Hawaii-based Emerald Physicsa company I hadn't heard of until RMAF 2012demonstrated their own US-built loudspeakers and electronics with a Peachtree Audio novaPre preampD/A converter playing music files from a laptop computer. Emerald's CS2P open-baffle loudspeaker ($2990/pair) works as a dipole below 1000 Hz, with a 15" woofer and a horn-loaded 1" tweeter. The retail price of the system I heard, including the Peachtree unit; the Emerald Physics CS2P loudspeakers; Emerald's DSP2.4 active outboard crossover/EQ unit ($850); and the company's EPI100.2 100Wpc digital amplifier ($1600) was under $7000, not including computer and playback software. While far from perfectthe bass wasn't especially taut, and there was little in the way of the sorts of texture and tone I cravethe performance was clean, spacious, and satisfying.
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