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*AMB-5 / *SMX-6
DATA ENABLE
DATA ENABLE
IQ Mixer/Multiplexers with Automatic Signal Processing
© 1999 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone:
219-294-8000. The IQ–AMB-5 and IQ–SMX-6 are produced by Crown International, Inc. Trademark Notice:
™ ® ® ®, ®
IQ2 is a trademark and Crown , IQ System , Com-Tech and PZM are registered trademarks of Crown
International, Inc. Other trademarks are the property of their respective owners.
Printed on
recycle
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3 YEAR THREE YEAR FULL WARRANTY WORLDWIDE NORTH AMERICA SUMMARY OF WARRANTY SUMMARY OF WARRANTY The Crown Audio Division of Crown International, Inc., 1718 West The Crown Audio Division of Crown International, Inc., 1718 West Mishawaka Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of 1 each NEW C
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AMB-5 / SMX-6 IQ Mixer/Multiplexer Important Safety Instructions 1) Read these instructions. 2) Keep these instructions. 3) Heed all warnings. 4) Follow all instructions. 5) Do not use this apparatus near water. 6) Clean only with a dry cloth. 7) Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat. 9) Do not defeat the safety purp
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AMB-5 / SMX-6 IQ Mixer/Multiplexer The information furnished in this manual does not include all of the details of design, production, or variations of the equipment. Nor does it cover every possible situation which may arise during installation, operation or maintenance. If you need special assistance beyond the scope of this manual, please contact our Technical Support Group. Crown Audio Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A. Phone: 800-342-
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AMB-5 / SMX-6 IQ Mixer/Multiplexer Quick Install Procedure This procedure is provided for those who are already familiar with Crown’s ® IQ System and who would like to install the mixer/multiplexer in the shortest time possible. Less experienced installers or those wishing a full explanation of the installation procedure are encouraged to go to Section 3 where the full installation procedure is described. Prepare the mixer/multiplexer: 1 Set the IQ address switch (Figure 3.3) on the mixer/multi
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AMB-5 / SMX-6 IQ Mixer/Multiplexer CONTENTS Quick Install Procedure ................................................................. 5 1 Welcome ......................................................................................... 8 1.1 Unpacking .............................................................................. 8 2 Controls, Connectors & Indicators ................................................ 9 3 Hardware Installation .......................................................
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 5.3 Auxiliary Port ......................................................................... 20 6 IQ Audio In Depth ......................................................................... 23 6.1 A Closer Look at Audio Signal Wiring ........................................ 23 6.1.1 Input ............................................................................... 23 6.1.2 IQ–AMB-5 Ambient Sensing Input ................................... 24 6.1.3 Ouput ...
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AMB-5 / SMX-6 IQ Mixer/Multiplexer DSPI ENABLE DSPI ENABLE Figure 1.1 The IQ–AMB-5 and IQ–SMX-6 1 Welcome ® The IQ–AMB-5 has the same functions as an IQ–SMX- Thank you for purchasing a Crown IQ mixer/multi- 6 plus it has the ability to sense ambient sound level plexer. IQ mixer/multiplexers are intelligent mixers with and automatically adjust its output level accordingly. In special signal routing capabilities. Their intelligence this way it serves as the ultimate automatic level con- stems f
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 2 Controls, Connectors & Indicators Figure 2.1 IQ Mixer / Multiplexer Controls, Connectors & Indicators IQ–AMB-5 / IQ–SMX-6 Reference Manual Page 9
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AMB-5 / SMX-6 IQ Mixer/Multiplexer RS232 DSPI ENABLE DSPI ENABLE ODEP ENABLE ODEP ENABLE IOC IOC SPI POWER SPI POWER CH1 CH2 OFF CH1 CH2 OFF ODEP ENABLE ODEP ENABLE IOC IOC POWER POWER SPI SPI CH1 CH2 CH1 CH2 OFF OFF ODEP ENABLE ODEP ENABLE IOC IOC POWER POWER SPI SPI CH1 CH2 CH1 CH2 OFF OFF Figure 3.1 An IQ System with a Host Computer and Two Mixer/Multiplexers 3 Hardware Installation The installation of an IQ mixer/multiplexer consists of How the mixer/multiplexer will be used will determine
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AMB-5 / SMX-6 IQ Mixer/Multiplexer Use the highest baud rate possible. IQ mixer/ One of the advantages of connecting directly to a host multiplexers can be set as high as 19.2 K baud. computer is that a separate IQ interface (IQ–INT-II) is not required. If you plan to configure the unit while it is If the host computer fails to communicate with the connected to the Crown Bus, skip ahead to Section unit and the communication standard and pa- 3.2. rameters are set correctly, try reducing the
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AMB-5 / SMX-6 IQ Mixer/Multiplexer Crown Bus loops, 1 and 2, and an IQ–SMX-6 is to be 3.2.2 Connect the mixer/multiplexer to the IQ System installed into loop 1 and given an address of 114. No via the Crown Bus other IQ–SMX-6 can be given the same address in The IQ components in a Crown Bus loop are wired loop 1. However, an IQ–SMX-6 in loop 2 can have the sequentially. The loop begins and ends with the IQ same address. interface. The output of one IQ component “loops” to the input of the next
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 3 /16 in (0.48 cm) Figure 3.4 Four-Terminal Removable Barrier Block Plug The following examples show how to connect the Figure 3.7 Crown Bus Wiring for RJ-45 Input mixer/multiplexer to other IQ components on the Crown Bus: 4-pin DIN Output 4-pin Removable Barrier Mixer/Multiplexer 1 Mixer/Multiplexer 2 Block (Mixer/Multiplexer) 1 4 1 2 34 1 2 34 1 2 34 Cable connectors are numbered as they appear from the front. 2 3 Cable connectors are numbered as they appear
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 3.3 Connect the Audio Wiring (Step 3) 3.4 Connect Auxiliary Devices (Step 4) IQ mixer/multiplexers have 6 mic/line inputs and 2 Connect any external circuits you plan to use to stack inputs (Input 6 of the IQ–AMB-5 is dedicated for control the AUX input and/or monitor the AUX output ambient sensing). Two audio channels feed two main of the mixer/multiplexer. See section 5.2 for and two auxiliary bus outputs. Three-terminal remov- information on the operation o
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 4.1.3 Enable Indicator 4 Operation The front panel Enable indicator lights up to show The IQ–AMB-5 and IQ–SMX-6 sensing mixer/multi- that the unit is plugged in and AC power is being plexers are IQ components that can be controlled supplied. and monitored from a remote location via an IQ System. In addition to basic mixing functions, the 4.1.4 DATA Indicator IQ–AMB-5 and IQ–SMX-6 sensing mixer/multiplex- The front panel DATA indicator lights up to show that er
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AMB-5 / SMX-6 IQ Mixer/Multiplexer output channel) via RCA pin jacks. Each input en- affect VCA gain in real time. Gain may also be ma- ters the mix of the respective output channel at unity nipulated in real time from alternate third-party con- gain, and without manual or computer input control. trol systems or devices. In manual mode, once VCA These stack inputs allow you to multiply the number gains are set via the PC (or control device) the of audio inputs by stacking 2, 3, or more units t
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AMB-5 / SMX-6 IQ Mixer/Multiplexer 1 +25 dB in /2-dB steps. • Compression Ratio: the amount of compres- sion that is applied for every step over the Gate Threshold: the input level above which Threshold. Choices are 1:1, 2:1, 4:1, 8:1, 16:1, the gate will “open” and below which the gate 32:1, infinity:1. will “close.” Control range is from –100 to +25 1 dB in /2-dB steps. • Release Time: determines how long it takes for the gain to return to normal once the level • Low Set: the gain
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AMB-5 / SMX-6 IQ Mixer/Multiplexer If the level audibly drops each time the gate 4.2.11 Gate Count opens, try a lower value for Idle Gain. Idle gain The Gate Count function keeps track of how many should never be set to a value greater than Max gates are open at a time, and provides feedback 1 Gain. Control range is from –100 to +25 in /2- control when a large number of inputs are open. dB steps. The Gate function must be on for the Gate Count to operate. There are four parameters which control
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AMB-5 / SMX-6 IQ Mixer/Multiplexer increase in the ambient signal level above the the Crown Local Net nor the IQ–SMX-6 units Threshold setting. A 4:1 Expansion Ratio set- will function properly if more than one unit is se- ting will raise the output gain 1 dB for every 4 lected as a master. dB that the ambient signal increases. Choices • External Functions On/Off: setting this control are 1:1, 1.5:1, 2:1, 2.5:1, 3:1, 4:1, and 5:1. to ON allows the IQ–SMX-6 to participate in the • Threshold: d
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AMB-5 / SMX-6 IQ Mixer/Multiplexer drive the two current-summing mix buses. The stack 5.2.3 D/A Converter inputs also feed into the mix buses. The VCA's derive To set channel gain levels, a digital-to-analog con- their control voltages from a multiplexer circuit driven verter continuously converts all gain settings to control from the microprocessor. The microprocessor uses voltages. An analog de-multiplexer sends the appro- onboard algos or commands from a host computer to priate control volta
