What we know about the measurement:

Bose AMM112 is a passive liveportable that cost around 2400 USD each.

  • Quality of the measurement data is high.
  • Origin of the data is Bose.
  • Format of the data is a GLL file .
  • Sensitivity: 119.6dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (10m) over the same frequency range: 99.6dB.
  • -3dB (resp. -6db) point v.s. reference is at 87.5Hz (resp. 80.0Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.6dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-40.0°, 50.0°) 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 1.78 and would be 4.98 with a perfect subwoofer.
      • Details: NBD: ON 0.844, LW 0.712, SP 0.763, PIR 0.682; SM: SP0.74, PIR0.623; LFQ 1.983, LFX 79Hz
    • Tonality (Preference) Score is 3.22 with an EQ and would be 6.35 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.788, LW 0.535, SP 0.525, PIR 0.47; SM: SP0.923, PIR0.88; LFQ 1.983, LFX 77Hz
  • .
  • Vendor specifications:
    • Dispersion: 110° horizontal and 60° vertical.
    • Sensitivity 96 dB
    • Impedance 8 Ohm
    • SPL
      • continuous: 121 dB
      • peak: 131 dB
    • Size
      • Width 457mm
      • Height 457mm
      • Depth 383 mm)
    • Weight 22.04 kg
Bose AMM112
AutomaticEQ (IIR)
Set preamp gain to: -1.7dB.
Type Freq Q Gain
6 143.0 1.1 -2.1
3 447.0 3.0 2.89
3 817.0 1.2 2.94
3 1704.0 2.59 -2.6
3 2014.0 2.86 2.7
3 4345.0 1.09 3.0
3 5870.0 2.75 -2.89
3 8199.0 2.96 -2.44
3 14965.0 1.07 -0.66
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These EQ optimise the Harman score and is a good start for far field listening like in your living room.

Bose AMM112 filters_auto_eq

AutomaticEQ

Bose AMM112 filters_eq_full

Target v.s. EQ

Bose AMM112
Graphic EQ 15 bands
Set preamp gain to: -0.7dB.
Type Freq Q Gain
3 25.0 2.14 0.5
3 40.0 2.14 0.5
3 63.0 2.14 0.5
3 100.0 2.14 0.0
3 160.0 2.14 -0.25
3 250.0 2.14 -0.25
3 400.0 2.14 0.25
3 630.0 2.14 0.5
3 1000.0 2.14 0.25
3 1600.0 2.14 0.0
3 2500.0 2.14 0.25
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 -1.25
Download

These EQ is designed for a 15 bands graphical EQ.

Bose AMM112
Graphic EQ 31 bands
Set preamp gain to: -0.8dB.
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 0.5
3 63.0 4.32 0.5
3 80.0 4.32 0.5
3 100.0 4.32 0.0
3 125.0 4.32 0.0
3 160.0 4.32 -0.25
3 200.0 4.32 -0.25
3 250.0 4.32 -0.25
3 315.0 4.32 0.0
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 0.5
3 800.0 4.32 0.25
3 1000.0 4.32 0.25
3 1250.0 4.32 0.25
3 1600.0 4.32 0.0
3 2000.0 4.32 0.5
3 2500.0 4.32 0.25
3 3150.0 4.32 0.25
3 4000.0 4.32 0.5
3 5000.0 4.32 0.5
3 6300.0 4.32 0.0
3 8000.0 4.32 -0.5
3 10000.0 4.32 0.25
3 12000.0 4.32 0.25
3 16000.0 4.32 -1.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Bose AMM112: comparison between EQs
Bose AMM112

Comparison betweens various EQs

Bose AMM112

Improvements made by 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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