Pioneer B20 in Vented Boxes

Pioneer B20 3.0 Cubic Foot Slotted Box

Using standard sized lumber a 3.0 cubic foot box can be built with
internal dimensions of 9.25" x 9.75" x 58" tall.

Basically a large, tall, slim cabinet. Slot out the bottom for an easy build.

This is just a design suggestion. It's never been built to my knowledge.