MK Sound V-1250THX If YOU Need to Replace the External Fuse, Replacement Fuse Values

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V-1250THX subwoofer

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Because the subwoofer easily reproduces 60 Hz signals (the frequency of hum), it is often blamed for causing hum that originates elsewhere in the system. Always avoid running all speaker wires and RCA interconnect cables near to AC cords and component power supplies. Placing wires and cables close to AC lines often results in hum. If necessary, reroute your cables.

To identify the source of hum, remove all input cables to the subwoofer, but leave it plugged into the AC outlet. Set the "BASS LEVEL" switch to the "VARIABLE" position. Carefully turn the "BASS LEVEL" control up towards the "MAX" position. If you hear hum from the subwoofer, it is the source of the hum. If you hear no hum or much less hum, the problem is in another component or a ground loop.

For ground loop problems, when the subwoofer is plugged into a separate AC outlet, try plugging it into the same outlet as your amplifier or receiver. If that doesn't work, reverse the polarity of its AC plug. If you cannot solve the problem, call M&K or your dealer.

5.If you hear an unusual sound from the subwoofer when no signal or music is playing:

Try removing the input cables as described in Step 4 above. If the noise disappears, it is coming from another component. If it does not go away, contact your M&K dealer or the factory.

6.If the subwoofer will not play loud enough, AND it is connected to the SUBWOOFER OUTPUT jack on a non-THX surround sound processor:

Make sure that the "BASS LEVEL" toggle switch is set to "VARIABLE." Set the "BASS LEVEL" control to the "MAX" position. If you get bass output, but it is not enough, then the processor's output level is too low.

A few processors/receivers/amps have very low output levels from their SUBWOOFER OUTPUT jacks. If you do not have enough gain when using the SUBWOOFER OUTPUT jacks on a non-THX processor, use the processor's PREAMP OUTPUT jacks. See Figures 5 and 6 (pages 10 and 11).

IF YOU NEED TO REPLACE THE EXTERNAL FUSE:

First, unplug the subwoofer from the wall AC socket. Remove the fuse cap. Look carefully at the fuse's wire filament inside the glass. If it is broken, replace the fuse ONLY with one identical in size and value. Using a larger fuse will void your warranty AND MAY CREATE A FIRE HAZARD. Plug the subwoofer back in. If it does not work, unplug it immediately and contact M&K or your dealer for service.

 

REPLACEMENT FUSE VALUES

 

 

110 VOLT

220 VOLT

220 VOLT

 

(3 AG 1/4" x 1 1/4" slow blow)

(5 X 20 mm IEC-127/III)

V-1250THX

2 amp

1 amp

T 800 mA (time-lag)

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Contents THX Select powered subwoofer Wiring Diagrams Table of Contents1250THX subwooferpage Safety InstructionsWhere to Place Your Subwoofer IntroductionOther SET is for USE with NON-THX Processors Operation with THX Components Connecting the Subwoofer to a THX ControllerWiring ONE Subwoofer with a THX Controller Calibrating the Subwoofer THX Testing the Subwoofer THX ModeOperation of the LOW Pass Filter Switch THX Operation of the Bass Level Switch THXOperation with a NON-THX Processor Setting Subwoofer Level THXUsing TWO Subwoofers THX Operation of the LOW Pass Filter SwitchWiring with a NON-THX Processor or Preamp Operation of the Bass Level SwitchUse a Y-connector To connect to Two subwoofers Wiring with the M&K HP-80 or VF-80 HIGH-PASS Filters NON-THX Testing the Subwoofer NON-THX Setting the Subwoofer Level NON-THXUsing TWO Subwoofers NON-THX SATELLITE/SUBWOOFER Phasing Test Phasing Test Method ONEPhasing Test Method TWO If your subwoofer has no output TroubleshootingIf YOU Need to Replace the External Fuse Replacement Fuse ValuesIf YOU Need Service SpecificationsCabinet Maintenance

V-1250THX specifications

The MK Sound V-1250THX is a high-performance subwoofer that embodies the pinnacle of audio technology, specifically designed for home theaters and professional sound environments. Known for its robust power and precision, the V-1250THX is an ideal choice for those who seek to elevate their sound experience to an immersive level.

At the heart of the V-1250THX lies its powerful 12-inch driver, meticulously engineered to deliver deep, impactful bass that resonates throughout the room. This driver is coupled with a high-output amplifier, delivering a remarkable 500 watts of continuous power and peaking at 1000 watts. This impressive power aligns with THX certification standards, ensuring an audio quality that meets the needs of discerning audiophiles and movie enthusiasts alike.

One of the notable features of the MK Sound V-1250THX is its advanced bass-reflex design. This design enables the subwoofer to continuously produce low frequencies that maintain clarity and precision without distortion. The ported cabinet design further enhances this characteristic, allowing for better airflow and reducing the risk of unwanted noise.

The subwoofer is also equipped with a versatile input configuration, supporting both single-ended and balanced connections, making it compatible with a wide range of AV receivers and processors. Furthermore, the V-1250THX comes with an adjustable phase control and variable low-pass filter, giving users the ability to customize the sound output to fit their specific environments and preferences.

In terms of build quality, the V-1250THX features a sturdy enclosure that minimizes resonance and vibration, ensuring that all energy is directed towards sound production. The aesthetically pleasing finish complements various home decor styles, making it an attractive addition to any audiovisual setup.

Additionally, the subwoofer's compact size allows for flexible placement without sacrificing performance. The MK Sound V-1250THX is not just a subwoofer; it is a cornerstone of a superior audio experience built on innovation and quality craftsmanship, perfect for anyone looking to enhance their sound experience with powerful and accurate low-end reproduction.
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