Control Panel and Connector Panel

Figure 4a: Control Panel

1 - Power Switch – Use this switch to turn the System on and off.

2 - Power LED – This LED illuminates when the Power is ON.

3 - Security Panel Attachment Points – The INCLUDED Security Panel is attached here using the INCLUDED screws and standoffs. This panel covers the trim controls to prevent unauthorized tampering .

4 - Input CH Polarity Switch – This switch changes the polarity of the input to the Subwoofer. Its function is clearly detailed in the TUNING section of the Manual. Adjust this switch for most Bass.

5 - Crossover Switch – This switch changes the crossover point for the Subwoofer and Satellites. In the outward position, labeled “NORMAL,” the crossover is set at 160 Hz (for use with SMS1-SAT’s). This is the proper position for use with the system’s SMS1-SAT satellite speakers. The pushed-in position sets the crossover at 80 Hz for applications in which you need the Subwoofer to simply augment the bass of a full-range system.

6 - Subwoofer Trim Knob – This knob adjusts the amount of Subwoofer level in the acoustic mix. Turn the knob CLOCKWISE for more bass, COUNTER-CLOCKWISE for less Bass. LevelGuard may not protect the sytem from damage when the subwoofer trim control is turned all the way up. Be careful not to set this too high.

7 - AutoWarmth LED – This LED illuminates when the AutoWarmth circuitry is actively responding to the music. AutoWarmth is covered in detail in the TUNING Section of the Manual.

8 - AutoWarmth Trim Knob – This knob adjusts the amount of AutoWarmth in the Signal Path. AutoWarmth is covered in detail in the TUNING Section of the Manual.

9 - Page Sensitivity Trim Knob – This knob adjusts the sensitivity of the Page Ducking circuitry to the incoming Page Signal. Turn CLOCKWISE for greater Sensitivity, turn COUNTER- CLOCKWISE for less sensitivity. Adjust this control so the mic makes the music go down in volume during a page, but so that the page ducking does not falsely trigger when a page isn’t occuring.

10 - Mic Volume Knob – This knob adjusts the output volume of the signal from the Paging Microphone.

11 - Volume Knob – This knob adjusts the music volume but does NOT affect the mic paging volume.

12 - LevelGuard LED – This LED illuminates when the LevelGuard Circuitry is actively responding to the signal. LevelGuard lowers high volume signals. It’s acceptable for this LED to flash on for as much as 50% of the time, as long as the sound from the speakers is not audibly distorted.

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.