The Scattered Subwoofer System (Two ECS-10’s)
Why Two Subwoofers?
In most circumstances two subwoofers will perform better than one. While you might assume this is for added SPL, the greatest benefit will actually be smoother bass response.
Room shape, the cubic volume of the room (width x depth x height), furniture, floor coverings and even wall and ceiling material all play a roll in bass per- formance. These factors create peaks and dips in the level of low frequencies at different points in the room. That said, two properly positioned subwoofers will distribute the bass throughout the room with greater accuracy than a single sub. For this reason, many professional acousticians and installers recommend more than one subwoofer. The final result is that you will create a much larger “sweet spot” where the bass is powerful, but more importantly, smooth and consistent. If near perfect bass response is your goal, consider using two
Owner’s Manual
Troubleshooting
Care and Maintenance
Cleaning
When the
NEVER use benzene, thinner, alcohol or any other volatile cleaning agent. Do not use abrasive cleaners, as they may damage the finish of the metal parts. Avoid spraying insecticide, waxes, polishing agents, or any aerosol product near the unit.
When You Are Away
If you will not be using your home theater system for an extended period of time, it is always a good idea to turn the unit off using the Master Power Switch on the rear panel of the subwoofer. This will prevent the automatic turn on circuits from accidentally powering the system on during your absence.
What’s Needed to Connect Two Subwoofers?
Most of today’s digital receivers and preamp/processors provide a single subwoofer output. Connecting two subwoofers to these systems is as simple as adding a
To use the
Placement and Level Control
Placement and level control of two subwoofers is somewhat more complicated than using a single subwoofer. However, the end result of two properly placed and calibrated subwoofers is well worth the added effort.
The procedure for placement of the second subwoofer is identical to that of de- termining the placement of the first subwoofer (see the “Subwoofer Placement” section of this manual). However, the second sub should be placed in the seating area outside of the “sweet spot” where good bass response is also required. Walk around the room until you find the area where the bass sounds the best, just as described in the process for locating a single sub. This spot will almost always be different than the one that was best for the primary sub.
NOTE: When calibrating your second subwoofer, be sure to turn off the first sub. This will help you to determine ideal placement without being mislead by the response of the first sub.
When calibrating the final levels of each subwoofer, you may want to reduce their output to compensate for the added 3 or 4 dB of gain created by using two subwoofers together.
If you sense a loss of bass output after properly locating and calibrating both units in a
Troubleshooting
Your
Troubleshooting Guide
The table below provides a brief list of minor problems that you may be able to correct yourself. If these solutions do not rectify a problem, or if the problem persists, contact us for assistance.
Humming or | Power down your system and remove the |
Buzzing Noise | Interconnects between your components. Power |
| your system back on. If the hum goes away when |
| the interconnects are disconnected, the hum is |
| coming from the rest of your equipment. Plug In the |
| Interconnects one at a time for each component |
| until you come across the specific component |
| generating the hum. |
|
|
No output from | Check that the power cord is plugged in securely |
the subwoofer | at both ends and make sure that the power outlet |
(Blue LED does | the subwoofer is plugged into is functioning properly. |
not light up) |
|
|
|
The subwoofer is | Recheck the connections between the receiver/ |
not receiving a | processor and the subwoofer. On the back of the |
signal | subwoofer, make sure the power switch is set to |
| “auto” or “on”. |
|
|
No output from | Connect the signal cable to another subwoofer |
the subwoofer | or amplifier. If you get output, then the amplifier |
| is faulty. Email or call technical support for |
| authorization to send the amplifier back for service. |
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