Tecnare DMA 8X8 DSP Matrix Operation Manual

Introduction

Welcome to the Tecnare DMA 8X8 Operation Manual. This manual provides comprehensive details on the operation, features, and specifications of the DMA 8X8 DSP Matrix, a professional audio processor designed by Exel Acoustics SL.

All Tecnare products are engineered for high performance and reliability. For further information or support, please visit the Tecnare website or contact their technical support.

Manufacturer: Exel Acoustics SL

Website: www.tecnare.com

Technical Support: (+34) 918 170 110 | support@tecnare.com

Important Safety Instructions

Please read and follow all safety instructions carefully before operating the device. Keep this document with the unit at all times.

• Read all instructions.
• Keep these instructions for future reference.
• Heed all warnings.
• Follow all safety, danger, and obligation warnings.
• Use only specified attachments and accessories.
• Do not use the apparatus near water.
• Clean only with a dry cloth.
• Do not block ventilation openings.
• Do not install near heat sources.
• Ensure proper grounding and power cord protection.
• Unplug during lightning storms or long periods of non-use.
• Refer servicing to qualified personnel.
• Caution: To reduce the risk of fire or electric shock, do not expose the device to rain or moisture.
• Caution: Do not remove covers, loosen fixings, or allow items to enter apertures.
• Caution: The rear of the product may get hot. Avoid direct skin contact during operation and for at least 5 minutes after power has been isolated.
• Caution: Position the product at floor level only when operated horizontally.
• Do not expose to dripping or splashing. Do not place liquid-filled objects near the equipment.
• Ensure the mains plug is readily accessible for disconnection.
• Do not connect the unit's output to any other voltage source.
• If the equipment is used in a manner not specified by Exel Acoustics, its protection may be impaired.

Symbols Used

Warning Symbol (!): Indicates risk of injury. Non-compliance can lead to serious injury or death.

Caution Symbol (!): Indicates personal injuries. Non-compliance can lead to minor or slight injury.

Notice Symbol (i): Indicates damage to devices or the environment. Non-compliance can lead to property or equipment damage.

Tip or Pointer Symbol (?): Indicates information that contributes to better understanding.

Overview

Introduction

The Tecnare DMA 8X8 is a DSP-based remote audio processor designed for professional audio engineers. It is controlled via computer using the Tecnare DSP Controller software.

Key Features

• Optional DANTE® network audio.
• Network TCP/IP control for managing multiple devices.
• 8 balanced MIC/LINE inputs with independent phantom power.
• 8 balanced LINE outputs.
• Built-in ADI SHARC DSP 21489.
• 4 GPIO control ports (General Purpose Input/Output).
• Ethernet connectivity for programming and remote management via Tecnare DSP Controller.
• Remote control bus for DMA digital panels.
• 16 Configuration memory presets.
• Extensive DSP capabilities including routing matrix/mixer, link channel processing, level control, signal generator, parametric EQ, dynamics processing (expander, compressor, Auto Gain Control, Feedback Inhibition), delay, limiter, and automixer.
• USB Soundcard functionality (1-in-1-out).

Front and Rear Panel

Front Panel

The DMA 8X8 is designed for 19" rack mounting. The front panel features:

• PWR LED: Indicates the unit is switched on.
• STATUS LED: Indicates the operation status. It toggles between green and unlit when configured, or stays permanently lit if reset to factory settings.

Rear Panel

The rear panel provides comprehensive connectivity:

• Main Socket: IEC-C14 for AC power (230 Vac / 50Hz, 40W). 110V operation is optional.
• Ethernet Connector (RJ45): 10/100 Base-T for IP-based PC software control and network connectivity.
• GPIO: 6-bit 3.81mm terminal for 4 input/output logic control signals (0-5 VDC).
• RS-485 Port: For serial communication (Tx/Rx) with third-party control devices, supporting voice tracking and bus input control.
• RS-232 Port: For serial communication (Tx/Rx) with third-party control devices.
• USB Audio Port: Type B connector for USB soundcard functionality (1-in-1-out).
• Signal Input & Output Terminals: 2 x 12-pin Phoenix terminal blocks for 8 balanced analogue MIC/LINE inputs and 8 balanced analogue outputs.

Connections

Audio Input Connections

The DMA 8X8 features 8 balanced analogue MIC/LINE inputs via removable 12-pin Phoenix terminal strips. Input sensitivity supports microphone or line-level signals with nominal levels from 0dBu to 43dBu. +48VDC phantom power is available per input. Preamp gain and phantom power are controlled via the Tecnare DSP Controller software.

Audio Output Connections

The unit provides 8 balanced analogue outputs via removable 12-pin Phoenix terminal strips. The output section is calibrated to +4dBu with 20dB headroom, meaning 0dBFS digital signal equals +24dBu output.

Audio Wiring Reference

Balanced Connection: For XLR connectors, HOT (+ or 'in phase') connects to pin 2, COLD (- or 'out of phase') connects to pin 3, and GND connects to pin 1. The input cable shield should connect to Pin 1 for EMC performance.

Unbalanced Connection: Not recommended. If used, the signal conductor connects to XLR pin 2, and the 'Cold' conductor/cable screen connects to pin 1, with a short connection between pin 1 and pin 3.

Ethernet Port

The RJ45 Ethernet port enables programming and control via the Tecnare DSP Controller software. It supports direct point-to-point connection or network connection. IP address configuration is necessary for communication.

RS-232 and RS-485 Ports

These ports facilitate serial communication with external control devices. Specifications for baud rate, data bits, parity, stop bits, and flow control are provided for both RS-232 and RS-485 connections, including wiring diagrams for DB9 connectors.

GPIO Remote Control Port

The DMA 8X8 offers 4-channel logic input/output via GPIO terminals. Inputs accept 0-5 VDC control voltage, and outputs are 0-5 V NO/NC relay outputs, configurable for various functions.

USB Soundcard

The USB Type-B port functions as a USB soundcard for recording and broadcasting audio with PCs. Drivers install automatically upon connection.

Typical Application Example

The DMA 8X8 can be used to connect microphones to amplifiers. Remote controls can be daisy-chained for functions like preset setup, volume control, and source selection via UDP.

Control Panels

Panel A-DMA8X8

Features 8 buttons and 1 rotary knob for functions like gain adjustment, volume, mute, preset selection, and command. Connected via Ethernet and supplied by PoE.

Panel B-DMA8X8

Features a 1.3" OLED screen and an encoder knob for menu navigation, parameter adjustment, and configuration. Connected via Ethernet and supplied by PoE.

Technical Specifications

Audio

• Input impedance: 9.4 kΩ balanced
• Output impedance: 102 Ω balanced
• Input Gain: 0/6/12/18/24/30/36/42/48 dBu
• Input Level: 0/-6dB
• Max Level: +24dBu
• Frequency Response: 20Hz - 20kHz ± 0.2dB
• THD+Noise: 0.003% @4 dBu
• Dynamic Range: 110 dB
• Background Noise (A-weighted): -91 dB
• Channel Isolation: 108 dB @1kHz
• Phantom Power: +48V

Indicators, Control & Communications

• Front panel monitoring: Power, Status LEDs.
• Rear panel network/control: Ethernet, RS-232, RS-485, UDP.

DSP

• Processor: ADI SHARC 21489
• Sample Rate: 48kHz/24bits
• Work Mode: Stereo, Bridge, Mono, Free Matrix
• System Delay: <3 ms

Power Supplies

• Input voltage: AC 230 V / 50-60 Hz nominal ± 10% (110V optional).
• Max Power Consumption: <40 W.

Thermal

One variable speed fan. Airflow from right to left.

Physical

• Height: 1HU, 44mm
• Width: 482mm, 19" (front panel)
• Depth: 440mm, 17.32" (rear chassis) / 200mm, 7.87" (behind rack)
• Weight: 3 Kgs, 6.61 pounds

Connections

• Mains: IEC-C14
• Audio Input: 2 x 12 pin Phoenix Terminal
• Audio Output: 2 x 12 pin Phoenix Terminal
• USB: Type B (peripheral type)
• Network and Com.: 1x RJ45 socket (TCP/IP, 1000base-T/100base-TX), RS485/RS232 via 3 input/output Phoenix Terminal, GPIO via 6 input/output Phoenix Terminal.

Regulatory Compliance

This product complies with EMC & LVD directives and European standards EN60065, EN55103-1, EN55103-2, EN55032, EN55035. It also meets FCC Part 15B requirements.