Tuning

With the SMS1-SUB installed, the Control Panel on the side of the SMS1-SUB is still entirely accessible. The next section of this manual will go through a step by step process to properly setup and tune the SMS1 System.

Step 1: With the Power off, turn the Volume Knob, and Paging Mic Volume Knob down (COUNTER-CLOCKWISE). With a small Flathead screwdriver turn the Page Sensitivity and Subwoofer Trim Knobs to the 12:00 Center Position. Turn the Auto Warmth Trim Knob to off (COUNTER-CLOCKWISE).

Step 2: Turn the Subwoofer on with the Power Switch, and begin playing the source.

Step 3: If you have a remote wall plate connected to the system, be sure that the Remote Volume Knob is set to maximum before beginning this step

SLOWLY turn the Volume knob CLOCKWISE until you begin to hear the source. Adjust the Volume to a comfortable listening level. Press the Input Channel Polarity Switch a few times and leave it in the position that gives the most bass. Note that the remote wall plate is only an attenuator. To best use it, adjust the Volume on the Subwoofer Electronic Module to the maximum desired listening level with the Remote Volume at Maximum. Then, instruct the user to make all volume adjustments from the Remote Wallplate. This will prevent the user from turning the System Volume beyond the desired maximum level.

Step 4: With the overall level at a reasonable volume, walk around the room. Listen for the balance between the Subwoofer and the Satellites. If there is too much low frequency sound, turn the Subwoofer Trim Knob COUNTER-CLOCKWISE towards “Less Sub.” If more bass is needed, turn the Subwoofer Trim Knob CLOCKWISE towards “More Sub.” Adjust for a good even balance. NOTE: It is possible with the Subwoofer Trim Knob to set the Subwoofer too high, such that the driver distorts or clacks. This can be destructive to the Subwoofer speaker driver. Avoid setting the Subwoofer this high.

Step 5: With the overall volume at the higher expected listening level, turn the AutoWarmth Trim Knob CLOCKWISE until the AutoWarmth LED just begins to light. Then, turn the volume back down to a normal listening level.

The AutoWarmth Circuitry accounts for changes in Volume from the desired listening level. In a system without such a circuit, turning the volume down makes the system sound thin and lacking in bass. Turning it up makes the system sound too boomy. This has nothing to do with the equipment being used, but is a function of how humans hear. AutoWarmth, once set, uses patented-pending circuitry to adjust for more or less bass when the volume of the system is changed. When it is turned down, or the music is in a soft passage, the bass level is adjusted so that the system is still full and rich. When the music it is turned up, or if the music is in an exception- ally loud passage, the bass level is adjusted so that the system does not get too boomy.

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JBL SMS1 owner manual Tuning
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SMS1 specifications

The JBL SMS1 is a state-of-the-art sound system processor designed specifically for professional sound applications. It excels in offering unparalleled sound quality and advanced processing capabilities, making it a go-to choice for audio engineers and sound professionals alike. With its compact design, the SMS1 is highly versatile, suitable for both live sound scenarios and fixed installations.

One of the standout features of the JBL SMS1 is its ability to perform precise room tuning. This is essential for optimizing sound in various environments, whether it be a concert hall, auditorium, or nightclub. The SMS1 utilizes advanced digital signal processing (DSP) technology, allowing users to tailor the sound to fit the acoustics of any space. This functionality ensures that the audio experience remains consistent and high-quality, regardless of the listening environment.

The SMS1 is equipped with multiple inputs and outputs, allowing for flexible connections to various audio sources and speakers. This includes balanced XLR connectors for professional-grade signal transmission, providing low-noise and high-quality audio signals. Additionally, the unit supports a broad range of sample rates, enabling compatibility with a variety of audio formats and devices.

Integration with other equipment is seamless, thanks to the SMS1’s MIDI capability and networked control options. Users can easily control multiple SMS1 units and other compatible devices through a centralized interface, streamlining the overall sound management process. This is particularly beneficial in live settings where performance dynamics can change quickly.

Another noteworthy characteristic of the JBL SMS1 is its user-friendly interface. The device features an intuitive LED display, making navigation through settings and adjustments straightforward for operators, even under pressure during live events. The advanced processing algorithms ensure that the audio output is not only powerful but also crystal clear, enhancing the overall listening experience.

Finally, the durability of the JBL SMS1 is built to withstand the rigors of professional use. Its robust construction ensures reliable performance, whether in a touring setup or a permanent installation. With the combination of cutting-edge technology, user-centric design, and exceptional sound quality, the JBL SMS1 is an indispensable tool for audio professionals looking to elevate their sound systems to new heights.
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