DSP-4

Signal Processing Functions and Additional Features

Multiple Parametric Filters, assignable anywhere in the signal chain:

Variable Frequency

Bypass all EQs

Variable Gain

Add EQ

Variable Q

Delete EQ

Bypass one EQ

Show Response

Multiple Delays, assignable anywhere in the signal chain: 20.83 µsec incremental

910 msec maximum (total of all delays)

Compressor, assignable anywhere in the signal chain:

Gain

Release Time

Threshold

Show Response

Ratio

Bypass

Attack Time

 

Output Peak Limiter, assignable anywhere in the signal chain:

Gain

Release Time

Threshold

Show Response

Attack Time

Bypass

High and Low-Pass Crossover Filters, assignable anywhere in the signal chain:

Butterworth 6, 12, 18, 24 dB per octave slope Bessel 6, 12, 18, 24 dB per octave slope Linkwitz-Riley 12 and 24 dB per octave slope

Bypass one EQ

Delete EQ

Bypass all EQ’s

Show Response

Add EQ

Cutoff Frequency

High and Low-Pass Shelf Filters, assignable anywhere in the signal chain:

Variable Corner Frequency

Bypass all EQs

Variable Gain

Add EQ

Variable Q

Delete EQ

Bypass one EQ

Show Response

Signal Mute

Attenuation 0.1 dB steps

Mix Post Crossover Audio (21 Mixer)

Signal Splitter

Built-in Noise Generator (Pink & White)

Built-in Variable Frequency Tone Generator

Signal Polarity Reversal

Frequency Response

Clip and Protect Indication of the amplifier’s output

Predictive Delay Feature — produces less signal distortion than analog compressor/limiters — especially for fast attack times

Hardware

Two independent channels of DSP

48 kHz, 24-bit converters

No turn on pops or “zipper” noise

If the memory or hardware fails, unit turns on muted to prevent driver damage

Host interface via RS-232 or QSControl Audio Network System via CM16a Amplifier Network Monitor

Electronically balanced XLR inputs

Contact closure to trigger preset changes

Post DSP output signal for daisy chaining

Selectable input sensitivity: 1.5, 4, 9, 18 Vrms; 6, 14.5, 21.5, 27.5 dBu; 3.5, 12, 19, 25 dBV

Output signal gain

Software

“Drag-and-drop” configuration software

DSP processing power and memory is dynamically assigned to signal processing functions — eliminating the limitations imposed by fixed signal chain designs

Graphical representation of DSP resources

Firmware upgrades via RS-232

Hard copy printout of signal flow layout or parameter settings System Requirements

Windows® 98, NT4 (SP6), and 2000 (SP1)*

SVGA monitor at 800 x 600 (min.); 1024 x 768 recommended CD-ROM drive

32 MB RAM (min.)

10 MB free hard disk space (min.) Available RS-232 COM port

Male to female 9-pin serial cable (for programming) * Windows Me not supported

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QSC Audio DSP-4 manual Signal Processing Functions and Additional Features

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.