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Drawmer Masterflow DC2476 Operator's Manual

Digital mastering processor
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DC2476
DIGITAL MASTERING PROCESSOR
COPYRIGHT
This manual is copyrighted 2001 by Drawmer Electronics, Ltd. With all rights reserved. Under copyright laws, no part of this publication
may be reproduced, transmitted, stored in a retrieval system or translated into any language in any form by any means, mechanical, opti-
cal, electronic, recording, or otherwise, without the written permission of Drawmer Electronics Ltd

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Summary of Contents for Drawmer Masterflow DC2476

  • Page 1 COPYRIGHT This manual is copyrighted 2001 by Drawmer Electronics, Ltd. With all rights reserved. Under copyright laws, no part of this publication may be reproduced, transmitted, stored in a retrieval system or translated into any language in any form by any means, mechanical, opti-...

  • Page 2: Warranty

    In the interests of product development, Drawmer reserve the right to modify or improve specifications of this product at any time, without prior notice.

  • Page 3: Table Of Contents

    Chain/ Param ........21 Contacting Drawmer ......37 Effects .

  • Page 4: Safety Consideration

    For the USA DRAWMER DC2476 FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY IN- DIGITAL MASTERING PROCESSOR TERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a SAFETY CONSIDERATIONS Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 5: Introduction

    40kHz. This allows harmonics which extend above human hearing to be generated and preserved. These harmonics, although not audible Designed to be extremely easy and intuitive to use, the Drawmer DC2476 themselves, make a contribution to the sound quality. comprises a stage of dynamic equalisation, also incorporating full-band...

  • Page 6: Audio Connections

    AUDIO CONNECTIONS INSTALLATION PRECAUTIONS Analogue Inputs Should a fuse blow, replace it only with the same type and value as the one The inputs and outputs to the DC2476 are electronically balanced and would fitted. normally be connected to your system via a patchbay. Should unbalanced operation be required, simply ground pin 3 on the XLR connectors.

  • Page 7: Installation And Connection Guide

    INSTALLATION AND CONNECTION GUIDE...

  • Page 8: Getting Started

    GETTING STARTED Analogue input. Basic Guide. Connect Left and Right input signals via the analogue XLR sockets. The Although it is not possible to drive the DC2476 into clipping (because of the rear panel push switch selects between maximum input levels of +7dBu automatic gain management system), it is still possible to produce a subjec- and +21dBu.

  • Page 9: Chapter 2 - Dc2476 Navigation

    The example demonstrates how straight forward the operating system CHAPTER 2 has been designed to work. DC2476 NAVIGATION To adjust the Mid band in the Attack of the Expander page. Step 1. FINDING YOUR WAY AROUND From the Input page, press the Chain/Param button to ensure that the Chain icon is visible.

  • Page 10: Effects Screen Navigation Map

    SCREEN NAVIGATION MAP The Effects Screens The Global Screens...

  • Page 12: Chapter 3 Control Key Overview

    CHAPTER 3 SAVE Enables newly created patches to be saved to either the user memories or CONTROL KEY OVERVIEW. to the optional S-RAM card. Newly created patches may be named with up to 16 letters. PATCH MENU To save the patch currently running on the machine, select ‘Save to RAM’ or ‘Save to Card”...
  • Page 13 PATCH - LOAD FROM INTERNAL MEMORY Shows the selected page function. Show a selection of patches. Rotate the control knob to scroll Shows the currently loaded patch. through a selection of patches. “F:” shows the source of the last Push to load. patch loaded: C = Card ;...
  • Page 14 PATCH - TOOLS Shows the selected page function. When “ Off ” is highlighted press knob to toggle between OFF/ON. “Write Protect: ON” is also displayed When Pv is selected (using the on the “ save to card ” page. Chain/Param button).
  • Page 15 PATCH - LOAD FROM CARD Shows the selected page function. Show a selection of patches. Shows the card status. Shows the currently loaded patch. Shows the selected patch. “C:” shows the source of the last patch: C = Card ; F = Factory ; U = User Arrow shows currently selected Rotate the control knob to scroll patch.

  • Page 16: Global

    OUT - Dither and Noise Shaping GLOBAL MENU Where necessary, noise shaped dither can be applied to reduce the bit depth The Global menu has six sections: Dig I/O, External Clock (XCLK), Word while maintaining the maximum possible dynamic range. It allows the output Length and Dither (OUT), Misc, Midi and Sine wave generator (SINE).
  • Page 17 GLOBAL - DIGIO When the Output SRate is being When Pv is selected (using the adjusted the previous value is shown Chain/Param button). in a black box and the selected value Use the Left or Right button is in a clear box. When the new value to select either the Analogue In has been selected, the old value is...
  • Page 18 GLOBAL - OUT OP Trim is the very last procedure in the effect chain. Rotate the knob to enter the selection. Note: The OP TRIM sets an output level which the DC2476 will never rise The “MED” shape is the preferred above.
  • Page 19 GLOBAL - MIDI When Pv is selected (using the Chain/Param button). Use the Left or Right button to select either the MIDI RX CHAN When selected push knob to toggle or the PROG CHANGE LOADS. Programme Change on/off. When selected push knob to toggle When the MIDI RX is selected.

  • Page 20: Control Keys

    CONTROL KEYS LED DISPLAY The main controls keys are: UP key and the DOWN keys which are used to scroll up or down through the display pages. LEFT key and the RIGHT key which are Edited Patch This is highlighted when the loaded Patch (User or Factory) has been edited.

  • Page 21: Chain/ Param

    CHAIN / PARAM This switch allows the user to select the required movement of the cursor. With the CHAIN highlighted the cursor manoeuvres through the chain of effects. COMPARE When changes are made to a selected patch, press to Compare the original settings with the new ones.

  • Page 22: Chapter 4 - Basic Effects

    Because the process is dynamic, low level signals will not be treated, and CHAPTER 4 when enhancing low frequencies to add punch to a mix, this can help avoid muddying the mid range while keeping the bass sound tighter than trying to BASIC EFFECTS do the same thing with conventional EQ.
  • Page 23 EQUALISER 3 BAND EXPANDER/GATE The equaliser section consists of an analogue modelled 5 band parametric Expanders are generally used to remove unwanted noise during what should equaliser with a wide range of frequency and bandwidth. Up to 18dB boost be passages of silence, but are also a means of undoing gain at very low or Cut is available on each band.
  • Page 24 LIMITER AND STEREO IMAGE OUTPUT The three-band limiter is designed to allow peaks signal levels to be controlled The Output section provides three level trims for the three frequency bands without introducing audible side effects unless the amount of limiting is prior to summing.

  • Page 25: Input

    INPUT - Page 1 A Gain Reduction bar display will appear if the Gain Management has responded to peaks. This will occur to peaks that exceeD -2dBfs. The dotted line shows the -2dB ceiling. Push the control knob to select either the Left, Right or Both channels for adjustment.

  • Page 26: Dynamic Equaliser And Full Band Compressor

    DYNAMIC EQUALISER AND FULL BAND COMPRESSOR The Gain Reduction bar graph shows when the Gain Management Shows the amount of compression. has reduced the overall EQ level to i.e. gain added to low level signals. avoid any clipping caused by the EQ boost.

  • Page 27: Equaliser

    EQUALISER - Page 1 Push the control knob to select The Graphical display shows the Gain, Frequency or Bandwidth. overall EQ Boost/Cut that has been applied by setting the Gain, Fre- quency and the Bandwidth.. When Pv is selected. Use the Left or Right button to step along the This Marker shows the centre Parameters of each band.

  • Page 28: Expander

    EXPANDER When Pv is selected. Use the Left or Right button to select either Threshold, Ratio, Attack, Release or Range. This Low band shows the band Mid band settings. High band Push the control knob to select the band to be adjusted. The wider bar shows the threshold for each band.

  • Page 29: Limiter And Stereo Image

    LIMITER AND STEREO IMAGE When Pv is selected. Use the Left or Right button to select either Release or Stereo Image. The gap indicates possible loss of mono information as the image is widened. Push the control knob to select the band to be adjusted.

  • Page 30: Output

    OUTPUT - Page 1 When Pv is selected (using the Chain/Param button). Use the Left or Right button to select either the Level or the Fader Shows whether the fader is up or function down. Push the control knob to select which band is to be adjusted.

  • Page 31: Crossover

    CROSSOVER Cross-over is common to Push the control knob Rotate the control knob to Expander, Compressor, to toggle through the adjust to the required value. Limiter/Width and Tube. selections. Left/Right toggles between “Moniter Bands” and When in “monitor bands” mode pressing the On returning to “set x-over”...

  • Page 32: Chapter 5 - Operation

    The three-band section of the DC2476 includes a stereo width control where CHAPTER 5 a separate control is provided for each of the three bands. Widening the bands beyond their default settings increases the stereo spread of the sound OPERATION while using a lower setting reduces the stereo width.
  • Page 33 Both the full band and split band compressors work using Drawmer’s ‘bootstrap’ One of the major achievements of the DC2476 design is the equaliser section, control system so that as more compression is applied, the overall gain is which sounds far more analogue and musical than most digital equalisers.

  • Page 34: Chapter 6 - Information

    CHAPTER 6 INFORMATION PRESET FACTORY PATCHES Preset Name User Comments Preset Name User Comments NEUTRAL PATCH GENTLE TREBLE CD MASTERFLOW GENTLE BASS SUBTLE MASTER GENTLE MID DE-ESS POWER GUITAR DE-ESS + SWEET BIG TALK PHAT BOTTOM POWER TALK TIGHT BOTTOM SMALL TALK SWEET N PHAT PUSH-PULL...
  • Page 35 USER DEFINED PATCHES Preset Name Preset Name Preset Name Preset Name...

  • Page 36: Midi Control Codes

    MIDI CONTROL CODES Control Value Value Control Control Value Effect Effect Effect Hi Comp Thresh ---- Reserved ---- Low Xover Hi Comp Ratio ---- Reserved ---- Hi Xover Hi Comp Attack ---- Reserved ---- ---- Reserved ---- Hi Comp Release ---- Reserved ---- Hi Comp Gain Left Gain...

  • Page 37: Chapter 7 General Information

    Please address correspondence to: A list of all main dealers can be found on the Drawmer webpages. Drawmer (Technical Help line) On receipt of this information, service or shipping instructions will be Coleman Street forwarded to you.

  • Page 38: Chapter 8 - Dc2476 Data

    PC- Card Interface CHAPTER 8 Connector Type 1 PCMCIA SRAM card DC2476 DATA Standards PC-Card 2.0, Jeida 4.0 standard Card Format upto 256Kb. SPECIFICATION Internal Battery Type Varta Mempac Ni-MH Analogue Input Rating 3.6V 150mAh Connectors XLR Balanced (Pin 2 Hot) Impedance 10 K Max.

  • Page 39: Block Diagrams

    BLOCK DIAGRAM Ref:2v00 K 21-10-2002...

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