Best Sound at Axpona?
I had respected more than loved the Legacy speakers I have heard in the past, but without a doubt one of the best two-channel sounds I heard at Axpona was provided by the giant Helix loudspeaker, shown here with Legacy founder/designer Bill Dudleston. Front-end at the Show was an Ayon CD player, and the speaker's crossover is implemented in the digital domain using FIR filters and 24-bit DACs and the six channels of amplification were provided by two three-channel McIntosh MC303 amplifiers. The speaker is actually a four-way; there is a rear-facing 15" subwoofer driven by twin ICE-Power class-D modules. The front-facing, open-baffleloaded upper woofers are actually backed up by second units, which, as with a twin-diaphragm microphone, gives a cardioid directional pattern, allowing a more optimal match with the room's acoustics than with a conventional omnidirectional bass unit. Completing the drive-unit complement, twin silk-dome tweeters are arranged side-by-side and are flanked by four midrange units. Considering what you get, the price of the Helix is a not-unreasonable $46,000/system, including the DSP/DAC crossover unit.
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