What we know about the measurement:

Bose AMM108 is a passive liveportable that cost around 1500 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is Bose.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 87.5Hz (resp. 82.5Hz).
  • Reference level is normalised to 0.2dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 4.4dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 1.5 and would be 4.75 with a perfect subwoofer.
      • Details: NBD: ON 0.719, LW 0.801, SP 0.837, PIR 0.801; SM: SP0.676, PIR0.542; LFQ 1.232, LFX 82Hz
    • Tonality (Preference) Score is 3.56 with an EQ and would be 6.82 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.513, LW 0.517, SP 0.546, PIR 0.497; SM: SP0.882, PIR0.819; LFQ 1.232, LFX 82Hz
  • .
  • Vendor specifications:
    • Dispersion: 110° horizontal and 60° vertical.
    • Sensitivity 94 dB
    • Impedance 8 Ohm
    • SPL
      • continuous: 116 dB
      • peak: 128 dB
    • Size
      • Width 318mm
      • Height 318mm
      • Depth 268mm
    • Weight 13.04kg
Bose AMM108
AutomaticEQ (IIR)
Set preamp gain to: -2.4dB.
Type Freq Q Gain
PK 129.0 1.21 -2.14
PK 366.0 0.71 -0.9
PK 764.0 2.76 2.22
PK 1032.0 2.8 1.22
PK 1541.0 2.97 2.95
PK 2082.0 2.96 -2.99
PK 3676.0 2.54 1.29
PK 6069.0 2.95 2.97
PK 11454.0 0.48 -2.97
Download
This EQ optimise the Harman score and is a good start for far field listening like in your living room.
Bose AMM108
Graphic EQ 15 bands
Set preamp gain to: -0.9dB.
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 -0.25
PK 160.0 2.14 -0.25
PK 250.0 2.14 0.0
PK 400.0 2.14 0.0
PK 630.0 2.14 0.25
PK 1000.0 2.14 0.5
PK 1600.0 2.14 0.75
PK 2500.0 2.14 0.25
PK 4000.0 2.14 0.25
PK 6300.0 2.14 0.75
PK 10000.0 2.14 0.0
PK 16000.0 2.14 -0.25
Download
This EQ is designed for a 15 bands graphical EQ.
Bose AMM108
Graphic EQ 31 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
PK 20.0 4.32 0.0
PK 25.0 4.32 0.5
PK 31.0 4.32 0.5
PK 40.0 4.32 0.5
PK 50.0 4.32 0.5
PK 63.0 4.32 0.5
PK 80.0 4.32 0.5
PK 100.0 4.32 -0.5
PK 125.0 4.32 -0.5
PK 160.0 4.32 -0.25
PK 200.0 4.32 -0.25
PK 250.0 4.32 -0.25
PK 315.0 4.32 -0.25
PK 400.0 4.32 -0.25
PK 500.0 4.32 0.0
PK 630.0 4.32 0.0
PK 800.0 4.32 0.5
PK 1000.0 4.32 0.5
PK 1250.0 4.32 0.0
PK 1600.0 4.32 0.75
PK 2000.0 4.32 -0.25
PK 2500.0 4.32 0.0
PK 3150.0 4.32 0.0
PK 4000.0 4.32 0.0
PK 5000.0 4.32 -0.5
PK 6300.0 4.32 0.5
PK 8000.0 4.32 -0.25
PK 10000.0 4.32 0.0
PK 12000.0 4.32 -0.25
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 AMM108: comparison between EQs
AutomaticEQ
Target v.s. EQ
Comparison betweens various EQs
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