QSC Audio DSP-3 Specifications, Signal Processing 24 bit, 48 kHz, Power amplifier connectivity

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Section 3: Specifications

Signal Processing 24 bit, 48 kHz.

Frequency response

20 Hz–10 kHz ±0.3 dB (term. block inputs)

at 3dB below full

20 Hz–20 kHz ±0.7 dB (term. block inputs)

scale input voltage

20 Hz–20 kHz±0.2 dB (DataPort inputs)

 

 

Distortion

<0.01% THD+N @ +4 dBu out

 

 

Delay (throughput)

687.5 microseconds

 

 

Dynamic range

>93 dB unweighted

 

20 Hz–20 kHz, 1.5V, 4V and 9V sensitivity

 

>88dB unweighted

 

20 Hz–20kHz, 18V sensitivity

 

 

Polarity

In-phase or inverted

 

 

Mute

>90 dB attenuation

 

 

Inputs

 

Program inputs

2

Connector type

“Phoenix-style” (a.k.a.

 

“Euro-style”) detachable terminal blocks

Type

Electronically balanced

Grounding

All shield terminals connected to

 

chassis

Input sensitivity

1.5, 4.0, 9.0 or 18.0 Vrms

(full scale input level)

6, 14.5, 21.5 or 27.5 dBu

 

3.5, 12.0, 19.0 or 25.0 dBv

 

Units are selectable in software interface

Impedance

8.3 K Ohm balanced

 

3.7 K Ohm unbalanced

Common-mode rejection

>50 dB, 20 Hz–20 kHz

Crosstalk

>75 dB separation, 20 Hz–20 kHz

 

 

Outputs

 

Program outputs

2 (via HD-15)

Connector type

HD-15 DataPort connection

Pinout

Special, see appendix

Cable type

QSC DataPort cable

Qualified length

2 meters

Daisy-chain output

2 (1 per channel)

Connector

“Phoenix-style” (a.k.a.

 

“Euro-style”) detachable

 

terminal blocks

Type

Electronically balanced

Grounding

Shield terminal connected to

 

chassis

Output level

6.0 or 4.0 Vrms

(full scale)

18.0 or 14.5 dBu

 

15.5 or 12.0 dBv

Output impedance

600 Ohms balanced

Power amplifier connectivity

Power amplifier interface

Compatibility

all QSC and non- QSC amplifiers

Full-feature set

all QSC DataPort equipped amplifiers

Connector and cable

 

 

HD-15 VGA cable, 2 meters length

 

qualified (for longer runs, contact

 

QSC’s Technical Services Department)

Amplifiers

one 2-Ch. amplifier per DSP-3

Amplifier status monitor

Clip indicator

Senses channel clipping

Protect indicator

Senses amplifier protect status

(status monitoring not available for non-DataPort amplifiers)

RS-232 Port

Cable Type

9-pin serial cable, male-to-female

Maximum Length

25 feet (7.6 meters)

Contact closure input (sense)

Inputs

1 discrete input (pin #9 of RS-232 port)

Configuration

Single-ended input

Resistance for closure detect <150 Ohms

Resistance for open detect

>1.9 K Ohms

TTL Compatible

 

Maximum Voltage= +9vdc

 

Note: Specifications are subject to change without notice.

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Contents DSP-3 Amplifier Accessory Hardware ManualPage Table of Contents Federal Communications Commission FCC Information Introduction- Overview Introduction- DSP-3 General Use Guidelines Turn the Equipment OFF & Install the Hardware Introduction- Quick StartConnect the Computer to the DSP-3 Turn the AMP Gain DOWN, Power UP the Amplifier & the DSP-3 Channel 1 Input & Channel 2 Input connectorsConnect the Audio Inputs Install the Software What the Signal Manager Application Looks LikeEstablish Communication Between the DSP-3 & the Computer Create a Simple DSP ConfigurationIntroduction- Quick Start Front Panel Dataport unlabeled- This is the output Rear PanelIntroduction- List of Functions & Features Signal Level Meter Introduction- Block Diagram Contact Closure Power SupplyAudio Output Path Data AcquisitionInstallation- Unpacking and Mounting Page Balanced connection is recommended for all inputs Installation- ConnectionsPuter VGA cables as they are not correctly constructed for DAISY-CHAINING the DSP-3 Outputs to Additional Amplifiers Power SourceInstallation- Application Examples Installation- Application Examples Installation- Application Examples Software Installation Signal Manager Software- Software InstallationRS-232 Port SpecificationsSignal Processing 24 bit, 48 kHz Power amplifier connectivityGeneral DimensionsGain Threshold Attack time Release time Architect’s and Engineer’s SpecificationsDescription of Encode Signals Appendix- DataPort PinoutData Port Pinout Pin with Strain Relief Phoenix Contact 17 76 16 Appendix- RS-232 Port Pinout & Connector P-N’sApplication Information Appendix- Application InformationReason Appendix- Preset Operation NotesCleaning Maintenance, Warranty & QSC Contact Information
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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.