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Cambridge Audio has built stacks of great-sounding budget-conscious kit, and its Azur range has set sky-high standards in the sub-£300 stereo separates arena. The 840A represents the leading edge of an up-market Azur range that takes the firm into a whole new fight. Over £700 is a substantial price to consider spending on equipment from a company with negligible experience in this sector of the market; there are more than a few extremely effective amplifiers to be had for this kind of cash. So, does Cambridge Audio have what it takes to move into a scrap with the big-hitting specialists?
If what it takes is a bold, blank-page approach to construction and engineering, then the answer is a resounding ‘yes'. For example, some of the fundamentals of the 840A's amplifier topology are patent pending. ‘Class XD' is claimed to eliminate crossover distortion at low signal levels, and Cambridge hasn't left it there: the 840A can form the hub of a simple multi-room system and features balanced inputs and a monster power supply.
Each input can be customized for gain and source name via the LCD display. A chunky, rigid build and nicely judged controls (both integrated and remote) don't harm its case, either. Office opinion may be divided as to the 840A's actual appearance, but it's no ugly sister alongside its obvious rivals.
Bright out of the box
Straight from the box, the Cambridge sounds bright and aggressive. After a day's warming, the sound calms to merely brash, and, at the end of a second day, the 840A has gained equilibrium. A run through Goldfrapp's Supernature reveals this to equate to a detailed, open, dynamic, and expansive sound. Voices are quite superbly poised and natural, low frequencies punch solidly, and the soundstage is vivid, substantial, and well-integrated.
