Crown IQ-MC4 Reference Manual Download Page 1 | Manualshive

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134505-3

3/04

© 2004 by Crown Audio, Inc., P.O. Box 1000, Elkhart, IN 46515-1000 U.S.A.
Telephone: 574-294-8000. Fax: 574-294-8329. Trademark Notice: IQ2, SmartAmp
and PIP are trademarks. Crown and IQ System are registered trademarks of Crown
International. Other trademarks are the property of their respective owners.

Obtaining Other Language Versions:

To obtain information in another language about the use of this product, please
contact your local Crown Distributor. If you need assistance locating your local
distributor, please contact Crown at 574-294-8200.

Note:

The information provided in this manual was

deemed accurate as of the publication date. How-
ever, updates to this information may have occurred.
To obtain the latest version of this manual, please
visit the Crown website at www.crownaudio.com.

Printed on

Printed on

Printed on

Printed on

Printed on

recycled paper.

recycled paper.

recycled paper.

recycled paper.

recycled paper.

IQ-MC8 & IQ-MC4

- MC

Modules

1
2
3
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»

Summary of Contents for IQ-MC4

Page 1: ...anguage about the use of this product please contact your local Crown Distributor If you need assistance locating your local distributor please contact Crown at 574 294 8200 Note The information provided in this manual was deemed accurate as of the publication date How ever updates to this information may have occurred To obtain the latest version of this manual please visit the Crown website at w...

Page 2: ...mful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the...

Page 3: ...Electromagnetic Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity EN 61000 4 2 1995 Electrostatic Discharge Immunity Environment E2 Criteria B 4k V Contact 8k V Air Discharge EN 61000 4 3 1996 Radiated Radio Frequency Electromagnetic Immunity Environment E2 criteria A EN 61000 4 4 1995 Electrical Fas...

Page 4: ...t Signal Level Monitor 13 4 3 4 Output Signal Level Monitor 13 4 3 5 Thermal Headroom Level Monitor 13 4 3 6 Ready Standby Control 14 4 3 7 Signal Mute 14 4 3 8 Polarity Inverter 14 4 3 9 Input Signal Attenuator 14 4 3 10 Ghost Faders 14 4 3 11 Amp Information 14 4 3 12 Amp Mode 14 4 3 13 Error Reporting 14 4 4 Signal Processing 15 4 4 1 Input Signal Compressor Limiter 15 4 4 2 Peak Voltage Limite...

Page 5: ... third parties to de velopcustomsoftwareobjectstocon trol and monitor IQ2 compatible com ponents like the IQ MC module Each IQ MC module includes an IQ address switch allowing the unit to have a unique address on the IQ Bus It is powered by the amplifier and includes a memory backup feature that enables the amplifier to resume operation with all of its settings intact after a power outage We stron...

Page 6: ...AUX IQ ADDRESS LISTEN BUS PRESET OUT IN DATA 1 2 4 8 16 32 64 128 IQ Bus Output Connector IQ Bus Input Connector AUX Input Output and Listen Bus Connector Reset Preset Switch Preset Indicator Data Indicator IQ Address Switch S1 Figure 2 1 IQ MC8 Controls Connectors and Indicators ...

Page 7: ...e address 1 4 8 64 77 A convenient series of IQ address tables are included in Section 6 The tables show the switch settings for all 250 addresses No two IQ components of the same typewhichareconnectedtothesame IQ Bus can have the same address Suppose for example an IQ System has two IQ Bus loops 1 and 2 and this IQ MC module is to be installed into loop 1 and given an address of 77 No other IQ MC...

Page 8: ...n nectors used for IQ Bus wiring on IQ components TheseincludeDINcon nectors screw terminal plugs and RJ 45 connectors The IQ MC uses RJ 45 connectors that accept stan dard RJ 45 plugs like the one shown in Figure 3 6 allowing the use of in dustry standard straight thru type network cables The right RJ 45 con nectorisusedforinputandtheleftRJ 45 connector is used for daisy output Figure 3 2 Standar...

Page 9: ...e Manual IQ MC Modules ThefollowingexamplesshowhowtoconnecttheMC IQtootherIQcomponents Figure 3 3 RJ 45 Output to Barrier Block Input Figure 3 5 RJ 45 Input to Barrier Block Output Figure 3 4 RJ 45 Output to Din Input ...

Page 10: ...s 3 3 Adjust System Levels Adjust attenuator levels both on the amplifier and on the IQ MC module Figure 3 6 RJ 45 Input to Din Output Figure 3 7 RJ 45 Output to RJ 45 Intput control panels within your IQ soft ware for optimum system gain ...

Page 11: ... interface to the specified IQ component an IQ2 compatible interface is required Please con tact your Crown representative or Crown s Technical Support Group if you are unfamiliar with IQ software 4 1 Hardware 4 1 1 Data Signal Presence Indicator An amber Data Signal Presence Indi cator DATA is provided on the IQ MC connector panel as well as the front of the amplifier It flashes when evercommands...

Page 12: ...olled and monitored Two or more IQ com ponents of the same type should NEVER have the same address on the same IQ Bus loop 4 2 2 Reset Preset Switch A recessed reset preset switch ac cessible from outside the IQ MC panel performs two functions First it enables the IQ MC module to be re stored to factory default settings and second allows the user to recall any of 10 presets A straightened paper cl...

Page 13: ...evel Monitor Theinputsignallevelofeachchannel can be monitored This monitor fea ture has a range from 20 dBu to 40 dBu in dB steps 4 3 4 Output Signal Level Monitor The output signal level of each chan nel of the amplifier can be monitored This monitor feature has a range from 0 dB to 40 dB where 0 dB is refer enced to the rated output voltage of the amplifier model The IQ MC module features scale...

Page 14: ...sition of the Dual Bridge mode switches The position of the back panel attenuators However the Dual Bridge mode of the amplifier cannot be controlled via software 4 3 13 Error Reporting The IQ MC module can report six types of errors Clip Thermal Fault Load Dual Bridge mode switch set ting has been changed Volume at tenuator setting has been changed You can route error reports for each condition a...

Page 15: ...ttothemoduleandcorresponds to the level shown on an input meter The compressor is feed forward meaning that the level detection point is located before the gain con trol stage The range is from 16 dBu to 40 dBu Attack Time Sets the attack time of the compressor The attack time is defined as the time it takes the com pressor to attenuate the input signal by 10 dB The range is from 1 milli second to...

Page 16: ...gh Limit Sets the upper bound above which the system will report a high error status Low Limit Sets the lower bound below which the system will report a low error status Nominal Load Impedance Setsthe expected average impedance for the connected load This value deter mines the output signal level required for test This parameter is also used by the average power limiter to deter minetheexpectedpow...

Page 17: ...operating at a BAUD rate of 38 4 K The loop must be unbroken to function properly If the system includes an IQ INT 3 interface it can accept eight different IQ Bus loops or zones Dividing the sound system into different zones each with its own IQ Bus loop can have several advantages The fol lowing list contrasts those advan tages with those of a single loop Multiloop Advantages A break in communic...

Page 18: ... more The most significant characteris tic of the wire is its capacitance Lower capacitance allows longer loops Unshielded wire usually has less capacitance Never use the ground wire in a mic snake line It may some times be convenient to run IQ Bus data signals to and from stage monitor amplifiers along unused wire pairs in a mic snake Do not use the ground wire which is normally connected to pin ...

Page 19: ... smart switch mosfet protects against shorts see Figure 5 1 There are many possible uses for the AUX output For example it can be used to turn on auxiliary cooling fans To do this the AUX connector might be used to close a relay The relay would then turn the fans on or off This is shown in Figure 5 2 15 VDC internal control logic SMART MOSFET Figure 5 1 The Internal AUX Circuit Figure 5 2 A Sample...

Page 20: ...e IQ Bus where a host computer or controller can act upon it A signal less than 1 6 VDC is interpreted as a logic low 5 3 Listen Bus Use the diagram in Figure 5 3 to con nectanaudiomonitoringsystem such as a headphone preamp to the IQ MC Listen Bus Figure 5 4 demonstrates how mul tiple amplifiers can be monitored using the Listen Bus Crown s IQ for Windows software allows you to se lect the amplif...

Page 21: ...y 20 30 mA of average amplifier output currentforadequatesupervision This allows typically low average output power levels of less than watt with most loads The maximum load im pedance for reliable system perfor mance is limited to about 50 ohms Higherimpedancescanbemeasured but may require higher amplifier out put levels for reliable operation Most amplifier load systems can be configured and sup...

Page 22: ...vel it is not uncomfortable An 8 ohm example 30 mA into 8 ohms 0 007watts 8 ohm driver sensitivity 100dB for 1W 1 meter 0 007W 1W 20dB Required SPL for supervision test is 100dB 20dB 80dB SPL 1 meter 5 5 1 Typical Load Character istics to Know and Understand It is well known that the typical loud speaker impedance is not the same for all frequencies This variance is due to the effect of electrical...

Page 23: ...n modi fied by the user Memory Backup 8 Kbyte EEPROM for backup of run time parameters presets and program storage Ca pable of 80 000 writes minimum If address 0 is selected the MC IQ will operate in stand alone mode In this mode the Crown bus port is deactivated IQ Bus Data Communication Protection If communication is lost the unit will continue to function with the last commands received Data Ra...

Page 24: ...a stand alone mode where it is invisible to the IQ System and acts like a dumb balancedaudioinput Do not use an address number higher than 250 Addresses above 250 are reserved for special system use Remember No two IQ components ofthesametypewhichareconnected to the same IQ Bus loop can have the same address To use the IQ address tables simply find the address you want and set the IQ address switc...

Page 25: ...Page 25 Reference Manual IQ MC Modules Figure 7 1 IQ Address Switch S1 Settings from 0 through 83 ...

Page 26: ...Page 26 Reference Manual IQ MC Modules Figure 7 1 IQ Address Switch S1 Settings from 84 through 167 ...

Page 27: ...Page 27 Reference Manual IQ MC Modules Figure 7 1 IQ Address Switch S1 Settings from 168 through 250 ...

Page 28: ...unit s shipping pack Do not send the service information form separately 2 To ensure the safe transportation of your unit to the factory ship it in an original factory packing con tainer If you don t have one call or write Crown s Parts Department With the exception of polyure thane or wooden crates any other packing material will not be suffi cient to withstand the stress of shipping Do not use l...

Page 29: ... at our authorized service center or our factory All expenses in remedying the defect including surface shipping costs in theUnitedStates willbebornebyus Youmustbeartheexpenseofshippingtheproduct between any foreign country and the port of entry in the United States and all taxes duties and other customs fees for such foreign shipments HOW TO OBTAIN WARRANTY SERVICE You must notify us of your need...

Page 30: ...nterest insurance closing costs and other finance charges less a reasonable depreciation on the product from the date of original purchase Warranty work can only be performed at our authorized service centers We will remedy the defect and ship the product from the service center within a reasonable time after receipt of the defective product at our authorized service center HOW TO OBTAIN WARRANTY ...

Page 31: ...__________________________________________ __________________________________________________________________________________ ______________________________________________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...

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