Colm, the DMA 200 was by no means an export model, but was manufactured in Sunnyvale in the late 80ties, also for the US marketof course. If I'm correct, it was the first truly wide bandwidth amp on the market. I still have two of them (those ARE export models running at 230 VAC) in my service and they have run faultlessly for at least the last 15 years. They are very well built and obviously highly reliable. They are typically Spectral in their transparency and delicacy, have good base, but are a bit grainy in the upper highs.(Harry Pearson once described the highs as "white", if I recall correctly.) I would never use them on good tweeters,there are also better 200 watters for the bottom end, but they provide fast and vivid midrange rendering and they do well on their dedicated Quad 63s in my setup. The drawback is, that they get quite hot and hence use fans, which though fairly silent, I find an annoyance. I keep them out of the listening area in the next room, with cabling running through the wall.
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