Use Application Example | QSC Audio DSP-30 manual

Use: Application Example

TRI-AMPED PA CABINETS WITH SUBWOOFER (refer to illustration at right)

This is highly generalized, but shows the main idea in cre- ating larger systems. In this example, the audio source ma- terial is connected to the inputs of all four DSP’s. Take care to keep right and left channel signals connected to the cor- rect channels of downstream equipment. For example, keep all left channel signals routed through the channel 1 sec- tions of downstream gear and all right channel signals routed through channel 2 sections of downstream gear. This preserves stereo imaging.

Each DSP would be setup independently with the appropri- ate crossover response and equalization for the specific driver being used. Refer to the speaker’s (or driver’s) docu- mentation for recommended frequency range, drive level, and any other applicable information. In the example at right, DSP #1 (assigned to high frequency drivers) might be set up for a high pass filter with a -3dB point of 6 kHz and high- speed limiters to protect them from transients. DSP #2 (as- signed to midrange drivers) might be set for a band pass filter, with -3 dB points at 1 kHz and 7 kHz using mild signal

limiting. DSP #3 (assigned to low frequency drivers) might provide a 45 Hz to 1100 Hz bandpass with EQ to remove modal resonances of the listening environment. DSP #4 (subwoofer drive) could be assigned a low pass filter with a -3dB point of 50 Hz and equalization as required. All the filters mentioned above would have assignable response type (where applicable) and assignable slope characteris- tics enabling precise tuning of the system.

Power requirements for high frequency drivers are gener- ally much lower than for low frequency drivers; this requires either reduced gain in the signal processing stage or the lower power amplifier for the high frequency drivers. The opposite is true for the subwoofers; they generally require the highest power to drive them, so assign your most pow- erful amplifiers to the lowest frequency drivers. Assign your amplifiers to the drivers according to the required power levels .

DSP-30 specifications

The QSC Audio DSP-30 is a powerful digital signal processing platform designed for a wide range of audio applications, particularly in professional audio environments such as live sound, installation, and broadcast. Renowned for its exceptional audio performance and versatility, the DSP-30 provides users with advanced control over audio signals, ensuring that sound quality meets the highest standards.

One of the standout features of the DSP-30 is its robust processing capabilities. With up to 30 channels of audio processing, it allows users to manipulate both live and recorded audio seamlessly. The unit supports various input and output configurations, giving sound engineers the flexibility to adapt to multiple setups and environments.

The DSP-30 incorporates an array of advanced algorithms and processing tools, including equalization, compression, limiting, and delay functionality. These tools enable users to fine-tune audio signals for optimal clarity and impact, ensuring that performances remain consistent and engaging regardless of the venue size or acoustics.

Moreover, the DSP-30 utilizes QSC's exclusive Intrinsic Correction technology, which optimizes loudspeakers for their specific acoustic environment. This feature helps to eliminate unwanted resonances and provide an enhanced listening experience. By tailoring the audio output to the room's characteristics, the DSP-30 ensures uniform sonic quality throughout the space.

In addition, the device boasts comprehensive networking capabilities. With built-in support for Q-SYS and Dante protocols, users can easily integrate the DSP-30 into existing audio networks. This connectivity allows for remote management and control, enhancing workflow efficiency and enabling system monitoring from virtually anywhere.

The user interface of the DSP-30 is designed for ease of use, featuring a clear display and intuitive navigation. Users can effortlessly configure their audio settings and access presets designed for various applications, from small presentations to large-scale concerts.

Durability and reliability are paramount in the DSP-30’s design. Built with high-quality components, the unit is engineered to withstand the rigors of regular use in demanding environments, making it a trusted choice for audio professionals.

Overall, the QSC Audio DSP-30 combines innovative technologies with a user-friendly interface, making it an essential tool for anyone looking to achieve exceptional audio performance in a variety of settings. Its flexibility, advanced processing features, and integration capabilities position it as a leader in the digital audio processing domain.