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Protech Audio Corp., 192 Cedar River Road, Indian Lake New York, 12842 Voice 518-648-6410 Fax 518-648-6395

MODEL 2000

AUTOMATIC MICROPHONE MIXER

WITH MIX-MINUS OUTPUTS.

INSTALLATION & OPERATION MANUAL

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 prelimi-

nary 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 installa-

tions, 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 imple-

mented, results in the best, most transparent automatic

mixing to be found anywhere. A short listening demonstra-

tion 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 assem-

bly.

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 mix-

minus to remain properly adjusted.

The card frame assemblies are linkable, to create systems

with up to 100 microphone inputs. The linking is accom-

plished by using standard DB15 cables.

PROTECH

1/06

www.protechaudio.com

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Indice de contenidos

Pagina 1 - WITH MIX-MINUS OUTPUTS

Protech Audio Corp., 192 Cedar River Road, Indian Lake New York, 12842 Voice 518-648-6410 Fax 518-648-6395MODEL 2000AUTOMATIC MICROPHONE MIXE

Pagina 2 - - Page 2

- Page 10 -TYPICAL INPUT CONNECTION, 1 OF 8123456789101112131415123456789101112131415123456789101112131415TOPOWER AMPGain SetBass ControlWeig

Pagina 3 - PRODUCT COMPONENTS

- Page 2 -Index and Unpacking Instructions.Unpacking Instructions.Quickstart Set-UpInput Card Description.Input Card Mechanical and Connec

Pagina 4

PRODUCT COMPONENTSINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTINPUTCARDSLOTOUTPUTCARDSLOTPOWERSUPPLYCA

Pagina 5 - INPUT CARD, SLOTS 1 THRU 8

Tone Controls -Each input card has a switch selectable high-passfilter, and Bass and Treble controls. The inputs areshipped with teh high-pass filter

Pagina 6 - AUDIO INPUTS

- Page 16 -The Model 2000-CH chassis will accomodate anumber of different INTEGRA III cards. Each cardhas a part number that starts with"2

Pagina 7 - INPUT FEATURES

HIGH PASS FILTER & TONE CONTROLS -Each input card has a slide switch selectable high-pass filter. Each input card slot has individual Trebleand Ba

Pagina 8 - OUTPUT SET-UP

- Page 14 -NOTE 1:Always turn the ALC assembly off (switch down)when adjusting any system gain controls, includ-ing mixer inputs, master gain control

Pagina 9 - OUTPUT FEATURES

- Page 8 -OUTPUT SET-UP-33dB-33dB-27dB-23dB-18dB-13dB-10dB-5dB0dB+4.5dB+5dB7:00 =8:00 =9:00 =10:00 =11:00 =12:00 =1:00 =2:00 =3:00 =4:00 =5:00 =MAST

Pagina 10 - USING MIX-MINUS OUTPUTS

- Page 9 -OUTPUT CARD ASSEMBLYSwitch allows chassis to be linked, as master or slave unit.A =MASTERSLAVE.SPACE RESERVED FOROPTIONAL ADD-ONAUTOMA

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