Installation- Connections | QSC Audio DSP-3 manual

Section 2: Installation- Connections

CONNECTING AUDIO INPUTS AND OUTPUTS:

The audio inputs and outputs of the DSP-3 use 3-pin “Phoenix”-type (Euro-style) terminal block connectors. These connectors allow pre- wiring of inputs without any soldering and allow for rerouting of audio inputs by simply interchanging connector locations without the need for any tools. See Appendix for connector manufacturer’s part number reference.

Inputs- The audio input can be from one of two sources; the front-panel DataPort OR the terminal-block

INPUT connectors. Do not use both sets of inputs at the same time! Use balanced connections for the lowest possible noise levels and for minimizing the possibility of hum inducing ground loops.

Outputs- The DSP-3’s post-DSP (processed) audio is output to the rear-panel DataPort AND the terminal-

block OUTPUT connectors. The OUTPUT’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.

Balanced connection is recommended for all inputs.

The terminal block inputs on the DSP-3 are electronically balanced. Balanced input cables are recommended to mini- mize noise pick up and prevent ground loops.

With the connector oriented as shown at the right, connect the positive (+) signal wire to the left-most

Unbalanced inputs can be used if required. If unbal- anced audio sources are used, it is preferable to use an appropriate audio transformer (or other unbalanced-to-bal- anced “converter”) to provide a balanced input to the DSP-3. If this is not possible, then it is recommended that the negative terminal and shield terminal be connected to one another with a jumper wire.

To connect your signal wire to the terminal-block plug- back the screws out a few turns to open the wire-clamp, carefully insert the conductors into the proper location, and retighten the clamping screw.

The recommended stripping length for the wires is approximately 6 to 8

mm( 1/4 to 5/16 inch). When stripping the audio cable, be careful not to nick or cut the conductor strands. After each conductor has been stripped and dressed, insert it fully into the connector and tighten the retaining screw. When stranded wire is used, carefully twist the conductor strands together so that when they are inserted into the connector assembly, no loose strands short adjacent terminals.

DSP-3 specifications

QSC Audio has long been recognized for its commitment to delivering high-quality audio solutions, and the QSC DSP-3 is no exception. This advanced digital signal processor (DSP) embodies cutting-edge technologies, designed to enhance audio systems in a variety of environments, including live sound, broadcasting, and installation applications.

One of the main features of the DSP-3 is its exceptional audio processing capabilities, boasting 32-bit floating-point processing for superior sound quality. This ensures that audio remains clear and dynamic, with minimal distortion, even under demanding conditions. With a frequency response of 20 Hz to 20 kHz, the DSP-3 caters to a wide range of audio frequencies, ensuring no detail is lost in the sound.

The DSP-3 offers extensive input and output options, including multiple analog and digital inputs and outputs. This flexibility allows for seamless integration into existing sound systems, catering to various setups while accommodating different signal formats. Users benefit from the unit’s configurability, enabling tailored solutions for different applications.

One of the standout technologies integrated into the DSP-3 is its advanced FIR (Finite Impulse Response) filtering capabilities. FIR filters are known for their phase linearity, which is crucial for maintaining the integrity of the audio signal through the processing chain. This feature helps in achieving accurate sound reproduction, ensuring a natural listening experience.

Additionally, the DSP-3 comes equipped with a user-friendly interface, featuring real-time monitoring and control options. This interface allows sound engineers and technicians to swiftly make adjustments on the fly, resulting in optimized audio performance tailored to the specific venue or event.

Another notable characteristic of the DSP-3 is its robust protection features. With built-in limiters, compressors, and equalizers, the device safeguards audio equipment from damage due to excessive signal levels, while maintaining the best audio quality possible. This added layer of protection is invaluable in live sound scenarios, where unpredictable dynamics can occur.

Overall, the QSC DSP-3 stands out as a powerful and flexible digital signal processor that meets the needs of modern audio applications. Its combination of advanced processing capabilities, extensive connectivity, intuitive interface, and protection mechanisms makes it an essential tool for audio professionals aiming to achieve exceptional sound quality in diverse environments. Whether for live events, installations, or broadcast applications, the DSP-3 enhances audio performance and reliability, solidifying QSC's reputation as a leader in the audio industry.