DRAWMER CMC3 MONITOR CONTROLLER CONTENTS Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Consideration . . . . . . . . . . . . . . . . . . 3 Radio Frequencies Statement . . . . . . . . . . . . . 3 Chapter 1 - Introduction Introduction . . . . . . . . . Installation . . . . . . . . . . Power Connection . . . . . . Security . . . . . . . . . . . . . Audio Connection . . . . . . Typical Connection Guide . ..... ..... ..... ..... ..... ..... .. .. .. .. .. .. ... ... ... ... ... ...
DRAWMER COPYRIGHT This manual is copyrighted © 2018 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, optical, electronic, recording, or otherwise, without the written permission of Drawmer Electronics Ltd.
CHAPTER 1 ONE YEAR LIMITED WARRANTY Drawmer Electronics Ltd., warrants the Drawmer CMC3 Monitor Controller to conform substantially to the specifications of this manual for a period of one year from the original date of purchase when used in accordance with the specifications detailed in this manual.
DRAWMER CMC3 Monitor Controller FULLY FEATURED MONITOR CONTROLLER FOR STUDIOS OF ALL SIZES. PRECISE, COMPACT & AFFORDABLE. The CMC3 Compact Monitor Controller consolidates the feature sets of Drawmer's 3 most popular monitor controllers: W hilst retaining the famed accurate, and transparent audio quality of the MC2.1, it has the precision and control of the MC3.1 and the low profile, compact design of the CMC2. It is equally at home in a serious home studio as in a professional recording facility.
Multiple Connections The CMC3 is very well connected with 4 stereo inputs in total: 1x SPDIF digital input (24 bit/192kHz), using the same DAC chipset as our established MC3.1 monitor controller, 2 stereo balanced jack inputs, plus a 3.5mm jack with variable level control for your Smartphone/MP3 Player. In addition, it has a 2 professional quality headphone outputs with a separate amplifier and level control, that provide the same audio quality and mix checking as the CMC3 does through the speakers.
DRAWMER INSTALLATION The CMC3 is a free standing, desktop unit. We have endeavoured to make the CMC3 as small as possible without compromising on controls, connections and above all sound quality. The unit has a footprint of just 27cm x 16cm with controls on the top, headphone and mp3/phone input on the front and all other connections on the rear panel.
POWER CONNECTION The CMC3 unit will be supplied with an external switching mode power supply that is capable of 100-240Vac continuous (90-264Vac max) and so should work globally. We strongly advise that the power supply that has been supplied with the CMC3 is used, rather than one with the equivalent ratings. In addition, should the power supply fail for any reason we strongly advise that you contact Drawmer for a replacement rather than repairing the unit yourselves.
DRAWMER AUDIO CONNECTIONS • Interference: If the unit is to be used where it maybe exposed to high levels of disturbance such as found close to a TV or radio transmitter, we advise that the unit is operated in a balanced configuration. The screens of the signal cables should be connected to the chassis connection on the XLR connector as opposed to connecting to pin1. The CMC3 conforms to the EMC standards.
TYPICAL CONNECTION GUIDE CMC3 - Monitor Controller 9
CHAPTER 2 DRAWMER CONTROL DESCRIPTION As well as a transparent and precise signal path the CMC3 Compact Monitor Controller incorporates many impressive features which are invaluable to the sound engineer when listening to and examining the quality of the audio. 1 SOURCE SELECT Four switches select which of the analogue inputs - I/P1, I/P2 (9) and AUX (1b), and digital input - DIGI (8), are heard at the Speaker Outputs (10) and Headphones (6b).
2 MASTER VOLUME The Monitor Volume control (2) adjusts the signal level of both stereo channels for all speaker outputs. The Volume knob affects the volume of the monitors A,B,C and SUB only and does not have a bearing on any other output such as the headphones or talkback jack.
DRAWMER 3 SPEAKER SELECT Four switches select which of the four speaker outputs A, B, C or SUB are heard (10). Each switch can be operated individually or simultaneously and in any combination and is perfect for performing A/B comparisons between various monitor setups. As the switches do not toggle between outputs when doing A/B comparisons both of those switches should be pressed at the same time i.e.
Note that the left and right Cut do have an influence on both the speaker outputs and the headphones. When activating Left or Right Cut whilst using headphones the signal is not 100% panned one way or the other - i.e.
DRAWMER 8 DIGITAL INPUT In addition to the three analogue inputs the CMC3 a dedicated DAC has been incorporated into the CMC3, capable of converting incoming sample rates up to 192kHz at a word length of 24 Bit The SPDIF is via 75 ohm cable with a phono socket, where the data conforms to the Sony Phillips Digital InterFace format. Because this connector only provides an unbalanced termination, the recommended maximum length for this cable is 3 metres, even with very high quality cable.
Talkback Output: A dedicated ¼" mono talkback output jack can be found on the rear panel, so that, as well as being routed through the headphones, a talkback signal can be routed to other devices at the engineers discretion. This could usually be patched into the live-room active monitor speakers for convenience when recording acoustic ensembles where the performers may not wish or need to wear headphones.
DRAWMER Mix Checking Tips Due to the versatility of the CMC3 some very useful techniques for checking your mix can easily be achieved, that can help improve the balance within a mix, pinpoint stereo width, phase and mono problems, and also aid when monogising. The following are a few handy tips to help eradicate problems and bring about a balance within the mix: Not too loud... Give your ears a break.
Cut It Out... Using the left and right cut switches will highlight the stereo balance of each channel. In stereo the mix sounds ok, however, it may be that you want an instrument to be panned so far left that it doesn’t occur at all in the right channel, by cutting the left and only hearing the right channel you will hear whether the instrument bleeds across, and panning adjustment can be made.
DRAWMER the mono switch should be active but also either Left Cut or Right Cut should also be activated (depending on preference/location) to derive the signal from a single location. Listen to the ‘Stereo difference’ or side signal A very useful facility of the CMC3 is the ability to listen to the ‘stereo difference’ or side signal, very quickly and easily. The side signal is the difference between the two channels, and describes those elements that contribute to the stereo width.
CHAPTER 3 CMC3 GENERAL INFORMATION IF A FAULT DEVELOPS SPECIFICATION For warranty service please call Drawmer Electronics Ltd. or their nearest authorised service facility, giving full details of the difficulty. A list of all main dealers can be found on the Drawmer webpages . On receipt of this information, service or shipping instructions will be forwarded to you. Note: These specifications are provisional and may alter slightly upon product release.
DRAWMER BLOCK DIAGRAM Ref:1v0B 14-08-18 20