There used to be one inviolate rule in audio; racks – like fine wine – don’t travel. There was good reason for this; they are heavy and tended not to be in the same high-end league as their electronic counterparts in a system. Critical Mass Systems was one of the first companies to tear up that rule book, producing products that retain all the elements of high-end audio in terms of performance-raising abilities, weight and price. The company’s Olympus V-12 and Maxxum systems form the foundation for many of the highest of high-end systems around the world. Meanwhile the QXK system tested here brings many of those high-performance sonic elements down to a more manageable price and physical aspect.

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