The reason it has two designations is because it shipped as a set with the Lead and Bass 20 Heads. The Lead model is the 2022, and the Bass is the 2019 model.
The cabinets were never sold individually, so they don't have a model designation. These cabs are thought to have followed up the 4x10 cabs that were previously offered with the 2022/2019
This model features a 25w Celestion Speaker that has lost its back cover.
