Troubleshooting

If you’re having trouble, check out these tips...

If there is no power, check to see if...

• The power cord is plugged into both the IEC socket on the rear panel of the unit and into the AC mains.

• The AC mains voltage is matched to the operating voltage requirements (see Changing Voltage in the Connecting Your System section on page 6). If the AC mains voltage is higher than the selected voltage, it is possible that the fuse needs to be replaced (seeChangingFuses in theConnectingYourSystemsection on page 6).

• The power light is illuminated on the front panel of the monitor or on the back panel of the subwoofer. Note that with the the new RoKit series (Generation 2) or the VXT series, the logo illuminates on the front panel to indicate that power is on. If the power indicator is not on, turn the power switch off and check the A/C mains fuse(s). NEVER USE A LARGER AMPERAGE FUSE THAN IS SPECIFIED! Turn the power switch back on. The power light should illuminate.

• Note: If a fuse change was needed (and the AV mains voltage is set correctly)

yet upon powering the unit back up the fuse(s) blow again, the product needs to be returned to the dealer you purchased it from, or to KRK, for servicing.

If you can’t hear any sound...

• Repeat the steps in the Troubleshooting section above before continuing to the next steps.

• Check to see if all other audio devices using the same AC outlet are still operating.

• Make sure that:

• The audio source cable is plugged into both the source output and the unit’s input.

• The System Gain pot is turned up fully clockwise (+6dB).

• The signal source (e.g. mixing console, work station, CD player, etc.) is turned up to a level that can properly send a signal to the monitors.

• If one of the full range monitors is working then exchange the audio input cable from the non-working monitor to the working unit. This will determine whether it's really the monitor, a faulty cable, or some other glitch in the audio chain.

• If the unit is still not responding, it should be returned to the dealer that you purchased it from, or to KRK, for servicing.

If the monitor suddenly stops working...

• Turn the unit’s send down or off.

• Repeat the steps in the Troubleshooting sections above before continuing to the next steps.

• Carefully check to see if the amplifier's back plate is hot! If the unit has been running at highest power output for an extended period of time, it could be that it has become over heated and the protection circuitry has shut the system down momentarily. The unit provides maximum circuitry protection against AC power surges, amplifier overdrive, and overheating of the amplifiers. Turn the unit off then wait 30 minutes to allow the back plate to cool down. Turn the power switch back on.

• Increase the volume to check for normal operation.

• If the unit is still not responding, it should be returned to the dealer that you purchased it from, or to KRK, for servicing.

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KRK 10S manual Troubleshooting, If there is no power, check to see if
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10S specifications

The KRK 10S is a powerful subwoofer designed specifically for professional studio and home audio applications, offering a compact solution for enhancing low-frequency performance in music production and mixing. Renowned for its exceptional sound quality, the KRK 10S is an ideal companion for KRK's renowned studio monitors, delivering deep, accurate bass that enriches both music and audio editing experiences.

One of the standout features of the KRK 10S is its impressive 10-inch woofer, which has been engineered to provide an expansive low-frequency response. This ensures that users can hear every nuance of their music, from the thundering lows of bass instruments to the subtle details in the mix. The subwoofer boasts a frequency response range of 29 Hz to 133 Hz, enabling it to reproduce the most profound bass frequencies with clarity and precision.

The KRK 10S also incorporates advanced technologies designed to optimize performance. One such feature is its built-in limiter, which helps prevent distortion and ensures that the subwoofer operates within safe limits even at high volume levels. Additionally, the subwoofer comes with a rear-panel volume control, phase switch, and a low-pass filter that allows users to tailor the bass response to their specific acoustic environment. This level of customization is crucial for achieving the best possible sound, as it enables audio professionals to match the subwoofer's output precisely with the main studio monitors.

Another significant characteristic of the KRK 10S is its robust construction. The cabinet is made from high-quality, durable materials that minimize unwanted vibrations and standing waves, enhancing the overall acoustic performance. The enclosure is designed to be both lightweight and sturdy, making it easy to transport while ensuring longevity in any studio environment.

The subwoofer features balanced XLR and TRS inputs, making it compatible with a wide range of audio interfaces and mixers. This versatility allows users to easily integrate the KRK 10S into their existing setups without any hassle.

In conclusion, the KRK 10S is a professional-grade subwoofer that excels in delivering deep, accurate bass for both studio and home listening applications. With its combination of exceptional sound quality, advanced technologies, and robust construction, the KRK 10S significantly enhances the audio experience for music producers, sound engineers, and audiophiles alike.
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