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sm_AT-2-pair.jpgThe AT-2 Bookshelf Loudspeaker

Full-range sound from under 16 inches!

How do you follow up the most highly-reviewed product in your company's history? Introducing the AT-2. 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.


 sm_AT-2-tweeter.jpgsm_AT-2_ad.jpg Click image for full size view




sm_thm_AT-2-H-PAS-vent.jpg sm_thm_AT-2-top-perspective.jpgsm_thm_AT-2-left-angle-no-grille.jpg sm_thm_AT-2-front-grille.jpgBOSF_Logo_AT2.GIF

Related Products

Recommended Center and Surrounds:

4400SR Surround

4400C Center


AT-2 Brochure

AT-2 Manual

Feature List

  • 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
ico_pdf.gif Manuals
ico_pdf.gif Brochures
ico_pdf.gif Tech Tip
ico_pdf.gif Reviews
ico_wm.gif Videos

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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.



The AT-2 uses the highest-quality gold-plated 5-way binding posts to ensure the best connection possible. Dual sets of posts are provided to allow for bi-amplification, when the very highest quality installation is desired.

In addition, a 3-position tweeter level control makes it easy to adjust for different listening room acoustics or personal preferences.






The curved side panels are finished in a luxurious gloss black paint with subtle metallic flake highlight, applied in a multi-coat process and hand-rubbed to a lustrous shine. sm_AT-2-side-panel.jpg
The H-PAS vent at the bottom of the cabinet is precisely calculated to be a certain percentage of the driver's total radiation area. About 6 inches deep into the cabinet from the opening of the vent is a cross-hatched metal "debris guard" that prevents small objects from entering the speaker. thm_AT-2-left-angle-no-grille.jpg


Quality Materials, Innovative Design


at-1_02.jpg The crossover in the AT-2 uses the best components available (1% tolerance), hardwired on custom-tooled epoxy boards. Lesser speakers traditionally use 10% tolerance components hand-wired on masonite boards.
sm_AT-2-tweeter.jpg The AT-2's innovative tweeter is a complete "system" onto itself. An oversized 4mm treated textile surround (rarely found on any tweeter, at any price) gives this transducer exceptional excursion, which facilitates its low 2kHz crossover frequency. An integral aluminum back chamber reduces the tweeter's resonant frequency to 700Hz  The aluminum rear chamber also functions as a massive heat sink that allows for a greatly increased voltage drive through the HP x-over section, for great power handling and extended output levels.
sm_AT-1_wire_management.jpg A convenient wire management system ensures a neat installation, and allows for the use of virtually any cable imaginable. Note the leather-grained surface, which is present on the rear, top and front baffle section (behind the grille).