What we know about the measurement:
SunAudio Purified 4 4XA25B Alu+Berryllium is a passive bookshelves that cost around 3228 USD for a pair.
- Quality of the measurement data is medium.
- Origin of the data is SunAudio.
- Format of the data is a set of 36 horizontal and 36 vertical measurements .
- Sensitivity: 77.6dB (avg. 100Hz-1kHz for 2.83V estimated at 1m) . Sensitivity computed at the measurement distance (2.5m) over the same frequency range: 77.6dB.
- -3dB (resp. -6db) point v.s. reference is at 70.3Hz (resp. 61.7Hz).
- Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
- Frequency deviation is 1.3dB over the same frequency range.
- Directivity
- Horizontal directivity is (-80.0°, 80.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-30.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Tonality (Preference) Score
- Tonality (Preference) Score is 6.66
and would be 9.37 with a
perfect subwoofer.
- Details: NBD: ON 0.127, LW 0.078, SP 0.12, PIR 0.087; SM: SP0.979, PIR0.978; LFQ 0.489, LFX 61Hz
- Tonality (Preference) Score is 6.66
and would be 9.37 with a
perfect subwoofer.
- Link to Original review.
- Note: Crossover Woofer: BW12 @ 2158Hz Tweeter: BW12 @ 4146Hz. Measurements done at 2.5 meter..