Atlantic Sets H-PAS Speaker Ship Date

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LAS VEGAS - Atlantic Technology is coming to International CES with the first production speaker incorporating H-PAS (Hybrid Pressure Acceleration System) bass technology, which delivers targeted bass performance with 50 percent smaller cabinets, smaller drivers and lower costs, the company said.

Shipments of the AT-1 speaker are expected by the end of the first quarter at an introductory price of $1,995 per pair. The speakers, finished in gloss-black metal-flake paint, will be displayed at CES in the Venetian Veronese 2501A.

The production version "retains the compact size and attractive appearance" of a prototype demonstrated at the CEDIA Expo but delivers "more acoustic weight and a more commanding and authoritative sound," said Atlantic president Peter Tribemen.

H-PAS, developed jointly by Atlantic and Clements/Solus Loudspeakers, breaks what Tribeman called "the famous iron law of loudspeaker design." Among other things, the law states that among three major goals of speaker design - deep bass extension, a compact enclosure and good efficiency - speaker designers must choose two at the expense of the third, he explained.

H-PAS combines elements of bass reflex, inverse horn, and transmission-line speaker technologies. H-PAS uses an unusually cabinet design to cascade the technologies one to another to pressurize and accelerate low frequencies, the company explained.

The two-way AT-1 features two 5.25-inch drivers in an enclosure of about 1.6 cubic feet to produce bass that extends to 29Hz (-3dB) at SPLs exceeding 107dB with bass harmonic distortion of less than 3 percent, the company said. Comparable performance in a conventionally designed loudspeaker system would require bass drivers of at least triple the size and an enclosure at least twice as large, the company contended.

The AT-1 also uses a 1-inch low-resonance tweeter with a crossover frequency (2,000Hz) that's lower than usual in a two-way system to deliver "exceptionally wide dispersion through the midrange without the upper-midrange ‘beaming' normally exhibited by woofers in a two-way speaker," the company added.


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