Hello....I'm not familiar with the Marsh gear but I have owned the original krell kav 300i and just bought the 300il.If your into simplicity and great performace go with the new krell.I love this integrated a much smoother more powerfull version with a new look and feel that make it best in class for my money.If your thinking of the McCormack separates I can highly recommend one of the original DNA series with one of Steve's upgrades.Fantastic amps,great value.
