What we know about the measurement:

Presonus ULT12 is an active liveportable that cost around 1000 USD for a pair.

  • Quality of the measurement data is medium.
  • Origin of the data is Presonus.
  • Format of the data is a GLL file .
  • -3dB (resp. -6db) point v.s. reference is at 65.0Hz (resp. 58.0Hz).
  • Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 3.3dB over the same frequency range.
  • Directivity
    • Horizontal directivity is (-50.0°, 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 0.08 and would be 2.74 with a perfect subwoofer.
      • Details: NBD: ON 0.974, LW 0.975, SP 0.969, PIR 0.943; SM: SP0.427, PIR0.132; LFQ 1.904, LFX 60Hz
    • Tonality (Preference) Score is 2.59 with an EQ and would be 5.07 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.811, LW 0.814, SP 0.83, PIR 0.784; SM: SP0.847, PIR0.754; LFQ 1.904, LFX 54Hz
Presonus ULT12
AutomaticEQ (IIR)
Set preamp gain to: -3.0dB.
Type Freq Q Gain
5 148.0 1.3 2.02
3 253.0 2.99 3.0
3 342.0 2.98 2.01
3 404.0 0.45 -0.9
3 1541.0 0.75 2.34
3 2380.0 2.46 -2.95
3 3438.0 2.99 2.0
3 6276.0 0.78 -2.94
3 8478.0 1.28 -2.97
Download

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

Presonus ULT12 filters_auto_eq

AutomaticEQ

Presonus ULT12 filters_eq_full

Target v.s. EQ

Presonus ULT12
Graphic EQ 15 bands
Set preamp gain to: -1.0dB.
Type Freq Q Gain
3 25.0 2.14 0.75
3 40.0 2.14 0.75
3 63.0 2.14 0.75
3 100.0 2.14 0.0
3 160.0 2.14 0.0
3 250.0 2.14 1.0
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 0.25
3 2500.0 2.14 -0.5
3 4000.0 2.14 -0.5
3 6300.0 2.14 -0.5
3 10000.0 2.14 -0.75
3 16000.0 2.14 0.0
Download

These EQ is designed for a 15 bands graphical EQ.

Presonus ULT12
Graphic EQ 31 bands
Set preamp gain to: -1.1dB.
Type Freq Q Gain
3 20.0 4.32 0.0
3 25.0 4.32 0.75
3 31.0 4.32 0.75
3 40.0 4.32 0.75
3 50.0 4.32 0.75
3 63.0 4.32 0.75
3 80.0 4.32 0.25
3 100.0 4.32 0.0
3 125.0 4.32 0.5
3 160.0 4.32 0.0
3 200.0 4.32 0.0
3 250.0 4.32 1.0
3 315.0 4.32 0.5
3 400.0 4.32 0.0
3 500.0 4.32 -0.25
3 630.0 4.32 0.25
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 0.25
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 -0.25
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 0.0
3 20000.0 4.32 0.0
Download

These EQ is designed for a 31 bands graphical EQ.

Presonus ULT12: comparison between EQs
Presonus ULT12

Comparison betweens various EQs

Presonus ULT12

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
;