BSX Subwoofer (Big-Subwoofer-eXtender)

So far the Big-Subwoofer-eXtender is the biggest TW AUDiO sub to date.
Equipped with two powerful 21" drivers with a peak performance potential of 10 kW per driver, this speaker is able to reproduce a truly massive bass foundation.
Thanks to the hybrid enclosure principle its efficiency is...