Es ist möglich den Cubo 12 mit einem DL 12 ST von elektrovoice zu betreiben.
I think that's a proper German answer
The DL 12 ST is not a very high power driver, that seems to be designed for use in mid bass cabinets (low Xmax, small voice coil). So while it will be usable in Cubo 12, it is only a decent low power option in combination with a proper high pass around 50 Hz or up.
Cubo