I was looking for a reasonable multibox in line with the kambrock we have round our stage. We have the Jackson rack mount units and they are good. These however have really poor guidance on the pins of the plug. Unlike the warehouse Alto brand once the plug is in the grip is good, getting the plug to seat correctly is hard. Twice now we have had issues where something feels like its pluged in properly but it was not. So it's better that The Warehouse Alto brand, but definatly not PDL quality.