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 .
  • Sensitivity:
    • Sensitivity: 92.0dB (avg. 100Hz-1kHz for 2.83V estimated at 1m).
    • Sensitivity: 72.0dB computed at the measurement distance (10.0m) over the same frequency range.
  • -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.
  • Directivity
    • Horizontal directivity is (-40.0°, 40.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • 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

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

Bose AMM108 filters_auto_eq

AutomaticEQ

Bose AMM108 filters_eq_full

Target v.s. EQ

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

These 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

These EQ is designed for a 31 bands graphical EQ.

Bose AMM108: comparison between EQs
Bose AMM108

Comparison betweens various EQs

Bose AMM108

Improvements made by EQ
CEA2034
CEA2034 Normalized
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
CEA2034
CEA2034 Normalized
On Axis
Early Reflections
Estimated In-Room Response
Horizontal Reflections
Vertical Reflections
SPL Horizontal
SPL Vertical
SPL Horizontal Normalized
SPL Vertical Normalized
SPL Horizontal Contour
SPL Vertical Contour
SPL Horizontal Contour Normalized
SPL Vertical Contour Normalized
SPL Horizontal Contour 3D
SPL Vertical Contour 3D
SPL Horizontal Contour Normalized 3D
SPL Vertical Contour Normalized 3D
SPL Horizontal Radar
SPL Vertical Radar
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ
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