I have just recently finished my first bass speaker cabinet project. I had an old JBL D-140 orange basket laying around and had it re-coned. This cab was built acording to JBL's specs for their smallest 15" enclosure. Acording to the tech that did the re-cone, JBL ONLY makes E kits as a replacement. My question is, Should I now call it an E-140? And if so, Are the specs and power rating that of an "E"?