Polk Audio Atrium 4 is a passive outdoor speaker that cost around 117CHF for a pair .
- -3dB (resp. -6db) point v.s. reference is at 113.0Hz (resp. 95.0Hz).
- Reference level is normalised to -0.0dB computed over the frequency range [300.0Hz, 10000.0Hz].
- Frequency deviation is 5.5dB over the same frequency range.
- Horizontal directivity is (-69.0°, 88.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Vertical directivity is (-41.0°, 58.0°) between 1kHz and 10kHz. Angle computed for +/-6dB.
- Preference Score is 1.0 and would be 4.5 with a perfect subwoofer.
- Score compononent details: NBD: ON 0.74, LW 0.63, SP 0.55, PIR 0.53; SM: SP0.46, PIR0.12; LFQ 0.35, LFX 98Hz
- Link to Original review.