What we know about the measurement:
Yamaha NS-6490 is a passive bookshelves speaker that cost around 130USD for a pair .
- Quality of the measurement data is high .
- Origin of the data is ASR .
- Format of the data is generated by a Klippel NFS .
- Sensitivity: 87.8dB (avg. 100Hz-1kHz for 2.83V measured at 1m)
- -3dB (resp. -6db) point v.s. reference is at 20.5Hz (resp. 71.8Hz).
- Reference level is normalised to 0.8dB computed over the frequency range [300.0Hz, 5000.0Hz].
- Frequency deviation is 6.3dB over the same frequency range.
- Directivity
- Horizontal directivity is (-20.0°, 20.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-10.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Tonality (Preference) Score
- Tonality (Preference) Score is 1.8
and would be 4.6 with a
perfect subwoofer.
- Details: NBD: ON 0.75, LW 0.72, SP 0.64, PIR 0.65; SM: SP0.75, PIR0.33; LFQ 1.33, LFX 64Hz
- Tonality (Preference) Score is 4.7
with an EQ and would be 6.5 with a
perfect subwoofer and the same EQ.
- Details: NBD: ON 0.63, LW 0.61, SP 0.56, PIR 0.56; SM: SP0.92, PIR0.87; LFQ 1.12, LFX 36Hz
- Tonality (Preference) Score is 1.8
and would be 4.6 with a
perfect subwoofer.
- Link to Original review.
