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G R O U N D C O N T R O L S Y S T E M SYSTEM MIX Owner's Manual I G I T A L U S I C O R P O R A T I O N...
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This publication is protected by copyright and all rights are reserved. No part of it may be reproduced or transmitted by any means or in any form without the express prior consent in writing from Digital Music Corporation. Ground Control, System Mix, GCX, and Ground Link are trademarks of Digital Music Corp.
System Mix is a dual stereo line level audio mixer designed specifically for electric guitar systems. With System Mix, you can combine the line level outputs of your rack effects with the pure tone of your amp or preamp. This results in lower noise and better tone.
2. Operation ________________________________________________________ 2.1 Front Panel 1. Power LED: Lights when power is supplied to System Mix. 2. MIX LEVEL CONTROLS: Stereo output volume for MIX 1 and MIX 2. Unity gain is set with the knob at 12 o'clock.
________________________________________________________ 3.1 Mix 1 IMPORTANT: Do not connect speaker outputs of an amplifier to the System Mix. Doing so may cause serious damage to your mixer and your amplifier. The System Mix inputs are intended for line level signals only.
The System Mix inputs are set to unity gain. The relative levels of all of your inputs are therefore determined by the output levels of your devices. Setting levels is a critical part of your guitar system.
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4. Effects Outputs One by one, raise the output level of each of your effects devices until the desired effect level is reached. 5. Wet/Dry Balance You may reduce the output level of the effects devices if you want less effects in your final mix. If you want still more effects, lower the output of your preamp or effect send, and repeat steps 3 and 4.
4. Putting Your System Together ________________________________________________________ The System Mix is a very flexible and versatile mixer. It can be used in many different ways. The following examples demonstrate some typical systems. Your needs may require different connections. These systems are simply meant to be starting points. Remember, all connections are intended for line level signals only, NOT speaker connections.
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1. The guitar is connected to the amp or preamp input. The preamp output or amp effect send is connected to the Left input of Mix 1 In 1. The passive split sends copies of the preamp signal to the mono inputs of the effects devices. The stereo outputs of the effects are brought back to the mixer to be blended with the original preamp tone.
There are many benefits and uses of this type of smooth transition. The following examples show how to use the GCX with the System Mix. For simplicity's sake, they show how the GCX would be added to the same systems described above.
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System #2 + GCX Loops This example uses six loops to switch the inputs of the effects. It is important to note that although FX 1 and 2 are stereo, they begin with a mono signal and therefore need only one loop each to switch them.
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connection and the stereo outputs of FX 3 and 4 are brought back to the mixer (In 2 and In 3 of Mix 2) to be blended with it. 5. Mix 2 Outs are connected to the power amp input or the amp effect return. In this example, the Mix 1 knob controls the level of the preamp and FX 1 and 2.
Appendix A ________________________________________________________ Technical Specifications Mix 1 and Mix 2 Input Impedance Left and Right channels 44kΩ Left only, used as mono input 22kΩ Maximum Input Level 7 V RMS or +19dBu Maximum Voltage Gain +6 dBu Output Drive 7 V RMS across 5kΩ D I G I T A L M U S I C C O R P O R A T I O N...
Warranty Information ______________________________________________________ Digital Music Corp. warrants this product against any defects that are due to faulty material or workmanship for a period of five years from the date of original retail purchase. This warranty does not include damage to the product resulting from accident or misuse.
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