What we know about the measurement:

Definitive Technology D9 is a passive bookshelves speaker .

  • Quality of the measurement data is low .
  • Origin of the data is Misc.
  • Format of the data is a scanned image .
  • Sensitivity: 77.3dB (avg. 100Hz-1kHz for 2.83V measured at 1m)
  • -3dB (resp. -6db) point v.s. reference is at 51.6Hz (resp. 48.5Hz).
  • Reference level is normalised to 0.5dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.7dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 4.0 and would be 6.23 with a perfect subwoofer.
      • Details: NBD: ON 0.517, LW 0.407, SP 0.47, PIR 0.435; SM: SP0.761, PIR0.493; LFQ 0.261, LFX 47Hz
    • Tonality (Preference) Score is 5.41 with an EQ and would be 7.59 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.398, LW 0.337, SP 0.413, PIR 0.335; SM: SP0.897, PIR0.819; LFQ 0.261, LFX 46Hz
  • Link to original Review: asr review. .
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ