SunAudio Purified 4 4XA25A tw35mm is a passive bookshelves that cost around 2800 USD for a pair.

  • Quality of the measurement data is high.
  • Origin of the data is SunAudio.
  • Format of the data is a set of 36 horizontal and 36 vertical measurements .
  • Sensitivity:
    • Measured: 81.1 dB (avg. 300Hz-3kHz for 2.83V estimated at 1m).
    • Measured: 71.6 dB computed at the measurement distance (3.0m) over the same frequency range.
  • -3dB (resp. -6db) point v.s. reference is at 73.4Hz (resp. 56.6Hz).
  • Reference level is normalised to -0.3dB computed over the frequency range [300.0Hz, 5000.0Hz].
  • Frequency deviation is 2.0dB over the same frequency range.
  • Tonality (Preference) Score
    • Tonality (Preference) Score is 6.21 and would be 8.81 with a perfect subwoofer.
      • Details: NBD: ON 0.197, LW 0.167, SP 0.229, PIR 0.171; SM: SP0.922, PIR0.919; LFQ 0.983, LFX 58Hz
  • Link to Original review.
  • Note: Sun Audio Purified 4 XP25A with a 35mm tweeter: crossover: Woofer: BW12 @ 1495Hz Tweeter: BW18 @ 2201Hz. Measurements are done at 3m.
SunAudio Purified 4 4XA25A tw35mm
Quick config:
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