KRK 10S manual Setting Subwoofer Levels, Using the Bypass Feature

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Setting Subwoofer Levels

Once the subwoofer is in position, its level needs to be matched with the near-field monitors. For stereo systems, the process is straightforward. Obtain a SPL (Sound Pressure Level) meter. If you will be using the internal high-pass filtered outputs from the subwoofer to the near-field speakers, set the low-pass filter on the KRK subwoofer back plate to 80Hz. Now, route 1-octave wide, band-pass pink noise to the monitor system, which will be sent to the main speakers through the subwoofer or bass-management filters. A good choice is 500 to 1,000Hz band-passed pink noise, which is within the fundamental frequency range of many vocalists, and minimizes high-frequency problems but doesn't excite the subwoofer. Set this to a comfortable monitoring level (typically 85dB SPL using the C response curve on the SPL meter).

Next, route 1-octave wide, band-passed, bass pink noise to the subwoofer via the same filter path. A good noise choice is 35 to 70Hz, which is below the 80Hz frequency of the subwoofer high-pass filter, but sufficiently high enough that most subwoofers will have adequate response in that band. Set the gain of the subwoofer level control until it matches the same 85dB SPL level.

Turn up the low-pass filter control on the subwoofer to 130Hz. This allows the bass energy between the near-field monitors and subwoofer to overlap. While listening to it from the mixing position, route pink noise with a band-pass of 60 to 120Hz to the speaker system. Have someone flip the phase switch between 0 and 180 degrees, and then back, and note which position sounds loudest. The loudest position is correct and in phase. Now return the low-pass filter to the 80Hz position (or another frequency if you are using external high-pass filters for the near-field monitors). Your subwoofer should now be properly aligned for phase, level and spectral response.

Using the Bypass Feature

Your KRK subwoofer is equipped with a bypass feature which allows you to defeat the sub and provide full range audio to your recording monitors in instances where your Line Outs are being utilized. This feature is of great benefit in that the high-pass filter is bypassed allowing full bandwidth to run to the monitors while muting the sub. This allows you to evaluate the impact of the subwoofer on your mix. Plug in a standard quarter-inch, mono, latching footswitch to the female quarter-inch connector on the back panel. Any standard latching quarter-inch mono footswitch (such as the Boss FS-5L) should be compatible.

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Contents User Guide Important Safety Instructions Contents Important Note Unpacking and Visual Inspection IntroductionUnpacking KRK Systems’ Design Philosophies KRK’s Ergo Room Correction System W-P as s Fr equ ency Adjustment VolumePhase Switch Using the Ground LiftConnecting Your System Subwoofer Hook Up with Active Monitors Hooking Up Your Subwoofer Stereo SystemsSubwoofer Hook Up with Passive Monitors Proper Physical Placement of Subwoofer Subwoofer Placement and Set UpUsing the Bypass Feature Setting Subwoofer LevelsHooking Up Your Subwoofer 5.1 Surround Beyond Stereo to 5.1 Surround Bass Management Theory Removing the Subwoofer Grill If there is no power, check to see if TroubleshootingMonitor or subwoofer hisses, hums or makes other loud noises Shipping Instructions KRK10s SpecificationsLITK00028 REV.A

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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