New version has optional depth choices for amp face. Read the profile description
Want exposed knobs for your DIY boombox build but don't want annoying air leaks. This insert can be added to any case and fits your 1001U amp perfectly. It can be sealed in the back by either using the plug or the cap. Add a little silicone or hot glue to cover the wires and hold the end in place.
Check out this video on the case.