0.802; SM: SP0.709, PIR0.72; LFQ 2.705, LFX 35Hz
    • Tonality (Preference) Score is 3.63 with an EQ and would be 4.23 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 1.369, LW 1.191, SP 0.781, PIR 0.732; SM: SP0.916, PIR0.926; LFQ 2.558, LFX 20Hz
  • Link to original Review: eac review. Links to other reviews: asr review .
Bose 901 Series V
AutomaticEQ (IIR)
Set preamp gain to: -8.3dB.
Type Freq Q Gain
PK 55.0 0.26 2.99
PK 125.0 0.27 2.98
PK 547.0 0.83 -2.92
PK 668.0 0.56 -2.76
PK 844.0 0.47 -2.83
PK 2813.0 2.04 -2.8
PK 3325.0 0.35 -2.71
PK 6709.0 2.84 -2.74
LS 14965.0 0.44 2.98
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Bose 901 Series V
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
PK 25.0 2.14 0.25
PK 40.0 2.14 0.25
PK 63.0 2.14 0.25
PK 100.0 2.14 -0.5
PK 160.0 2.14 -1.0
PK 250.0 2.14 -1.25
PK 400.0 2.14 -1.5
PK 630.0 2.14 -1.5
PK 1000.0 2.14 -1.0
PK 1600.0 2.14 -0.75
PK 2500.0 2.14 -1.0
PK 4000.0 2.14 -0.5
PK 6300.0 2.14 -0.5
PK 10000.0 2.14 -0.25
PK 16000.0 2.14 1.0
Download
This EQ is designed for a 15 bands graphical EQ.
Bose 901 Series V
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.25
PK 31.0 4.32 0.25
PK 40.0 4.32 0.25
PK 50.0 4.32 0.25
PK 63.0 4.32 0.0
PK 80.0 4.32 -0.25
PK 100.0 4.32 -0.5
PK 125.0 4.32 -0.75
PK 160.0 4.32 -1.0
PK 200.0 4.32 -1.0
PK 250.0 4.32 -1.25
PK 315.0 4.32 -1.25
PK 400.0 4.32 -1.25
PK 500.0 4.32 -1.5
PK 630.0 4.32 -1.25
PK 800.0 4.32 -1.25
PK 1000.0 4.32 -1.0
PK 1250.0 4.32 -1.0
PK 1600.0 4.32 -0.75
PK 2000.0 4.32 -0.75
PK 2500.0 4.32 -1.0
PK 3150.0 4.32 -0.75
PK 4000.0 4.32 -0.5
PK 5000.0 4.32 -0.5
PK 6300.0 4.32 -0.5
PK 8000.0 4.32 0.0
PK 10000.0 4.32 -0.25
PK 12000.0 4.32 0.75
PK 16000.0 4.32 0.75
PK 20000.0 4.32 0.0
Download
This EQ is designed for a 31 bands graphical EQ.
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)
Bose 901 Series V: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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