Every once in a great while, a truly groundbreaking product comes along that accomplishes the game for home theater sound systems.
The new AT-1 H-PAS™ tower speaker is such a product. The AT-1’s patent-pending H-PAS bass system (Hybrid Pressure Acceleration System) combines elements of several speaker technologies—bass reflex, acoustic suspension, inverse horn, and transmission line—in a unique configuration to deliver powerful low frequency response that absolutely breaks what was previously thought to be the “Iron Law” of loudspeaker acoustics: the notion that you couldn’t have deep bass extension, good system sensitivity, and reasonable enclosure size all in one design. “Pick any two at the expense of the third,” went the old cliché. H-PAS changes all that.
H-PAS does not require the use of special drivers, any kind of on-board electronics or outboard equalization. It is a purely passive system, completely compatible with all stereo amplifiers and AV receivers.
The Atlantic Technology AT-1 utilizes two 5¼-inch drivers in an enclosure of approximately 1.6 cubic feet to produce bass that extends to 29 Hz (-3dB) at Sound Pressure Levels that exceed 106dB. Bass harmonic distortion is under 3 percent. Comparable performance in a conventionally designed loudspeaker system would require bass drivers of at least triple the size in an enclosure at least twice as large. The AT-1 also uses an exceptionally advanced 11⁄8-inch Low-Resonance Tweeter (LRT™) that affords a lower crossover frequency (2000 Hz) than is normal in a two-way system.
The result is exceptionally wide dispersion through the midrange without the upper-midrange “beaming” normally exhibited by woofers in a two-way speaker. The tweeter’s oversized 4 mm textile surround—rarely, if ever, found in a tweeter—allows for long excursion, and very high power handling. As innovative as the H-PAS design is in the bass region, the AT-1’s tweeter is equally impressive in the higher ranges. This is a total loudspeaker system of amazing capability and accuracy.
Overall Rating for Atlantic Technology AT-1 Floor Standing Loudspeaker