Polk Audio Signature S30 is a passive center speaker that cost around 229CHF for a each .
- -3dB (resp. -6db) point v.s. reference is at 72.0Hz (resp. 60.0Hz).
- Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 10000.0Hz].
- Frequency deviation is 4.1dB over the same frequency range.
- Horizontal directivity is (-66.0°, 56.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-56.0°, 25.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Preference Score is 3.8 and would be 6.3 with a perfect subwoofer.
- Score compononent details: NBD: ON 0.64, LW 0.45, SP 0.51, PIR 0.42; SM: SP0.78, PIR0.65; LFQ 0.81, LFX 55Hz
- Vertical measurement
- Link to Original review.