MK Sound VX-1250 operation manual USE of the Phase Control, Plugging in the Subwoofer

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POWERED SUBWOOFER

If your amplifier has two sets of speaker outputs (e.g., A and B), you can connect the satellites to one set and the subwoofer to the other. But if you get weak or no output when you connect your speaker this way, connect both sets of speaker wires to the same output terminals.

FIGURE 4 - SATELLITE SPEAKER WIRING (OPTIONAL)

AMPLIFIER OR RECEIVER

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LEFT

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RIGHT

REF

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SATELLITE SPEAKERS

PLUGGING IN THE SUBWOOFER

Once all the speaker wires or preamp interconnect cables are in place, you are ready to plug in the subwoofer. Set the "BASS LEVEL" control to "MIN". Attach the power cord to the receptacle on the subwoofer’s back panel. Then plug the cord into the AC outlet.

Slide the power switch to either the “AUTO” or “ON” position. If your hear a “thump” from the subwoofer, this is the normal sound of its power supply charging.

“AUTO” SWITCH POSITION

In the “AUTO” switch position, the subwoofer is in an idle condition when your system is turned off and no signal is being fed to the subwoofer. When the subwoofer receives a signal from your receiver or processor, it automatically switches on.

“ON” SWITCH POSITION

In the “ON” switch position, the subwoofer is fully active, whether or not your other components are turned on.

Do not plug the subwoofer into a switched outlet on another component.

Now, play some music through your system to make sure that the satellite speakers are working properly. If they are, carefully advance the "BASS LEVEL" control. The subwoofer should begin to play. Set the "BASS LEVEL" control where the subwoofer sounds in balance with the satellite speakers. If the system is not working properly, unplug the subwoofer and check all of your connections. Call your dealer or the factory if you cannot solve any problem.

6.USE OF THE “PHASE” CONTROL

Your subwoofer has a phase control that allows for continuous adjustment between 0˚and 180˚ degrees. This con- trol let you fine tune the transition between the subwoofer and your other speakers.

To optimize the sound of your new subwoofer, you need to perform a Phase Test. This test insures optimum sound in the critical bass frequencies where your subwoofer and Satellite speakers overlap.

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Contents Powered subwoofer Table of Contents Wiring DiagramsSafety Instructions Voltage Selector and Power Cord Where to Locate Your SubwooferDetachable Power Cord IntroductionWiring with the RCA Jack Inputs Subwoofer HOOK-UPConnecting to a COMPONENT’S Subwoofer Output Using Speaker Wire Connections Satellite Speaker Wiring OptionsUSE of the Phase Control Plugging in the SubwooferUSE of the LOW Pass Filter Control USE of the Bypass SettingUsing Multiple Subwoofers Troubleshooting Home Theatre UsageIf YOU Need Service If YOU Need to Replace the External Fuse13. M&K 5.1 Multichannel & PRO-LOGIC System Setup Guide Powered Subwoofer Specifications