Page 2 - Model 642e SB Powered Subwoofer; For Future Reference; Table of Contents; Safety Precautions
Model 642e SB Powered Subwoofer 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 gene...
Page 3 - Instruction Manual
3 Instruction Manual Model 642e SB 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 listen...
Page 4 - Use this switch to turn the amplifier completely on or off.; Subwoofer Rear Panel
4 Model 642e SB Powered Subwoofer 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...
Page 5 - If you are using a surround Processor/Receiver that includes; Features
5 Instruction Manual Features Your Atlantic Technology powered subwoofer has been engineered using the latest technology and finest components available. It features: A long-throw 1” composite cone driver with a vented 9-pound motor structure and ” high temperature, 4-layer voice coil. This powerf...
Page 6 - To prevent risk of electrical shock or damage to your; Subwoofer Line Out to Low Level In; Connecting Your Subwoofer
6 Model 642e SB Powered Subwoofer Connecting Your Subwoofer Use the low-level (RCA jack) subwoofer line out of your surround sound receiver/processor. Simply connect your subwoofer with a high quality shielded cable as shown in the diagram on page 7. Please consult your processor/receiver manual for...
Page 7 - Low Level Connections with One Subout/LFE Output
7 Instruction Manual Low Level Connections Low Level Connections with One Subout/LFE Output Figure 3 OUTPUT INPUT R L/MONO Sub Out/LFE
Page 8 - Low Level Connections with Two Subout/LFE Outputs
8 Model 642e SB Powered Subwoofer Low Level Connections Low Level Connections with Two Subout/LFE Outputs Figure 4 OUTPUT INPUT R L/MONO Sub Out/LFE Sub Out/LFE
Page 9 - Placement and Operation; A particularly useful experiment is to place the; System Set Up; Subwoofer Tuning Without an SPL Meter
9 Instruction Manual Placement and Operation achieving the correct subwoofer volume this way or should your Proces-sor/Receiver not have a subwoofer level control, you can use the 642e SB’s front mounted level control to make this adjustment. If you decide not to use an SPL meter try to set all the ...
Page 10 - Dual Subwoofer Placement; The Phase Invert Control; Care of Your Subwoofer; Using the Subwoofer LowPass Control
10 Model 642e SB Powered Subwoofer Care of Your Subwoofer Dual Subwoofer Placement When two subwoofers are used, you may wish to place them asymmetri-cally; that is, in slightly different positions in the room (Figure 7). This will reduce common mode room resonances that occur with symmetri-cally po...
Page 11 - Subwoofer Troubleshooting Guide; Problem
11 Instruction Manual Subwoofer Troubleshooting Guide Subwoofer Troubleshooting Guide Once your subwoofer is set up, you should have many years of maintenance free enjoyment from your system. However, if you should encounter a problem, refer to the following guide to help you find the solution. If a...