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®
An IQ System Programmable Input Processor with DSP
® ®
for Crown P.I.P. -compatible Power Amplifiers
©1999 by Crown International, Inc., P.O. Box 1000, Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-
™
294-8000. The IQ–P.I.P.–DSP is produced by Crown International, Inc. Trademark Notice: MPX-6 , SMX-
™ ™ ™ ® ® ® ® ®
6 , SmartAmp and Macro Reference are trademarks and Amcron , Crown , IQ System , IOC , ODEP ,
® ® ®
Macro-Tech , Com-Tech and P.I.P. are registered trademarks of Crown Interna
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3 YEAR IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 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 prod
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 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 damp cloth. 7) Do not block any of the ventilation openings. Install in accordance with the manufacturer’s instructions. 8) Do not install near any heat sources such as radia- tors, heat registers, stoves, or other apparatus that prod
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 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 Division Technical Support Group Plant 2 SW, 1718 W. Mishawaka Rd., Elkhar
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 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 IQ–P.I.P.–DSP in the shortest time possible. Less experienced installers or those wishing a full explanation of the installation procedure are encouraged to go to Section 4 where the full installation procedure is described. Prepare the IQ–P.I.P.–DSP: 1. Set the IQ address switch SW1 (Fig
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems CONTENTS Quick Install Procedure .......................................... 5 4.17 Excessive ODEP Warning ............................. 18 1 Welcome .................................................................. 7 4.18 Fault Warning ................................................ 18 1.1 Unpacking ...................................................... 7 4.19 Signal Delay.................................................. 18 2
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems Fig. 1.1 IQ–P.I.P.–DSP 1 Welcome The IQ–P.I.P.–DSP is a powerful IQ component that con- This manual will help you successfully install your unit. nects an IQ-compatible amplifier to the Crown Bus of We strongly recommend you read all the instructions, an IQ System so the amplifier can be controlled and warnings and cautions contained within. Also for your monitored. Its DSP (digital signal processing) capabili- protection, plea
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems D E IN OUT DSPI - CROWN P.I.P. DSP BUS PUSH PUSH AUDIO OUT Front View CH-2 CH-1 TIP= RING= 21 3 EXT. POWER INPUT GND DSP#.### CH-2 AUDIO IN CH-1 24 VDC / 400 mA A B B C C F G H A AVOID STATIC DAMAGE! Bottom View GROUND YOURSELF TO THE OUTER METAL COLLAR OF ONE OF THE CROWN BUS CONNECTORS. K RN1 N M JP4 JP5 RN2 CH1 CH2 L I J J K Fig. 2.1 The IQ–P.I.P.–DSP Facilities 2 Facilities A. Mounting Screws The IQ–P.I.P.–DSP is secured to
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems D. Reset Switch H. Crown Bus Output Connector A multifunction reset switch is provided to restore the A lockable 4-pin female DIN connector is used for output IQ–P.I.P.–DSP to a prior state. It can be depressed with connection to the Crown Bus. A mating Switchcraft 502 a straightened paper clip through the small hole in the series connector can be ordered from Crown (part P.I.P. panel. Press the reset switch for less than 2 sec-
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems is used to set the IQ address of the IQ–P.I.P.– 3 Installation DSP. No two IQ components of the same type Before beginning, please carefully note: which are connected to the same Crown Bus can have the same address. Suppose, for ex- CAUTION: STATIC ELECTRICITY MAY DAMAGE ample, an IQ System has two Crown Bus loops, THE IQ–P.I.P.–DSP MODULE. Use caution when 1 and 2, and this IQ–P.I.P.–DSP is to be installed handling the unit. C
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems settings for all 250 addresses. 3.4). Notice that the PIP2 input adapter should be positioned with the P.I.P . edge connector on 2. Set the jumpers JP4 and JP5. If the IQ–P.I.P.– top facing away from the amplifier. The 20 pin DSP is being installed into a PIP2-compatible or cable (A) is connected first then the 18 pin cable Macro-Tech 5000VZ amplifier, move both jumper JP4 and JP5 on the IQ circuit board to the “OUT” position (F
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems Section 3.8 for more information. loop having an IQ2-compatible IQ interface in order for the IQ System to control or monitor it. The Crown Bus is a serial communication loop designed to transmit IQ 3.5 Adjust the Levels & Scale Factors commands and data. As implemented in the IQ–P.I.P.– 13. Turn the level controls of the amplifier to their DSP, it is a 20 milliamp current loop operating at a full or maximum setting. This is req
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Optional Shield IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems than 1,000 feet (305 m)—or when required by should be connected to an IQ component with a screw high-capacitance wire. Although we recommend terminal plug. adding a repeater for loops longer than 1,000 feet, it is often possible to go 2,000 feet (610 m) or IQ–P.I.P.–DSP Output IQ Mixer more. The most significant characteristic of the OUT IN 41 wire is its capacitance. The lower the capaci- + – + – tance, the long
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems plifier (if provided). The phone jacks are wired in paral- 3.7 A Closer Look at Audio Signal Wiring lel with the output of the P.I.P. connector inside the am- Balanced 3-pin female XLR connectors are provided plifier. Any audio signal fed into the phone jacks could for audio input connection. The audio cables should feed back into the output of the IQ–P.I.P.–DSP and gen- be wired in one of the following manners: erate a distorte
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 4.4 Output Signal Level Monitor 4 Operation The output signal level of each channel of the amplifier With an IQ–P.I.P.–DSP module, your Crown amplifier can be monitored by the IQ System. This monitor can be monitored and controlled from a remote feature has a range from 0 dB to –40 dB where 0 dB is location through the use of an IQ System. This P.I.P. referenced to the rated output voltage of the amplifier ™ module features Sma
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems components in the IQ System. It is controlled by the IQ 4.8 Polarity Inverter System and it serves as a toggle to quickly enable or The polarity of the input signal of each channel can be disable many of the functions in the IQ–P.I.P.–DSP. The independently inverted by the IQ System. functions that are enabled/disabled by the Auto control are: input signal compressor/limiter, output limiter, auto 4.9 Input Signal Attenuator stan
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems output limiters are controlled by the IQ System and has 4.15 ODEP Limiter five parameters: The effects of “ODEP limiting” the drive level of the output devices (as described in Section 4.5) are very Output Limiter: Turns this function on/off. audible. To overcome this, an ODEP limiter is available Threshold: Sets the threshold, in dB, above which to proportionally limit the input audio signal as the the limiter acts. The level
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems level would indicate a sudden decrease in the load filter cells). There are seven different filter types from impedance—such as a shorted speaker cable or which to choose—all controlled by the IQ System: shorted loudspeaker. There are two parameters which Low-pass crossover filter (1st–4th order) control this feature: High-pass crossover filter (1st–4th order) ODEP Short Detect: Turns this function on/off. Parametric equalizatio
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems filter is commonly used to feed the high frequency portion of an audio signal to horns or High-Pass Equalization Filter tweeters. It can be combined with a low-pass Description: This filter combines the functions of crossover filter to create a band-pass crossover the parametric equalization filter to boost or cut filter for driving mid-range drivers. a relatively narrow frequency band with a high- Passband gain: Fixed at unity.
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IQ–P.I.P.–DSP Programmable Input Processor with DSP for IQ Systems 4.21 Memory Backup 4.26 Data Signal Presence Indicator A memory backup feature is provided which can be A Data Signal Presence Indicator (DSPI) is provided disabled, if desired. The factory default setting is on the front panel. It flashes whenever commands “enabled.” When enabled, it stores all run-time addressed to the IQ–P.I.P.–DSP are received. It can be parameters that can be controlled by the IQ software forced to stay on
