I owned a Marsh A-400 and used it to drive my Magnepan 1.6QR. The Marsh was significantly better than the Bryston 4bst and Rotel 150 watter (I forget the model number). The Marsh also beat out the BAT VK-200, but just marginally.
I am not all that familiar with the Harbeth, but if you can run a tube amp you will get better sound. Perhaps, a Rogue 88 (or better, Magnum monos) or a BAT VK-60. I only used the Marsh with the Maggies because they like a lot of power.
I am not all that familiar with the Harbeth, but if you can run a tube amp you will get better sound. Perhaps, a Rogue 88 (or better, Magnum monos) or a BAT VK-60. I only used the Marsh with the Maggies because they like a lot of power.