What we know about the measurement:

PSI Audio A21-M is a active bookshelves speaker that cost around 3100USD each .

  • Quality of the measurement data is low .
  • Data is from Sound and Recording .
  • Format of the data is a scanned image .
  • -3dB (resp. -6db) point v.s. reference is at 36.5Hz (resp. 33.6Hz).
  • Reference level is normalised to 0.6dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 1.9dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.2 and would be 7.8 with a perfect subwoofer.
      • Details: NBD: ON 0.3, LW 0.36, SP 0.45, PIR 0.38; SM: SP0.91, PIR0.87; LFQ 1.87, LFX 34Hz
    • Tonality (Preference) Score is 7.0 with an EQ and would be 8.5 with a perfect subwoofer and the same EQ.
      • Details: NBD: ON 0.2, LW 0.23, SP 0.38, PIR 0.29; SM: SP0.94, PIR0.92; LFQ 1.87, LFX 32Hz
  • Link to Original review.
  • Vendor specifications:
    • Dispersion: 80° horizontal and 30° vertical.
    • SPL
      • max: 106 dB
      • peak: 121 dB
    • Size
      • Width 250mm
      • Height 400mm
      • Depth 300 mm)
    • Weight 12.8 kg
CEA2034
On Axis
Estimated In-Room Response
CEA2034
On Axis
Estimated In-Room Response
Frequency Frequency with EQ
Frequency Frequency with EQ
Frequency Frequency with EQ