The SW 1000 Be subwoofer is the redesigned version of the Electra Be subwoofer to ensure compatibility with the other loudspeakers in the Sopra line. It is equipped with a 13" (33cm) "W" cone speaker driver (high rigidity for no distortion, even at high volumes), a high-power 600 W RMS BASH® amplifier and a front laminar port (no dynamic bass compression).

The 24-bit digital processor (DSP) offers a large control panel with settings for adapting the sub to various listening rooms. The SW 1000 Be offers very high performance with a bass cut-off frequency of 18 Hz and an SPL of 118 dB.

Several SW 1000 Be subwoofers can be linked up.