QSC Audio DSP-4 manual RS-232 Connection, RS-232 Port Connection

Models: DSP-4

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Outputs- The DSP-4’s post-processor audio is output to the rear-panel DataPort AND the XLR output connectors. The outputs are elec- tronically balanced with an impedance of 600 ohms. Output level is software-selectable from 4 or 6 Vrms. The XLR out’s can be used for daisy-chaining the processed audio to additional amplifiers, even when connected to a DataPort-equipped amplifier via the rear-panel DataPort. The maximum number of QSC amplifiers that can be connected to the DSP-4’s outputs (including the output DataPort) is five. This ensures THD stays below 0.1%. The effect on output level signal strength is about -3 dB when five QSC amplifiers are daisy chained. An additional +12 dB of output gain is available in software (OUT1 and OUT2 blocks).

If making your own cables, please refer to the Appendix for proper pinout of the XLR con- nectors. Pinouts are provided for balanced and unbalanced config- urations.

RS-232 Connection

RS-232 connection to the DSP-4 module is required for “setting up” a configuration. After being setup and the proper operation verified, the RS-232 connection is no longer needed. However, for “real time” adjustments, the RS-232 connection to the computer must be maintained.

RS-232 PORT Connection-

1- Plug the 9-pin serial cable into the connector labeled RS-232 . Cable length should be 25 feet or less. Orient the DB-9 plug correctly, insert the plug fully into the RS-232 port and finger-tighten the retaining screws.

2- Plug the other end of the serial cable into an available COM port on your PC. Tighten the retaining screws.

DSP-4 setup and programming takes place via the RS-232 port. Any time setup changes are required to the DSP-4, it must be connected to its host computer through the RS-232 port. If “real-time” control of the DSP-4 is required, the RS-232 port connection must be main- tained. If “real-time” control is not required, then the DSP-4 can be setup first and then disconnected from the PC.

The RS-232 connection does not have to be maintained for the DSP-4 to operate.

Setup & programming can also be done via Ethernet network communication when using QSC’s QSControl products. Refer to QSControl documentation for detailed information.

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QSC Audio DSP-4 manual RS-232 Connection, RS-232 Port Connection

DSP-4 specifications

The QSC Audio DSP-4 is a state-of-the-art digital signal processor designed to deliver exceptional audio performance across various applications. This versatile device caters to the needs of live sound, installations, and broadcasting, making it a popular choice among audio professionals. With a robust feature set and advanced technologies, the DSP-4 ensures seamless integration and an unparalleled audio experience.

One of the standout features of the QSC DSP-4 is its powerful processing capabilities. Equipped with a high-performance quad-core processor, it can handle complex audio tasks efficiently, allowing users to manipulate audio signals in real-time. This ensures that even the most demanding audio environments can be managed smoothly.

The DSP-4 boasts a user-friendly interface, making it intuitive for both seasoned audio engineers and newcomers alike. The device comes with a comprehensive software suite that enables users to create and modify audio configurations with ease. The drag-and-drop functionality and visual representation of signal flow simplify the process of designing intricate audio setups.

In terms of connectivity, the QSC DSP-4 offers multiple input and output options, including digital and analog connections. This flexibility allows the device to integrate seamlessly with various audio systems, whether they involve microphones, musical instruments, or other audio sources. Moreover, it supports multiple audio formats, ensuring compatibility with a wide range of equipment.

Among the notable technologies in the DSP-4 is its advanced equalization capabilities. The device features graphic and parametric equalizers that allow for precise control over frequency response, enabling users to tailor the audio output to their specific needs. Additionally, the DSP-4 includes a variety of essential audio processing tools such as compression, gating, and delay, further enhancing its functionality.

The QSC DSP-4 is designed with reliability in mind, featuring robust construction and advanced thermal management to ensure stable operation in demanding environments. Its compact form factor allows for easy installation, whether in racks, on shelves, or in custom setups.

Another noteworthy aspect of the DSP-4 is its scalability. Users can easily expand their audio setups by linking multiple units together, allowing for larger projects or more complex configurations without sacrificing performance. This scalability, combined with the device's rich feature set, makes the QSC DSP-4 a powerful tool for any audio professional.

In summary, the QSC Audio DSP-4 is a highly capable digital signal processor that combines advanced processing power, user-friendly design, and extensive connectivity options. Whether for live events or permanent installations, the DSP-4 stands out as an essential component in delivering superior audio quality.