What we know about the measurement:

Emotiva Airmotiv B2+ is a passive bookshelves that cost around 450 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is ErinsAudioCorner.
  • Format of the data is generated by a Klippel NFS .
  • Sensitivity: 85.2dB (avg. 100Hz-1kHz for 2.83V estimated at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 71.8Hz (resp. 54.2Hz).
  • Reference level is normalised to 0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.6dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
    • Vertical directivity is (-30.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.52 and would be 6.89 with a perfect subwoofer.
      • Details: NBD: ON 0.305, LW 0.264, SP 0.312, PIR 0.244; SM: SP0.708, PIR0.301; LFQ 0.594, LFX 51Hz
    • Tonality (Preference) Score is 6.56 with an EQ and would be 8.64 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.267, LW 0.213, SP 0.276, PIR 0.203; SM: SP0.952, PIR0.962; LFQ 0.593, LFX 43Hz
  • Link to original Review: eac review. .
Emotiva Airmotiv B2+
AutomaticEQ (IIR)
Set preamp gain to: -2.9dB.
Type Freq Q Gain
5 84.0 0.29 2.86
3 253.0 1.24 1.65
3 494.0 2.61 1.99
3 604.0 2.9 -1.94
3 1648.0 0.93 1.55
3 2380.0 2.8 -0.44
3 3676.0 2.66 -1.79
3 5870.0 0.77 -0.37
3 11454.0 0.65 -1.84
Download

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

Emotiva Airmotiv B2+ filters_auto_eq

AutomaticEQ

Emotiva Airmotiv B2+ filters_eq_full

Target v.s. EQ

Emotiva Airmotiv B2+
Graphic EQ 15 bands
Set preamp gain to: -0.3dB.
Type Freq Q Gain
3 25.0 2.14 0.25
3 40.0 2.14 0.25
3 63.0 2.14 0.25
3 100.0 2.14 0.0
3 160.0 2.14 0.0
3 250.0 2.14 0.0
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 0.0
3 2500.0 2.14 -0.25
3 4000.0 2.14 -0.75
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.75
3 16000.0 2.14 -0.5
Download

These EQ is designed for a 15 bands graphical EQ.

Emotiva Airmotiv B2+
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 0.25
3 125.0 4.32 0.25
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 0.25
3 400.0 4.32 0.25
3 500.0 4.32 0.25
3 630.0 4.32 -0.25
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 -0.25
3 3150.0 4.32 -0.25
3 4000.0 4.32 -0.5
3 5000.0 4.32 -0.25
3 6300.0 4.32 -0.25
3 8000.0 4.32 -0.25
3 10000.0 4.32 -0.5
3 12000.0 4.32 -0.5
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.

Emotiva Airmotiv B2+: comparison between EQs
Emotiva Airmotiv B2+

Comparison betweens various EQs

Emotiva Airmotiv B2+

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
;