Operation

Surround Modes

When using the Modulus II system in a Dolby Pro Logic* home theater system, make sure the receiver’s center channel mode is set to “Normal.” When using the Modulus II system in a Dolby Digital or DTS home theater system, make sure the receiver’s speaker modes are set to “Small.”

Some Dolby Digital-equipped receivers/processors offer different setup options for each source or surround mode: e.g., CD-stereo, videotape, Dolby, Pro Logic. In each case, follow your equipment’s instructions to ensure that the subwoofer output is turned on and that the speakers are set to “Small” in each mode.

Power On

Plug your Modulus II subwoofer’s AC cord into a wall outlet. Do not use the outlets on the back of the receiver.

Initially set the subwoofer’s Level Control ª to the “O” position.

Turn on your sub with the Power Button • on the rear panel.

Auto On/Standby

With the Power Button • in the ON position, the Level Control

ªon the front panel will remain backlit in red or green to indicate the On/Standby mode of the subwoofer.

RED = STANDBY (No signal detected, Amp Off)

GREEN = ON (Signal detected, Amp On)

The subwoofer will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system. The subwoofer will then power ON instantly when a signal is detected. During periods of normal use the Power Button • can be left on. You may turn off the Power Button • during extended periods of nonoperation: e.g., when you are away on vacation.

Adjust Level

Turn on your entire audio system and start a CD or movie sound- track at a moderate level. Turn your subwoofer’s Level Control ª up to the “5” position (half way). If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected to a “live” receptacle? Has the Power Button • been pressed to the “On” position? (Note:The Level Control ª on the front panel will turn green when the power is on.) Once you have confirmed that the subwoofer is active, proceed by playing a sound source. Use a selection that has ample bass information.

Set the overall volume control of the preamplifier or stereo to a comfortable level. Adjust the subwoofer’s Level Control ª until you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to the belief that a subwoofer is there to produce lots of bass. This is not entirely true. A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An experienced listener will set the volume of the subwoofer so its impact on bass response is always there but is never obtrusive.

Phase Control

The Phase Switch ∞ determines whether the subwoofer speaker’s piston-like action moves in and out with the main speakers, 0˚, or opposite the main speakers, 180˚. Proper phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position.

Final Positioning

After correctly connecting the Modulus II system and verifying that both the subwoofer and all satellite speakers are playing, it is time to optimize the system for your particular listening room. Earlier, you placed the subwoofer in its general location. Finding the exact location for optimum performance sometimes only involves moving the speakers up to a few inches in any direction. We urge you, therefore, to experiment with placement, if possible, until your speakers deliver their full potential.

8 MODULUS II HOME THEATER SYSTEM