JL Audio Fathom f212 Subwoofer HT Labs Measures
HT Labs Measures
This graph shows the quasi-anechoic (employing close-miking of all woofers) frequency response of the F212 subwoofer (blue trace).
The F212’s close-miked response, normalized to the level at 80 Hz, indicates that the lower –3dB point is at 20 Hz and the –6dB point is at 18 Hz. The upper –3dB point is at 132 Hz with the LP Filter control set to Off.—MJP