Might look at McCormack amps and pre's. Local dealer drives a pair of Vandersteen 5's with a DNA225 and the setup sounds outstanding. You can find used 225's for around 1600 here on the Gon and I have read upgrades are great but, have not heard any upgraded units myself. Look into the Odyssey Stratos. Call the number and the owner answers the phone is very helpful. 30 money back if you don't like them. Haven't heard any Marsh gear, sorry. Good luck!
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