I have a Modwright Marantz SA8005 and have made some tweeks along the way to improve things. As previous posters have mentioned, fuses are a great start and relatively inexpensive. My Marantz has hard wired fuses but the Modwright PS made a nice improvement with the Synergistic Blue Fuses. Also the ECT's do a nice job of lowering the noise floor and getting rid of hash in the system. The nice thing about Synergistic Research, if you don't like it send it back for a full refund.Good luck
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