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PROTECH |
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1/06 |
MODEL 2000 |
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WITH MIX-MINUS OUTPUTS. |
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AUTOMATIC MICROPHONE MIXER |
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INSTALLATION & OPERATION MANUAL |
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www.protechaudio.com
The Protech Audio Model 2000 Automatic Microphone Mixer is designed to be the best operating, most transparent auto-mixer, for fixed installations. From the Dugan Speech
System for transparent gain-sharing, to the mix-minus output on each input channel, to the card frame mechanical packaging, the Model 2000 is constructed to provide the designer and installer with every feature needed for perfect auto-mixer installations.
Before proceeding further, please make note that the
Model 2000 is shipped from the factory with all preliminary adjustments made. The gain on each input channel is set to 50dB, the tone controls on each are set to flat, and the master output level is set to unity. The unit should be installed, turned on and listened to, before any additional adjustments are made. In many installations, no further adjustments will be required.
The first feature to make note of is the patented Dugan Speech System for proper gain sharing in automatic mixing applications. This operating system, when properly implemented, results in the best, most transparent automatic mixing to be found anywhere. A short listening demonstration has impressed even the most critical audio system designers. We at Protech Audio have worked directly with
Dan Dugan Sound Design, for almost 3 years, to achieve the optimum implementation of his superior auto-mixing architecture.
The second feature to be discussed is the mix-minus output on each input channel. Other systems require any number of additional pieces of equipment, like wiring matrixes, to achieve mix-minus. In the Model 2000, the mix-minus feature is inherent in the design. Up to 8 separate mix-minus outputs are inherent in each card frame assembly.
In addition to the mix-minus output, each input section incorporates a number of features, to allow installations to be done quickly, with a minimum of wiring and set-up time. High-Pass filters, Bass and Treble Controls, Logic
Outputs, Phantom Power, and Mute functions are built into each input channel.
The output card has provision for two balanced line outputs, Auxillary Input, switch selectable Master/Slave operation, Gain Trim, Remote Volume Control, Group
Mute, optional Automatic Level Control, and optional
Pink Noise Generator
The optional Automatic Level Control works in a very unique manner. Instead of adjusting levels at the output only, the ALC reaches back into each input channel and readjusts the gain at each input. This feature allows the mixminus to remain properly adjusted.
The card frame assemblies are linkable, to create systems with up to 100 microphone inputs. The linking is accomplished by using standard DB15 cables.
Protech Audio Corp., 192 Cedar River Road, Indian Lake New York, 12842 Voice 518-648-6410 Fax 518-648-6395
INDEX
Page 2 - Index and Unpacking Instructions. Page 3 - Unpacking Instructions.
Page 4 - Quickstart Set-Up
Page 6 - Input Card Description.
Page 7 - Input Card Mechanical and Connections. Page 8 - Output Card Description.
Page 9 - Output Card Mechanical and Connections. Page 9 - Pink Noise Generator Option
Page 10 - Using Mix-Minus Outputs. Page 11 - Linking Chassis'
Page 12 - Remote Level Controls
Page 14 - Automatic Level Control Option
Page 16 - Using INTEGRA III SYSTEM Cards With Model 2000 Page 17 - Blank
Also reference application note AN2000.
The Model 2000 Automatic Microphone Mixer is shipped from the factory with all cards plugged into their proper slots. The mechanical drawings on the facing page show the position of individual types of cards. If your system required less than 8 inputs, the system is shipped with the higher number card slots empty. If your systems required more than 8 inputs, additional frames have been shipped, along with the necessary link cables.
CAUTION: The Model 2000 has been assembled and aligned at the factory. The unit should be wired, turned on, and listened to, before any field adjustments are made.
UNPACKING-
1- Remove chassis assembly from carton.
2- Open card frame front panel by loosening two thumbscrews, remove pink anti-static shipping insert and discard.
3- Count input cards, output(s) card, power supply card(s), link cables, power supply transformers, to insure correct quantities.
MOUNTING
The Model 2000 Automatic Microphone Mixer is designed to be mounted in an industry standard 19" EIA rack. Care should be taken not to mount the unit next to power supplies, power amplifiers, or other equipment which generate strong AC fields.
WIRING-
All audio inputs and output(s) should be wired using double conductor shielded cable. Logic circuits may be wired using unshielded cable.
- Page 2 -
PRODUCT COMPONENTS
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FRONT VIEW |
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INPUT |
INPUT |
INPUT |
INPUT |
INPUT |
INPUT |
INPUT |
INPUT |
OUTPUT |
POWER |
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CARD |
CARD |
CARD |
CARD |
CARD |
CARD |
CARD |
CARD |
CARD |
SUPPLY |
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SLOT |
SLOT |
SLOT |
SLOT |
SLOT |
SLOT |
SLOT |
SLOT |
SLOT |
CARD |
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SLOT |
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1 TO 8 INPUT CHANNELS, |
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SLOTS 1 THRU 8 MAY BE USED FOR OTHER INTEGRA III SYSTEM MODULES |
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REAR VIEW |
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+15 |
MASTER |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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GND |
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-15 |
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GND ON |
LINK |
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IN |
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18VACT |
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AC |
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CT |
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AC |
OUT |
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GND |
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POWER SUPPLY, 1 PER |
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CHASSIS |
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LINK CABLE |
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DB15 |
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MALE |
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FE- |
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MALE |
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Connector Plugs Into |
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LINK IN |
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LINK OUT |
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Mating Connector On Chassis |
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(18VACT) |
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- Page |
3 - |
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