The compact AT-2 speaker delivers a level of deep bass not previously thought possible from a "bookshelf"-sized speaker. The AT-2's patented H-PAS bass system (Hybrid Pressure Acceleration System) is the reason. It combines elements of several speaker technologies-acoustic suspension, bass reflex, inverse horn, and transmission line-in a unique configuration to deliver powerful low-frequency response that breaks 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. H-PAS changes all that.

Features:

Revolutionary patented H-PAS technology delivers extended, dynamic bass
Atlantic’s exclusive Low Resonance Tweeter (LRT) for wide dispersion
Compact, bookshelf-sized cabinet for easy placement
Dual audiophile-grade 5-way binding posts for hookup flexibility
Luxurious, hand-rubbed gloss black finish with metallic sparkle

Specifications

Model AT-2
Type H-PAS, 2-way
Woofer 5.25" (135mm) GLH
Tweeter (1) 1 1/8" (28mm) silk dome
Frequency Response 41Hz – 20kHz ±2dB
Nominal Impedance 6 ohms
Crossover Frequency 2.2kHz
Crossover Type Parallel, 2nd-order LP, 3rd-order HP
Sensitivity 88dB
Recommended Amplifier Power 20 – 150 Watts RMS
Dimensions w/grille (W x H x D) 8 7/8 x x 15 3/4 x 12 5/8" 227 x 400 x 321mm
Weight (ea) 21lbs (9.6kg)
Atlantic Technology reserves the right to change specifications or appearance at any time without notice.

More Info on the Atlantic AT-2 and H-PAS Technology