Yes you are correct, it is a two chassis unit with a switch mode power supply. I stack the units on top of each other as the stock connecting cord is only about 6 inches long. The amplifier is rated at 150 watts per channel and for the most part runs quite cool. As I only have the chance to listen on the weekend, I turn it on Friday night and off on Sunday pm. By Sunday, the top of the power supply is warm to the touch only. Hope this helps.
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