<https://bigjeffaudio.com/products/1x-12-pro-audio-bass-subwoofer-dual-4-ohm-400-watts-timpano-tpt-sw12-4-4>
<http://schema.org/offers>
<https://bigjeffaudio.com/products/1x-12-pro-audio-bass-subwoofer-dual-4-ohm-400-watts-timpano-tpt-sw12-4-4>