User manual MIDAS CONSOLES DL431 MIC SPLITTER

[. . . ] DL431 Mic Splitter Operator Manual Midas Klark Teknik Limited, Klark Industrial Park, Walter Nash Road, Kidderminster. Tel: +44 1562 741515 Fax: +44 1562 745371 Email: info@midasklarkteknik. com Website: www. midasconsoles. com DL431 Mic Splitter -- Operator Manual DOC02-DL431 Issue B -- April 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 document was correct at the time of writing. [. . . ] This filter can be switched into circuit following the mic amp to make better use of the analogue-to-digital (A/D) conversion headroom by removing the very low frequency audio content. High pass filters are used to remove unwanted subsonic frequencies, which are traditionally about 30Hz. A typical use for this filter is to reduce rumble. DL431 Mic Splitter Operator Manual 24 Appendix A: Application Notes DL431 Mic Splitter Operator Manual 25 Appendix B: Functional Block Diagram The following is the signal flow diagram of the DL431 Mic Splitter. DL431 Mic Splitter Operator Manual 26 Appendix B: Functional Block Diagram DL431 Mic Splitter Operator Manual 27 Appendix C: Technical Specification This appendix contains the technical specifications specific to the DL431 Mic Splitter. For full technical specifications for the XL8 Live Performance System, see the owner's manual (part number DOC02-XL8). Due to a policy of continual improvement, Midas reserves the right to alter the function or specification at any time without notice. General specifications Dimensions Net weight Power requirements Operating temperature range Storage temperature range 6U x 410 mm deep 21. 5 kg 100V to 240V, 50 to 60Hz +5°C to +40°C -20°C to +60°C Inputs and outputs Analogue inputs Connector Phantom power Gain control A 3-pin XLR balanced 48-volt with local switch and remote control from XL8 control centre -2. 5dB to +45dB analogue gain in 2. 5dB steps with local and remote control; plus a further ±20dB of hi resolution interpolated DSP trim Independent second channel identical to above 30Hz high pass with local defeat switch and remote control from XL8 control centre Independent second channel identical to above 7-segment, -18dBu to +24dBu Meters can be switched to monitor A or B pre-amplifiers 24-bit, 96k and 128 times over sampling Independent second channel identical to above Gain control B Filter A Filter B Meter (24-off) Meter A/B A/D converter A A/D converter B DL431 Mic Splitter Operator Manual 28 Analogue outputs Connector A Connector B Connector C Appendix C: Technical Specification 3-pin XLR balanced Independent second channel identical to above Independent third channel on front-mounted 3-pin XLR, balanced and transformer isolated (with fixed gain of -6dB) 1/4" jack 3-pin XLR balanced Headphone connector Audio monitor Digital (system) outputs System connector A System connector B Duplicate connector A AES50 (24 channels of digital audio) on Ethercon XLR Independent second channel identical to above AES50 (24 channels of digital audio) on Ethercon XLR providing dual redundant back up of A channels AES50 (24 channels of digital audio) on Ethercon XLR providing dual redundant back up of B channels Duplicate connector B DL431 Mic Splitter Operator Manual 29 Appendix D: Service Information This appendix gives you servicing information for your unit. If you are in any doubt or have queries about any of the procedures in this appendix, contact Midas Technical Support. Contact details can be found at the front of this manual. Routine maintenance To help keep your unit in good working order and to make sure it gives you optimum performance, we recommend that you carry out the following: Monthly · · · · Clean the unit, as detailed in "Cleaning" below. Check all controls, such as pushbuttons, for freedom of operation. Check the functionality of all controls and indicators, such as LEDs. Check the functionality of the equipment. Yearly · Clean the internal fans, see "Cleaning the internal fans" below. Cleaning Switch off the unit and electrically isolate it from the mains before cleaning. Clean the unit using a dry, lint-free cloth. Don't use harsh abrasives or solvents. When cleaning the unit, take great care not to damage the controls or LCD screen. Cleaning the LCD screen Carefully wipe the surface of the LCD screen with a soft, lint-free cloth using ethanolic liquid, such as a screen cleaner for LCDs, or by using a screen wipe specially designed for the purpose. When cleaning the LCD screen, please take the following precautions: · · · Don't use harsh abrasives, such as paper towels. Don't apply liquids directly to the screen. Don't use ammonia-based cleaners and solvents, such as acetone. Cleaning the internal fans The unit's internal fans need to cleaned regularly to remove the build of dust, dirt etc. We recommend that they are cleaned at least once a year, provided the unit has been operated under normal conditions. However, if the operating conditions are more adverse or extreme, for example, if the unit is operated in the vicinity of smoke machines, new carpets etc. , this frequency should be increased accordingly. This procedure must be carried out by a fully qualified service engineer. DL431 Mic Splitter Operator Manual 30 Equipment disposal Appendix D: Service Information When this equipment has come to the end of it useful life, its disposal may come under the DIRECTIVE 2002/96/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on waste electrical and electronic equipment (WEEE). Hazardous substances in WEEE contaminate water, soil and air and ultimately put at risk our environment and health. The directive aims to minimize the impacts of WEEE on the environment during their life times and when they become waste. The WEEE directive addresses the disposal of products when they have reached the end of their life and contributes to the reduction of wasteful consumption of natural resources. [. . . ] YOU MUST MAKE SURE ALL MAINS BAY SWITCHES ARE OFF AND MAINS IS SWITCHED OFF AT THE POWER OUTLET(S) FIRST. Before switching on, check that all monitor loudspeaker power amplifiers are turned off or muted. After connecting up the audio cables, carry out the following: PowerCon® socket Mains plug 3 Mains outlet 1 2 PowerCon® connector x2 x5 Rear of XL8 Control Centre 1 2 Plug the two control centre's mains PowerCon® cables into the mains power outlets. Insert the two mains PowerCon® connectors into the PowerCon® sockets on rear of control centre, observing the WARNING! [. . . ]