Intelix AMIX-4 Manuel utilisateur
AMIX Series
Automatic Mixers
Installer’s Manual AMIX-4
AMIX-8
Copyright Intelix 2004. All rights reserved.
Intelix LLC
2222 Pleasant View Road
Middleton, WI 53562
Phone: (608) 831-0880
Fax: (608) 831-1833
www.intelix.com
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AMIX Series Automatic Mic/Line Mixer User Manual
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Warranty
All Intelix products are guaranteed against malfunction due to defects in materials or workmanship for
two years after date of purchase. If a malfunction does occur during the specified period, the defective
product will be repaired/replaced, at Intelix’s option, without charge. Furthermore, the “Fresh Start”
program ensures that a product which has been repaired/replaced is itself guaranteed for an additional
two years.
This warranty does not cover: 1) Malfunction resulting from use of the product other than as specified
in the user manual; 2) Installation specific wiring; 3) Malfunction resulting from abuse or misuse of the
product; 4) Exterior chassis appearance; 5) Malfunction occurring after repairs have been made by
anyone other than Intelix or any of its authorized service representatives; 6) Acts of nature; 7) Optional
embedded software upgrades or updates.
All repair and service of Intelix products should only be provided by qualified service personnel. Please
contact Intelix for a list of authorized service agents. Other attempts at service or repair will void the
warranty. Warranty service is only offered after a return authorization number has been generated by an
authorized Intelix representative.
Toll Free Service Number: 1-866-4-MATMIX
April 2004
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AMIX Series Automatic Mic/Line Mixer User Manual
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Table of Contents
1.0 Introduction................................................................................................... 7
1.0 Introduction......................................................................................................................... 7
1.1 Safety Instructions............................................................................................................... 7
1.2 Maintenance Guidelines....................................................................................................... 7
1.3 Quick Start for the AMIX Mixer.......................................................................................... 8
1.3.1 Unpack and connect.............................................................................................. 8
1.3.2 Power and set-up................................................................................................... 8
1.3.3 Fine tuning............................................................................................................ 8
1.3.4 Optional special features activation........................................................................ 8
1.3.5 Linking multiple mixers......................................................................................... 8
2.0 Panel Descriptions......................................................................................... 9
2.0 Panel Descriptions................................................................................................................ 9
2.1 Mixer Front Panel................................................................................................................ 9
2.2 Mixer Front Panel AccessWindow........................................................................................ 10
2.3 Mixer Rear Panel................................................................................................................. 11
3.0 AMIX Functions............................................................................................ 12
3.0 AMIX Functions.................................................................................................................. 12
3.1 Threshold Sensitive Gating................................................................................................... 12
3.2 Number of Open Microphones............................................................................................. 12
3.3 Hold Time Potentiometer.....................................................................................................12
3.4 Off-Attenuation Amount Potentiometer................................................................................ 12
3.5 User Selectable Modes of Operation.................................................................................... 13
3.5.1 Last mic on............................................................................................................ 13
3.5.2 First come, first served.......................................................................................... 13
3.6 Priority Override.................................................................................................................. 13
3.7 AMIX Channel Exclusion..................................................................................................... 14
3.8 AMIX Software Version.......................................................................................................14
4.0 Installation..................................................................................................... 15
4.0 Installation of the AMIX Mixer............................................................................................ 15
4.1 Unpack, Connect, and Power-up.......................................................................................... 15
4.2 Connect Inputs..................................................................................................................... 15
4.3 Channel 4 or 8...................................................................................................................... 15
4.4 Connect Output................................................................................................................... 16
4.5 Power Up............................................................................................................................. 16
4.5.1 Connect the mixer power supply............................................................................ 16
4.5.2 Power up the mixer................................................................................................ 16
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5.0 Gain Structure................................................................................................. 17
5.0 Gain Structure....................................................................................................................... 17
5.1 Setting the AMIX Mixer Channels......................................................................................... 18
6.0 Mixer Fine Tuning.......................................................................................... 19
6.0 Mixer Fine Tuning................................................................................................................. 19
6.1 Low Cut Switch.................................................................................................................... 19
6.2 Phantom Power Switch......................................................................................................... 19
6.3 Aphex Aural Exciter............................................................................................................... 19
6.4 Output Limit Switch.............................................................................................................. 19
6.5 Select Bar Graph Readout..................................................................................................... 20
6.6 The Ground Lift Jumper........................................................................................................ 20
6.7 Rack the Mixer...................................................................................................................... 20
7.0 Setting AMIX Functions................................................................................. 21
7.0 Setting AMIX Functions........................................................................................................ 21
7.1 Channel Isolation................................................................................................................... 22
7.2 Fine Tuning AMIX Functions................................................................................................ 22
8.0 External Control............................................................................................. 23
8.0 External Control.................................................................................................................... 23
8.1 The Connectors..................................................................................................................... 23
8.2 DC Control........................................................................................................................... 24
8.2.1 Remote volume control.......................................................................................... 24
8.2.2 Connecting a remote volume control....................................................................... 24
8.2.3 Remote mute control.............................................................................................. 24
8.2.3.1 Wiring an external mute switch................................................................. 24
8.2.3.2 Wiring an external combination mute switch and volume control.............. 25
8.3 Circuit Board Map................................................................................................................. 25
8.4 Master Output Insert Patching...............................................................................................26
9.0 Passive Mixer Linking.................................................................................... 27
9.0 Passive Mixer Linking........................................................................................................... 27
9.1 Making the Cables................................................................................................................. 27
9.2 Connecting the Cables........................................................................................................... 27
10.0 AMIX-LINK Module.................................................................................... 28
10.0 AMIX-LINK Module.......................................................................................................... 28
10.1 Quick Start for AMIX-LINK............................................................................................... 29
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10.1.1 Installing the AMIX-LINK................................................................................... 29
10.1.2 Setting the DIP switches....................................................................................... 29
10.1.3 Connecting the control chain................................................................................ 29
10.1.4 Connecting the audio chain................................................................................... 29
10.2 Installation of the AMIX-LINK........................................................................................... 30
10.2.1 Installing.............................................................................................................. 30
10.2.2 Removing Jumper J1............................................................................................ 30
10.3 AMIX-LINK Connector Descriptions................................................................................. 31
10.3.1 Gate logic output port description........................................................................ 31
10.3.2 M-out/S-in and M-in/S-out port description......................................................... 31
10.3.3 Insert, link in, and link out port description.......................................................... 31
10.3.4 The ReO port description..................................................................................... 31
10.3.5 The RS232 port description.................................................................................. 32
10.3.6 Control pin port description................................................................................. 32
10.4 Connecting the AMIX-LINK Ports..................................................................................... 32
10.4.1 Connecting to the gate logic output port.............................................................. 32
10.4.2 Connecting to the ReO port................................................................................. 33
10.4.3 Connecting to the RS232 port.............................................................................. 34
10.4.4 Connecting to the control pin port........................................................................ 35
10.4.5 Wiring external devices to the control pin port..................................................... 35
10.4.6 Setting internal jumpers for the control pin port................................................... 36
10.4.6.1 To set jumpers....................................................................................... 36
10.5 Wring the Link In and Link Out Ports................................................................................. 37
10.5.1 Tapping and patching with the AMIX-LINK......................................................... 37
10.5.2 Using the link in port as a balanced link input....................................................... 38
10.5.2.1 If your source is balanced...................................................................... 39
10.5.2.2 If your source is unbalanced................................................................... 39
11.0 Troubleshooting Tips.................................................................................... 40
12.0 Technical Specifications and Line Drawings............................................... 41
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AMIX Series Automatic Mic/Line Mixer User Manual
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AMIX-8 Front and Rear
AMIX-4 Front and Rear
1.0 Introduction
This manual describes the components and operation of the Intelix AMIX Automatic Mic/line
Mixer and the Intelix AMIX-LINK link module. A sophisticated auto-mixer, AMIX provides
several modes of automatic mixing: last mic on, first-come, first-serve, and priority override.
Features include:
- 4 or 8-channel automatic mixing
- NOM automixing
- Threshold sensitive gating
- Optional RS232 or ReO control
- Linkable
- Chairperson (filibuster) override
- Phantom power
Essentially, AMIX is an automixer designed to work seamlessly within an integrated media
environment.
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Read all directions carefully before use.
The AMIX system includes a variety of electrical equipment; all precautions usually taken
with electrical equipment must be abided by. Specifically:
- Grounding: verify both the AMIX mixer and the devices connected to it are prop-
erly grounded.
- Power Supply: use only the power supply provided by the manufacturer or one that
meets the manufacturer’s specifications.
- Cords and Cables: route all cords and cables so that they will not be trip hazards or
subject to damage (from being run over or pinched) which could cause them to be-
come shock hazards. Pay particular attention to cords at plugs, convenience recep-
tacles, and the point where they enter the mixer.
- Fire: if the mixer or other electrical equipment catches fire, extinguish the fire using
a carbon dioxide (CO2) extinguisher or any extinguisher rated for electrical fires.
Never use a water extinguisher.
1.1 Safety Instructions
Electronic devices operate best in clean, well-ventilated environments. The AMIX mixer
contains many electronic components in a compact arrangement, thereby generating more
heat than the average electronic device. It should be located where it will be well-ventilated
and far from other heat-generating equipment, such as amplifiers.
The main ventilation ports are in the sides of the chassis. To operate properly, they should be
kept clear of other components (cables, etc.). When several AMIX mixers are located to-
gether, the amount of heat generated may be difficult to dissipate if the units are stacked
directly on each other. Ensure adequate ventilation is provided on the sides, ambient air
temperature does not exceed 72 degrees F, and an open rack space is left above and below
the units.
1.2 Maintenance Guidelines
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To minimize hum in the system, avoid placing cables near EMF-producing devices such as
electrical motors, fluorescent lights, AC power lines, and SCR dimmers.
Keep the mixer and other equipment clean and free of dust by occasionally wiping with a soft,
damp cloth.
Protect the mixer from electrical damage by disconnecting it from the power source whenever
it will be unused for a week or longer.
All AMIX mixers may be linked together serially (“daisy chained”) in one of two ways. The
simplest and most flexible method is by using the Intelix AMIX-LINK module. If the
application does not require the use of the AMIX-LINK (e.g., simple linking of two mixers),
the mixers may be daisy chained using interconnect cables. For more information, please refer
to sections 9 and 10.
1. Check mixer for shipping damage.
2. Turn both mixer and amplifier volume controls to zero.
3. Connect inputs and set the input pad switch for each channel to the appropriate level (either
mic or line). Set all unused channels to line level.
4. Connect output and set the output pad switch at the appropriate (either mic or line) level.
5. Set low cut filter switch “on” for all active channels.
1.3 Quick Start for the AMIX Mixer
1. Connect mixer’s AC power supply.
2. Power up mixer and amplifier.
3. Enable automatic mixing by pushing the AMIX engage button to the “in” position.
4. For basic operation ensure that all DIP switches (except switch 8) are down.
Attach DC control points and audio bus connections to the DB25 connector on the rear panel
for direct out; insert patching to enable remote volume control and mute control.
1.3.1 Unpack and connect
1.3.2 Power and set up
1.3.3 Fine tuning
Adjust the gain screw on the back of the mixer for each individual channel so that the clip/
gate-on LED is steady on at “normal” voice level. Make sure to adjust the individual channel
gains so that each mic is “isolated” (only one comes on at a time).
Adjust attenuation time and amount pots on the AMIX if desired (factory settings are one
second and dB respectively).
8
1.3.4 Optional: special features activation
1.3.5 Linking multiple mixers
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2.0 Panel Descriptions
Channel Volume Knob (four on AMIX 4; eight on AMIX 8): controls volume of
channel input.
Signal Present LED (Green): if lit, indicates at least a -10 dB input signal.
Signal Clip/Gate On LED (Red): if lit, indicates a +18 dB or greater input signal (pos-
sible signal distortion). If automix is enabled, LED indicates channel on status.
Low Cut Switch: helps eliminate low frequency noise (rumble, etc.).
Aphex®Aural Exciter®Switch: improves quality of output signal by adding
supplementary harmonic information.
Output Limiter Switch: eliminates clipping distortion of output by controlling dynamic
range.
LED Bar Graph Output Meter: displays output signal level in decibels, ranging from
-18 (green) to +12 (red) dB.
Master Output Volume Knob: controls output signal level.
Power Indicator LED (red): displays powered state. Lit when power is on.
Power Switch Button: push to power unit (“in” position). Push to power down unit
(“out” position).
2.1 Mixer Front Panel (AMIX-8 shown)
8
Low
Cut
1
23
4 5 6
7
8
Master
Master
Pwr
Aural Exciter
Aural Exciter
Limit
Low
Cut
Low
Cut
Low
Cut
Low
Cut
Low
Cut
Low
Cut
Low
Cut
-18
-12
-6
-3
0
+3
+6
+12
Stat Rst Select 12345678 Time Atten Engage
Automate the mix
1
2b 3
2a 4 6
9
75
2a
2b
4
3
5
6
7
8
9
1
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2.2 Mixer Front Panel Access Window
Status LED (Green): if lit, AMIX is operating in linked mode; i.e., at least two mixers
are connected together and their switches are correctly configured.
Reset Button: restarts AMIX software without powering-down the whole mixer.
Resetting causes the clip (red) LEDs to display a pattern which indicates software ver-
sion number (see section 3.8).
Select Button: used to exclude individual channels from automix.
DIP Switches 1-8
Switch 1: selects link mode control configuration (up = master, down = slave)
Switch 2: selects “last mic on” function (up = last mic on)
Switch 3: selects “first-come, first-serve” function (up = first come, first serve)
Switch 4: selects mixer link mode (up = unlink, down = link)
Switch 5: selects escape mode (up=escape mode, down = no escape mode)
Switches 6,7: unused
Switch 8: controls reset mode--up toggles reset to factory defaults (full on),
down toggles preset on reset (preset determined by RS232 command Preset on
Reset). If no preset is defined, then reset uses preset 0 (live crosspoints). Recom-
mended for users of RS232 control. Full on reset is limited by front panel con-
trols.
Hold Time Potentiometer: controls the amount of time (ranging from 13 milliseconds
to 1.7 sec.) that an open mic will stay on after there is no direct sound input to it.
Off-Attenuation Potentiometer: controls the amount (from 0 to ∞dB) by which the
level of an open mic is reduced when it is not gated on.
AMIX Enable/Disable LED (Red): indicates AMIX module’s functional state. Lit when
AMIX is enabled.
Enable/Disable Button: push (“in” position) to enable AMIX functions. Push (“out”
position) to disable.
1 2 543 6 7 8
1
2
3
4
5
7
6
8
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