The Mark Anthony Class D 1000's I have seen come through this shop used the old DLM4500 module like the old MA4000's, old Autotek's class D's etc. If that module ever goes bad (and it does) then you will not be able to get the amp repaired. Those modules are only available in minimum orders of 500 units from DLogix Corp. And may not be available at all anymore, last I checked was in 2007-ish. The module is self is non-serviceable. Especially if it has the black epoxy over the main chip, which wouldn't do you any good if you get the epoxy off, under there is a DLM chip, still have to get it from DLogix, and again, the minimum order thing. Not worth repairing so no repair shops will venture into buying those modules.