Midas DL371 Operator's Manual
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Midas DL371 Operator's Manual

Midas DL371 Operator's Manual

Audio system engine
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DL371 Audio System Engine
Operator Manual
Midas Klark Teknik Limited,
Klark Industrial Park,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel: +44 1562 741515
Fax: +44 1562 745371
Email: info@midasklarkteknik.com
Website: www.midasconsoles.com
DL371 Audio System Engine — Operator Manual
DOC02-DL371 Issue C — July 2010
© Red Chip Company Ltd.
In line with the company's policy of continual improvement, specifications and function may be
subject to change without notice. This Operator Manual was correct at the time of writing. E&OE.

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  • Page 1 Fax: +44 1562 745371 Email: info@midasklarkteknik.com Website: www.midasconsoles.com DL371 Audio System Engine — Operator Manual DOC02-DL371 Issue C — July 2010 © Red Chip Company Ltd. In line with the company’s policy of continual improvement, specifications and function may be...
  • Page 3 IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.
  • Page 5 Midas EC-Declaration of Conformity The undersigned, representing the following manufacturer Manufacturer: Address: Midas Klark Teknik Ltd. Klark Industrial Park, Walter Nash Road, Kidderminster. Worcestershire. DY11 7HJ. hereby declares that the following product Product Type Number Product Description Nominal Voltage(s) Current* Freq.
  • Page 7 Midas™ or Klark Teknik™ Product, as well as other software that we provide for installation on this Product. The Midas™ or Klark Teknik™ Product will not operate in accordance with its documentation without this software.
  • Page 8 If you wish to receive a computer-readable copy of the source code for any of the GNU Linux Programs that have been provided with your Midas™ or Klark Teknik™ Product, send a cheque or money order (no cash accepted), your address and [£10.00] to cover the cost...
  • Page 9 GNU General Public License (GPL) For details of the Third Party Software License Attribution, Copyright and Terms and Conditions and Notices, and the GNU LESSER GENERAL PUBLIC LICENSE, see the Midas Digital Equipment GNU General Public License (GPL) Booklet part number DOC04-GPL issue A.

  • Page 11: General Precautions

    Do not insert your fingers or hands in any gaps 240VAC. or openings on the equipment, for example, vents. Each mains inlet is to be sourced from its own separate wall-mounted mains outlet socket. Otherwise, their mains sources must be suitably DL371 Audio System Engine Operator Manual...
  • Page 12 (20Hz appropriate, they should have Pin 1 connected to 20kHz), the signal to noise ratio may be to the cable screen. degraded. Degradation of up to 60dB at a frequency corresponding to the modulation DL371 Audio System Engine Operator Manual...
  • Page 13 (that is, items that cannot be readily obtained from multiple retail outlets) supplied with this equipment must be used with this equipment; do not use any alternatives as they may not fulfil the RF requirement. DL371 Audio System Engine Operator Manual...
  • Page 14 Precautions DL371 Audio System Engine Operator Manual...

  • Page 15: Table Of Contents

    Equipment disposal ........22 DL371 Audio System Engine...
  • Page 16 Switching the PRO6 Control Centre on/off .....38 Setting up the DL351 Modular I/O unit ID .....39 DL371 Audio System Engine Operator Manual...

  • Page 17: Chapter 1: Introduction

    The DL371 Audio System Engine (and router) is of user-configurable sub-modular construction and provides power and interconnection for up to seven DSP cards and a router card (dual width). The DL371 Audio System Engine is housed in a 7U, 19” rack mount box.

  • Page 18: Features

    Warranty and registration Midas has total confidence in the quality and reliability of this product. To back this up, this product comes with the standard Midas and Klark Teknik three year warranty. Please take the time to register your product by completing and returning the registration card or registering on our website at www.midasconsoles.com.

  • Page 19: About This Manual

    About this manual About this manual This is the operation manual for the DL371 Audio System Engine. It is intended to help get your DL371 Audio System Engine installed and in operation as quickly as possible by giving you unpacking, installation, connection, setting up and operating instructions.
  • Page 20 Chapter 1: Introduction DL371 Audio System Engine Operator Manual...

  • Page 21: Chapter 2: Front Panel

    • mute LED constantly on = role is muted/error condition. On the PRO6 Control Centre, check the Diagnostics screen (GUI menu) for further status information. (The mute LEDs will illuminate briefly as the role starts.) DL371 Audio System Engine Operator Manual...

  • Page 22: Sync Source Panel

    PSU. The LEDs illuminate to show that their respective rail is live. When the unit is powered, all three LEDs should be illuminated; if not, see “Voltage rail failure” on page 21. DL371 Audio System Engine Operator Manual...

  • Page 23: Snake X And Y Panel

    LED and an error LED, which indicate the following: • Green ok LED pulsating = communication is good. • Green ok LED (internal only) extinguished = bad/no module fitted. • Red error LED illuminated = communication error. DL371 Audio System Engine Operator Manual...
  • Page 24 Chapter 2: Front Panel DL371 Audio System Engine Operator Manual...

  • Page 25: Chapter 3: Rear Panel

    Chapter 3: Rear Panel The rear panel of the DL371 Audio System Engine has three main sections, as shown below. Mains power sockets and DC isolator Connector panel; see “Connector panel” switch; see “Mains input” on page 10. on page 12.

  • Page 26: Mains Input

    IEC connector can same functionality as the power supply LEDs in be removed from the socket. the psu section of the front panel (see “psu panel” on page 6). DL371 Audio System Engine Operator Manual...

  • Page 27: Dsp Modules

    DSP modules Seven module slots in the rear panel each accept the following module. However, in the standard PRO6 configuration, only five modules are fitted to the DL371 Audio System Engine. DSP audio sections 0 and 1 with two sets DSP control section has the same of LEDs (link and data) for status indication.

  • Page 28: Connector Panel

    AES3 sync section comprising input copper Neutrik EtherCon® snake X and Y (female) and output (male) XLR chassis sockets for connecting the copper snake to the connectors. console. DL371 Audio System Engine Operator Manual...

  • Page 29: Router Panel

    Ethernet tunnel external connector for AES50 audio section with eight connecting ‘tunnelling’ Ethernet. EtherCon® sockets. Sockets 1 to 4 are for connection to the DL351 Modular I/O, while the remaining four (sockets 5 to 8) are optional. DL371 Audio System Engine Operator Manual...
  • Page 30 Chapter 3: Rear Panel DL371 Audio System Engine Operator Manual...

  • Page 31: Chapter 4: Getting Started

    • Snake — connect the two fibre optic/copper snakes to the required X and Y sockets on the rear panel of the DL371 Audio System Engine unit and then to the rear of the PRO6 Control Centre. See “Connector panel” on page 12.

  • Page 32: Operation

    The unit is now electrically isolated. Operation As the DL371 Audio System Engine is operated solely from the PRO6 Control Centre, there are no operating procedures associated with it. Refer to the PRO6 Control Centre Owner’s Manual (part number DOC02-DL3) for more details.

  • Page 33: Appendix A Technical Specification

    XL8 Live Performance System, please refer to the Owner’s Manual (part number DOC02-DL3). Due to a policy of continual improvement, Midas reserves the right to alter the function or specification at any time without notice. General specifications...
  • Page 34 Appendix B: Technical Specification Miscellaneous inputs and outputs Word clock IN connector Word clock OUT connector AES3 Sync IN connector 3-pin XLR AES3 Sync OUT connector 3-pin XLR External connector EtherCon® XLR DL371 Audio System Engine Operator Manual...

  • Page 35: Appendix B Replacing A Module

    (ESD) precautions are required before handling the module. The design of the DL371 Audio System Engine makes module replacement very easy and straightforward. The unit has rack guides in each of the seven module positions so that the modules can slide easily in and out. Each module is held in place by two screws.
  • Page 36 Secure the module using the two securing screws (see Figure 1 on page 19). Connect up the unit and switch it on (see Chapter 4 “Getting Started”). Check that the new module is functioning correctly (see “DSP modules” on page 11). DL371 Audio System Engine Operator Manual...

  • Page 37: Appendix C Service Information

    This appendix provides instructions on routine servicing and cleaning, and gives details on equipment disposal. Routine maintenance To help keep your DL371 Audio System Engine unit in good working order and to make sure it gives you optimum performance, we recommend that you carry out the following: Monthly •...

  • Page 38: Hot Unplugging/Plugging A Psu Module

    Always mute any loudspeaker system before performing this procedure. If you have to replace a PSU module, it can be done with the DL371 Audio System Engine unit switched on. This is known as “hot unplugging” (removing) and “hot plugging”...

  • Page 39: Appendix Dpro6 Live Audio System

    The PRO6 Control Centre forms the core of the PRO6 Live Audio System, which also includes two 19” rack units — a DL351 Modular I/O (7U) and a DL371 Audio System Engine (7U) — that are interconnected by a networked data system. The network carries both proprietary control data and open architecture AES50 digital audio, and uses readily available standard cabling and connectors.
  • Page 40 • Mic amps — High quality, overload tolerant microphone amplifier per input. • Dynamics — High quality dynamic processing with traditional analogue artefacts. Midas dynamics has four styles on the inputs and five on the outputs. • EQ — Fully interpolated phase shifting EQ for that “Midas” sound.

  • Page 41: Applications

    US, UK and Singapore. Applications The PRO6 is the ‘work horse’ mid- to high-end Midas Digital Console System, akin to the ‘industry standard’ Heritage 3000. Although the PRO6 is designed for the traditional touring live sound environment, it is also ideal for medium-sized theatre, small house of worship installations and broadcast.

  • Page 42: System Components (Standard Supply)

    DL442 analogue output module. There are a total of 56-off XLR mic/line inputs provided on the system. • 1-off DL371 Audio System Engine. This is populated with five cards, the two empty slots being blanked off. (If the optional N+1 redundant DSP module card is fitted, there will be six cards and one empty slot.)

  • Page 43: Mix Matrix

    3 master (stereo 80 in x 3 out and mono) buses mix matrix 16 matrix 83 in x 16 out buses mix matrix 6 solo 99 in x 6 out buses mix matrix DL371 Audio System Engine Operator Manual...

  • Page 44: Processing

    • Bass EQ filter with choice of four filter types. • Routing via level controls to 32 mix buses. • Routing via pan control to left and right master buses. • Routing to mono master bus. • Panpot (SIS™). • Direct output. DL371 Audio System Engine Operator Manual...
  • Page 45 • Direct input. Each of the three master output buses has: • Six-band PEQ. • Optional 31-band GEQ (replaces PEQ). • Five-mode frequency-conscious compressor with soft clip limiter and external side chain. • Insert point. DL371 Audio System Engine Operator Manual...

  • Page 46: Audio Physical Connections

    • 8-off 1/4” TRS analogue mic/line inputs (returns) and 8-off 1/4” TRS analogue outputs (sends). • 8-off AES/EBU XLRs providing eight digital inputs and eight digital outputs per module. • 8-off XLR analogue inputs. • 8-off XLR analogue outputs. DL371 Audio System Engine Operator Manual...

  • Page 47: Surround Capabilities

    Cat 5e cable is used for the ‘local’ connections and the single digital ‘snake’ (equivalent to a 384-channel analogue multi-core) between control centre and DL371 Audio System Engine. The combination of audio, control, clock and third party Ethernet data in a single network means that the hardware interfaces on a single RJ45 connection.

  • Page 48: Control Software

    Midas network, and will transfer audio to and from the Midas hardware without any additional interfaces or converters (provided it runs in TDM 96kHz mode). This will be particularly useful as the protocol gains acceptance with recording and playback devices, loudspeaker controllers, audio networking systems, digital amplifiers etc.
  • Page 49 • Netmax (AES/EBU audio link initially and CobraNet™ when the 48kHz I/O module is available on PRO6). • IRIS (for example, for RL amps). • Wireless mic controllers. • Your email. • DVD movies. DL371 Audio System Engine Operator Manual...
  • Page 50 Appendix F: PRO6 Live Audio System DL371 Audio System Engine Operator Manual...

  • Page 51: Appendix E Setting Up A Pro6 System

    DL351 Modular I/O and DL371 Audio System Engine units. Wiring instructions Connect the snake (Cat 5e or fibre optic) to the DL371 Audio System Engine unit and PRO6 Control Centre (see Figure 2 “Standard system configuration” on page 50).
  • Page 52 Figure 2: Standard system configuration Important: The PRO6 Control Centre, DL351 Modular I/O and DL371 Audio System Engine all have Volex locking type plugs fitted on their supplied mains cables, which plug into their mains IEC connectors. When fitted properly the Volex plug locks into place, preventing it working loose, or being inadvertently knocked loose or pulled out.

  • Page 53: Powering The Pro6 System

    Power up the PRO6 components, such as the DL351 Modular I/O unit and the DL371 Audio System Engine unit. This can be done in any order you like. After the status indicator at the top of each GUI screen has changed to green (as shown right), switch on the speaker sub-system.

  • Page 54: Switching The Pro6 Control Centre On/Off

    At the Shutdown ENTIRE system? prompt, click OK. After the shutdown sequence has finished, switch off the D.C. POWER switch (rear of control centre). Disconnect the mains cables from the rear of the PRO6. DL371 Audio System Engine Operator Manual...

  • Page 55: Setting Up The Dl351 Modular I/O Unit Id

    Press SELECT to go to the “Select ID” screen. Press the down arrow button to go to the ID 2 option. Press SELECT to choose the ID 2 option. Press MENU to exit menu mode. DL371 Audio System Engine Operator Manual...
  • Page 56 Appendix G: Setting Up A PRO6 System DL371 Audio System Engine Operator Manual...
  • Page 57 Thank you for reading through this Operator Manual. We hope you found it useful. Please feel free to send us your comments. Our contact details and website address can be found at the front of this manual.
  • Page 58 Midas Klark Teknik Limited Klark Industrial Park, Walter Nash Road, Kidderminster. Worcestershire. DY11 7HJ. England. Tel: +44 1562 741515, Fax: +44 1562 745371 Email: info@midasklarkteknik.com Website: www.midasconsoles.com...

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