What we know about the measurement:
System One S-15B is a passive bookshelves that cost around 130 USD for a pair.
- Quality of the measurement data is low.
- Origin of the data is Misc.
- Format of the data is a set of 36 horizontal and 36 vertical measurements .
- Sensitivity: 65.5dB (avg. 100Hz-1kHz for 2.83V measured at 1m).
- -3dB (resp. -6db) point v.s. reference is at 127.0Hz (resp. 97.9Hz).
- Reference level is normalised to -0.1dB computed over the frequency range [300.0Hz, 5000.0Hz].
- Frequency deviation is 3.9dB over the same frequency range.
- Directivity
- Horizontal directivity is (-60.0°, 60.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-20.0°, 10.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Tonality (Preference) Score
- Tonality (Preference) Score is 1.13
and would be 4.52 with a
perfect subwoofer.
- Details: NBD: ON 0.796, LW 0.551, SP 0.423, PIR 0.433; SM: SP0.66, PIR0.049; LFQ 0.425, LFX 88Hz
- Tonality (Preference) Score is 5.32
with an EQ and would be 7.44 with a
perfect subwoofer and the same EQ.
- Details: NBD: ON 0.627, LW 0.367, SP 0.334, PIR 0.282; SM: SP0.951, PIR0.932; LFQ 0.626, LFX 44Hz
- Tonality (Preference) Score is 1.13
and would be 4.52 with a
perfect subwoofer.
- Link to original Review: asr review. .
- Note: Tweeter polarity was fixed before measuring. Out of the box, the speaker is worse!.
-
Vendor specifications:
- Sensitivity 86 dB
- Impedance 4 Ohm
- Size
- Width 185mm
- Height 300mm
- Depth 225 mm)
- Weight 3.25 kg
