System 370 THX High Performance THX Home Theater Loudspeaker System Covers Models 371 LR, 373 C, and 374 SR Atlantic Technology ® I N N O V A T I V E H O M E T H E A T E R 343 Vanderbilt Avenue Norwood, MA 02062 (781) 762-6300 Instruction Manual ®
Atlantic Technology Models 371 LR, 373 C, and 374 SR ® SYSTEM 370 THX High Performance THX Home Theater Loudspeaker System Congratulations on your purchase of the Atlantic Technology System 370 THX loudspeaker system. With proper care, your new speaker system will provide many years of trouble-free, high quality sound reproduction. The System 370 THX was designed to provide accurate, uncompromised reproduction of high fidelity music and movie soundtracks.
Atlantic Technology Models 371 LR, 373 C, and 374 SR ® 372 PBM Subwoofer ■ ■ High output level reproduces full dynamic impact. Smooth in-room response down to 20Hz. A Word About Digital Surround Technologies and THX It is important to remember that THX technologies work in conjunction with whatever processing technology it is paired. THX, on its own, is not a decoder or processor.
Atlantic Technology Models 371 LR, 373 C, and 374 SR Figure 2: Typical wiring diagram for speakers in a home THX theater. ® To optional second subwoofer Finally, check the polarity of your front speakers by listening to some music. If the sound seems hollow, indistinct, and has weak bass, one of your speakers is out of phase. Recheck your connections for proper polarity and reverse the connections if necessary.
Atlantic Technology Models 371 LR, 373 C, and 374 SR ® Mounting The Model 371 LR and Model 374 SR speakers can be mounted in a variety of ways: On the wall. To surface mount your speakers on the wall, we have provided two steel keyhole brackets already installed on the back panel of the cabinet. Simply place the large openings of the bracket over the heads of pan-head screws (securely screwed into wall studs or wall anchors), and slide the cabinet down onto the shaft of the screw.
Atlantic Technology Models 371 LR, 373 C, and 374 SR ® The degree of front speaker toe-in can affect the imaging and response characteristics of the speakers. In most rooms, the speakers will work well facing straight ahead or slightly toed-in towards the listener. Speakers that are placed close to the side walls may require additional toe-in to avoid a poor image and/or a forward midrange and treble response due to reflections from the side walls.
Atlantic Technology Models 371 LR, 373 C, and 374 SR ® The Model 372 PBM Powered Subwoofer should be placed in the front of the room, close to a corner. Every room has its own unique sound, and flexibility in the exact placement of the subwoofer is always desirable. In general, the closer the woofer is placed to a corner, the more bass response you will hear. However, in many rooms, corner placement can produce too much bass and the subwoofer will work best well away from the corner.
System 370 THX Specifications Model 371 LR 373 C 374 SR Type Sealed-box, 3-way D’Appolito Sealed-box, 3-way, D’Appolito Sealed-box, TwinPolar™ (V-pole) spatially-enhanced Drivers (2) 6-1/2" coated composite molded graphite woofers; (2) 3-1/2" coated composite molded graphite midrange drivers; (1) 1" silk dome tweeter, neodymium magnet, ferrofluid cooled (2) 6-1/2" coated composite molded graphite woofers (2) 3-1/2" coated composite molded graphite midrange drivers; (1) 1" silk dome tweeter, neody