Atlantic Technology 642E SB User Manual

Model 642e SB

High Performance C.O.R.E. Technology

THX Select Certiﬁed Powered Subwoofer

Instruction Manual

Safety Precautions

Model 642e SB Powered Subwoofer

Safety Precautions

CAUTION: To reduce the risk of electric shock, do not remove the

cover (or back). No user serviceable parts inside. Refer to qualiﬁed per sonnel.

WARNING: To reduce the risk of ﬁre or electric shock, do not expose this appliance to rain or moisture. This device generates a fair amount of heat. Make sure nothing blocks the ventilation openings on the top and bottom of the unit.

The lightning ﬂash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufﬁcient magnitude to con

stitute a risk of electrical shock to persons.

The exclamation point within an equilateral triangle is

intended to alert the user to the presence of important operating maintenance (servicing) instructions in the literature accompanying the appliance.

Table of Contents

3 Model 642e SB

What's THX?

3 4 Subwoofer Rear Panel 5 Features 6 Connecting Your Subwoofer

6 Subwoofer Line Out to Low Level In

6 Using the Low Level Output 6 Power Connection

7 Low Level Connections with One Subout/LFE Output 8 Low Level Connections with Two Subout/LFE Outputs 9 Placement and Operation 9 System Setup

9 Subwoofer Tuning Without an SPL Meter or Test Tones 9 How Much is Enough? 10 Dual Subwoofer Placement 10 Using the Subwoofer LowPass Control 10 The Phase Invert Control

10 A Word About Bass, Center Channel Modes

and System Set Up

10 Care of Your Subwoofer 11 Subwoofer Troubleshooting Guide 11 Model 642e SB Speciﬁcations

For Future Reference

Record your speaker and amplifier serial numbers and date of purchase here:

Model Number

Serial Number

Date of Purchase

The serial number is found on the back panel.

Speciﬁcations are those in effect at the time of printing. Atlantic Technology reserves the right to change speciﬁcations or designs at any time without notice. THX and THX Ultra 2 are registered trademarks of Lucasﬁlm, Ltd. Dolby Digital, AC-3, Dolby Stereo and Dolby Pro Logic are trademarks of Dolby Laboratories Licensing Corporation.

Instruction Manual

Model 642e SB

High Performance C.O.R.E. Technology THX Select Certiﬁed Powered Subwoofer

Congratulations on your purchase of an Atlantic Technology 642e SB powered subwoofer. A well designed subwoofer, properly integrated into your system, will enhance your listening pleasure dramatically by providing the bass foundation upon which most music and special effects are built.

The 642e SB is capable of delivering very high output levels and wide dynamic range. When properly placed, it will provide smooth in-room bass response down to approximately 25Hz, with a peak SPL of over 105dB (2000 cubic foot space).

The proprietary high-efﬁciency ampliﬁer is conservatively rated at 300 watts RMS. This ampliﬁer, coupled with the massive 12” long-throw woofer in a sealed enclosure, generates accurate deep bass with a mini mum of distortion.

Your Atlantic Technology powered subwoofer will smoothly integrate with virtually all brands of loudspeakers on the market. From the rocksolid ampliﬁer to the easily accessible controls, this is one of the most versatile high performance subwoofers you can buy.

What’s THX?

THX is a series of demanding performance standards and speciﬁc technologies developed by Lucasﬁlm Ltd. (of Star Wars fame). Equipment that meets the rigorous THX standards will deliver performance in your home that matches as closely as possible what the director/artist/engineer heard and saw during the ﬁnal mixing of the source material. Please note that THX is not a separate surround sound decoding format. THX-certi ﬁed equipment enhances every viewing and listening experience, regard less of the surround format used.

THX Select standards are based upon a room size of 2000 cubic feet (L x W x H). This does not mean these components must be used in a rooms this size. The room sizes simply provide a frame of reference, as they indi cate that these systems must deliver a minimum level of performance in this speciﬁed room size. Your 642e SB is THX Select certiﬁed. For more information, visit the THX website at www.thx.com.

110-120V 220-240V

OFF

AC INPUT

50-60Hz 300W MAX

FOR 110-120VAC, USE 3A L 250V FUSE FOR 220-240VAC, USE 2A T 250V FUSE

STANDBYLOWPASS LOWPASS

PHASE OUTPUTINPUT

NORMAL NORMALOFF

ON INVERTBYPASS

60 80

14040

L/MONO

WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK

DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR

DOUBLE INSULATION - WHEN SERVICING USE ONLY IDENTICAL REPLACEMENT PARTS

2001310

CAN/CSA STD.E60065

CERTIFIED TO

CONFORMS TO UL STD.6500

AUTO

Subwoofer Rear Panel

Figure 1

Model 642e SB Powered Subwoofer

LowPass Switch

When in the NORMAL position, adjustment of the crossover can be made by the LowPass Control. If being fed a pre-ﬁltered or THX signal, place the switch at the BYPASS position. (pages 5 and 9)

Standby Switch

When in ON position, the ampliﬁer will always be on. When in the OFF position, the ampliﬁer will be off. When in the AUTO position, the ampliﬁer will be in Automatic Standby Mode. (pages 5 and 9)

Phase Switch

This switch allows precise acoustic matching with satellite speaker systems whose output may be phase reversed. (pages 5 and 10)

LowPass Control

An adjustable (40Hz to 140Hz) @ 18dB per octave low-pass crossover. (pages 5 and 9)

Product Serial Number

Write this number in the space provided on page 2 for future reference.

Low Level Input

Use the input to connect to the subwoofer or LFE line out from your processor/receiver. (pages 5 and 6)

Low Level Output

The outputs allow daisy chaining of multiple subwoofers, or as a return path back to the processor. (pages 5 and 6)

On/Off Switch

Use this switch to turn the ampliﬁer completely on or off.

AC Input

Use the included power cord to connect your ampliﬁer to a wall outlet. (pages 5 and 6)

110/220V Switch

Voltage switch for use in different countries. This switch will be set when you receive the unit. Change this setting only when you are sure your application requires it. For US, the switch should be set to the 110-120V position.

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