The sound quality changes...

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

• Disconnect the signal cable at the unit’s input. With power on, place your ear close to each driver (tweeter/woofer) and listen for noise (i.e. a slight hiss or hum). If there's absolutely no sound whatsoever, it could be that one or more of the drivers (woofer, tweeter or both) is at fault. It's also possible that the problem lies somewhere in the electronics.

• Play some non-distorted source material at a low volume. Carefully cover the tweeter (to block the sound) without touching the diaphragm. Is the woofer producing a clean sound? If there is not a clear tonal quality, or any sound at all, then the woofer probably needs to be replaced.

• Cover the woofer so you can hear mostly the tweeter. Is the tweeter producing a clear sound? If there is not a clear tonal quality, or any sound at all, then the tweeter probably needs to be replaced.

• Once you have a better idea of what may be at fault then call us and speak with someone in the service department. They will help you determine the best solution to correct your unit. The service department can be reached at 954-316-1580.

The monitor (or subwoofer) hisses, hums or makes other loud noises...

Here are some suggestions that will help you eliminate these undesirables from your system:

•Make sure that the power cord is plugged snugly into the IEC socket on the rear of the unit.

•Check the connections between the signal source and the unit. The sub and monitor’s XLR and TRS connectors are a completely balanced system. If you're connecting an unbalanced output to the monitor, be sure that you're using Pin 2 for signal and have Pin 1 and Pin 3 tied together at the source end.

•Refer to the Connecting Your System section on page 6 of this manual to ensure that the AC mains is matched to the operating voltage requirements.

•All audio equipment should use the same ground point. Check all other devices using the same AC output in the building such as dimmers, neon signs, TV screens, and computer monitors. These devices should not be using the same circuit.

Please read the warranty card that was included in the shipping carton of your subwoofer prior to sending it back to KRK Systems, LLC. All products in need of repair can be returned to the dealer where they were purchased or to KRK Systems, LLC.

Before shipping your unit back to KRK for service you must acquire a Return Material Authorizaion (RMA) from KRK. Your unit will not be received by the company, nor will any work be done on your unit without this number. Please call KRK at 954-316-1580 to request your RMA.

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KRK 10S manual Monitor or subwoofer hisses, hums or makes other loud noises
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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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