I had a DJ mixer identical to your one for many years ( Badged KAM ) Is a very robustly constructed unit ( inbuild PSU ) .. as a professional club DJ mine one was subjected to many thousands of hours use ( so much that all the labeling was worn off ) Allow subject to much abuse. It never failed for a single moment.. This is a truly dependable little mixer.. ( almost forgot, I purchased my one in 1996 )