*PIP-USP2 An IQ System® Programmable Input Processor with DSP and Load Supervision for Crown® PIP2-Compatible Amplifiers © 2002 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, PIP, and PIP2 are trademarks, and Com-Tech, Crown , IOC, IQ System, Macro-Tech and ODEP are registered trademarks of Crown International. Other trademarks are the property of their respective owners.
IQ-PIP-USP2 IQ-PIP-USP2 Quick Install Procedure 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 Crown Technical Support. Crown Technical Support 1718 W. Mishawaka Rd., Elkhart, Indiana 46517 U.S.A.
IQ-PIP-USP2 CONTENTS 1 Welcome ................................................... 6 1.1 Unpacking ........................................ 7 2 Controls, Connectors & Indicators ......... 8 3 Installation ................................................. 9 3.1 Prepare the IQ-PIP-USP2 ............... 9 3.2 Prepare the Amplifier .................... 10 3.3 Install the IQ-PIP-USP2 into the Amplifier .............................................. 10 3.4 Install the Wiring ......................... 11 3.
IQ-PIP-USP2 IQ-PIP-USP2 1.1 Unpacking The unit is shipped in a protective antistatic bag. Figure 1.1 IQ-PIP-USP2 Front Panel 1 Welcome The IQ-PIP-USP2 is a PIP (Programmable Input Processor) input module for Crown PIP2-compatible amplifiers.* It connects the amplifier to the Crown Bus of an IQ System, allowing the amplifier to be controlled and monitored via IQ. The IQ-PIP-USP2 is an IQ2™-series component.
IQ-PIP-USP2 2 Controls, Connectors & Indicators IQ-PIP-USP2 3 Installation Before beginning, please carefully note: CAUTION: STATIC ELECTRICITY MAY DAMAGE THE IQ-PIP-USP2 MODULE. Use caution when handling the unit. Carefully ground yourself BEFORE touching the IQ-PIPUSP2 module. Avoid unnecessarily touching the components or solder pads on the circuit boards. 3.1 Prepare the IQ-PIPUSP2 1. Set the IQ address switch S1.
IQ-PIP-USP2 A valid IQ address is any number from 1 to 250. Do not use a number higher than 250 since they are reserved for special use. An address of “0” (zero) should only be used for “stand alone” mode. Setting the address switch to “0” disables the IQ bus port. 2. Set the scaling switch S3. Input and output scaling is adjusted via this four-segment switch.
IQ-PIP-USP2 IQ-PIP-USP2 uses RJ-45 connectors that accept standard RJ-45 plugs like the one shown in Figure 3.6, allowing the use of industry-standard straightthru type network cables. The top RJ-45 connector is used for input/ output and the bottom RJ-45 connector is used for daisy output. Figure 3.8 RJ-45 Output to Din Input. Figure 3.6 RJ-45 Mating Plug Figure 3.5 Standard Crown Bus Wiring “Loops” from the Output to the Input of each IQ Component (for Hub-Style Crown Bus wiring, see Section 5.2.1).
IQ-PIP-USP2 IQ-PIP-USP2 4 Operation Figure 3.11 RJ-45 Output to RJ-45 Input. 11. Connect the audio signal wiring to the IQ-PIP-USP2. Two female XLR connectors, one for each channel, are provided for signal input. Two male XLR connectors, one for each channel, are provided for audio daisy chaining. See Section 5.1 for more information on audio wiring. 12. Reconnect amplifier to the AC receptacle. 3.5 Adjust System Levels 13.
IQ-PIP-USP2 USP2. 4.1.4 Crown Bus Daisy Output Connector An RJ-45 connector is provided for normal daisy wiring output to the next device on the loop in the Crown Bus. 4.1.5 Balanced Audio Inputs A female XLR connector is provided for balanced audio input to each channel of the amplifier. Do not use the Ch.2 input if the amplifier is configured in either Bridge or Parallel-Mono mode. 4.1.6 Balanced Daisy Outputs A male XLR connector is provided for balanced audio daisy chaining for each channel.
IQ-PIP-USP2 4.3 Amplifier Control and Monitoring The following IQ-PIP-USP2 features are accessed via IQ for Windows software. 4.3.1 User Presets The parameters for all functions can be saved as presets. A total of ten user presets can be stored in the IQPIP-USP2’s flash memory. Preset names are stored on the PIP 4.3.2 IOC Event Monitor The Input/Output Comparator (IOC®) of each channel of the amplifier can be monitored by the IQ System.
IQ-PIP-USP2 put level meters for calibrated output indication. 4.3.15 Error Reporting Four different error conditions can be detected by the IQ-PIP-USP2. They include IOC, Thermal, Fault, and Load. Reporting for each condition can be individually configured for output to the AUX port, the IQ for Windows software, or both. If you choose system software notification, you will receive notice of the fault condition via the IQ System.
IQ-PIP-USP2 On/Off: Turns this function on or off. Threshold: Sets the threshold, in dB, above which the compressor acts. The level is measured at the input to the PIP and corresponds to the level shown on an input meter. The compressor is “feed-forward,” meaning that the level detection point is located before the gain control stage. The range is from +16 dBu to –40 dBu. Attack Time: Sets the attack time of the compressor.
IQ-PIP-USP2 Q: Sets the width, slope and gain of the filter. The range is 0.1 to 30. The lower the Q, the wider the filter, the lower the gain and the better the transient response and visa versa. Gain examples: A Q of 2 will result in 6 dB of gain at the center frequency and a Q of 4 will result in 12 dB of gain. Description: This filter boosts or cuts low frequencies by the specified amount of gain. When used to cut rather than boost, the filter acts like a high-pass filter rather than a lowpass filter.
IQ-PIP-USP2 4.4.11 Output Trim Controls An output trim control is provided for each channel to adjust the output gain after processing, allowing for “make-up” gain to compensate for losses due to crossovers, etc. Range is +12 dB to –80 dB in ½-dB steps. 4.4.12 Tie Switch The Tie switch connects all active compressors and limiters together so that any limiting/compression affects the signal on both channels, such as would typically be desired when processing stereo signals. 4.
IQ-PIP-USP2 5 IQ Audio In Depth This section provides additional information about Crown’s IQ System with special guides to aid in the installation and use of the IQ-PIPUSP2. For more information about any of these topics, contact Crown Technical Support. 5.1 A Closer Look at Audio Signal Wiring Balanced XLR connectors are provided for audio input connection. The audio cables should be wired in one of the following manners (see Figure 5.1): We strongly recommend that balanced wiring be used if possible.
IQ-PIP-USP2 prevent the IQ data signal from transmitting to nearby audio wiring. Second, it helps prevent outside RF from interfering with the data signal. However, in most cases interference is not a problem and, since unshielded wire has lower capacitance, it is a better choice. • Minimize the total capacitance of each Crown Bus loop. The total capacitance should be less than 30 nanofarads. Allow for approximately 60 picofarads for each IQ component in a loop.
IQ-PIP-USP2 IQ-PIP-USP2 5.4 Listen Bus Use the diagram in Figure 5.6 to connect an audio monitoring system, such as a headphone preamp, to the IQ-PIP-USP2 Listen Bus. Amp 1 Amp 2 Figure 5.6 Listen Bus Connection Figure 5.7 Multiple -Amp Listen Bus Configuration Figure 5.7 demonstrates how multiple amplifiers can be monitored using the Listen Bus. Crown’s IQ for Windows software allows you to select the amplifier and channel you wish to monitor. Figure 5.4 The Internal AUX Circuit 5.
IQ-PIP-USP2 5.6 Q-Factor Calculation Many of the DSP filters on the IQPIP-USP2 feature adjustable Q-factor, which is a measure of the filter’s selectivity or sharpness. Q-factor is adjustable in fractions of an octave on the IQ-PIP-USP2. in octaves. The table relates the Qfactor to bandwidth in octaves according to the equation: Use the table in Figure 5.9 to determine Q-factor for a given bandwidth where K is the number of equal divisions per octave.
IQ-PIP-USP2 The following example calculates the SPL necessary for supervision of a typical 8-ohm system. While the resulting 80-dB SPL @ 1 meter is definitely above conversation level, 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 5.7.
IQ-PIP-USP2 7 IQ Address Tables Audio Please note: The audio specifications are referenced to 0.775 V (0 dBu). Measurements were made at the output of the IQ-PIP-USP2 module, itself. Digital Signal Processor (DSP): 60 MHz Motorola 56002 DSP processor provides 30 million operations per second. Analog to Digital Conversion (ADC): 24-bit, 48 kHz sample rate, Delta-Sigma converter. Digital to Analog Conversion (DAC): 24-bit, 48 kHz sample rate, Delta-Sigma converter.
IQ-PIP-USP2 Figure 7.1 IQ Address Switch (S1) Settings from 0 through 83 Page 40 IQ-PIP-USP2 Reference Manual IQ-PIP-USP2 Figure 7.
IQ-PIP-USP2 IQ-PIP-USP2 8 Using the IQ-PIP-USP2 with the IQ-PIP-USP2 Adapter The IQ-PIP-USP2 Adapter allows many older Crown PIP-compatible amplifiers (i.e., Macro-Tech® 00 Series, Com-Tech® 00 Series, and Studio Reference Series amplifiers) to access the power and versatility of the Crown IQ-PIP-USP2 module.
IQ-PIP-USP2 Figure 8.1 "General" Tab showing Identification of IQ-PIP-USP2 Adapter IQ-PIP-USP2 Figure 8.3 “Peak Voltage Limiter” Block Disabled on “Signal Path” Tab Peak Voltage and Average Power Voltage Limiter Peak Voltage and Average Power Limiters are not available. Figure 8.2 “Signal Path” Tab showing Peak Voltage and Average Power Limiters Disabled Page 44 IQ-PIP-USP2 Reference Manual Figure 8.
IQ-PIP-USP2 IQ-PIP-USP2 Fault and Load Error Reporting Fault and Load Error Reporting are not available. Figure 8.5 “Error Reporting” Tab showing Fault and Load Error Reporting Disabled Load Supervision Load Supervision is not available. Figure 8.
IQ-PIP-USP2 8 Service and the defective unit to the Crown factory. 8.1 Worldwide Service For warranty service, we will pay for ground shipping both ways in the United States. Contact Crown Factory Service to obtain prepaid shipping labels prior to sending the unit. Or, if you prefer, you may prepay the cost of shipping, and Crown will reimburse you. Send copies of the shipping receipts to Crown to receive reimbursement. Service may be obtained from an authorized service center.
3 YEAR UNITED STATES & CANADA WORLDWIDE EXCEPT USA & CANADA SUMMARY OF WARRANTY Crown International, 1718 West Mishawaka Road, Elkhart, Indiana 46517-4095 U.S.A. warrants to you, the ORIGINAL PURCHASER and ANY SUBSEQUENT OWNER of each NEW Crown product, for a period of three (3) years from the date of purchase by the original purchaser (the “warranty period”) that the new Crown product is free of defects in materials and workmanship.
Crown Factory Service Information Shipping Address: Crown Customer Service, 1718 W. Mishawaka Rd., Elkhart, IN U.S.A.
