Crown 1250ND Operation Manual Download | Manualshive

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DriveCore Install Network Display Series

Power Amplifiers

Operation Manual

page 42

Thermal Indicator

If the amplifier becomes too hot for safe operation, the channel that is generating too much heat will be shut down until the temperature drops below the thermal limit.

The front-panel thermal indicator will illuminate at 80 degrees Celsius, indicating the onset of compression affecting the audio signal. The amplifier will continue to run

in this state until either the temperature is reduced to a safe operating range, or if the temperature continues to rise, the channel will shut off to protect itself above 98

degrees Celsius.

Fault

The amplifier will enter a Fault state if the amplifier senses an unsafe condition. This protection is for both internal and external faults. In addition, be sure that the load

connected to the amplifier is within 2 - 16 Ohm limit (4 - 16 Ohm Bridge Mono). If wiring is verified as correct and the fault condition persists, see Page 45 for

servicing information.

Auto Insertion High-Pass Filters

A 35 Hz high-pass filter is inserted automatically when a channel is selected for operation.

AC Under/Over Voltage Protection

If the AC line voltage drops below 10% or rises above 10% of the nominal operating voltage of the amplifier, the amplifier’s power supply turns off and the blue Power LED

flashes. The amplifier will turn back on when the AC line voltage returns to safe operating levels.

Power Breaker

The amplifier utilizes a breaker to protect from excessive AC current draw.

Fan-cooled Chassis

DCi Series amplifiers are cooled by quiet, variable speed fans. Maximum fan noise level of a DCi amplifier is 47 dBa @ 1M. The fans will pull air from the front to the rear of

the amplifier.

The following fault conditions cause the fan to turn on full speed:

•  High Frequency fault
•  DC fault
•  Short circuit fault
•  Thermal fault
•  Rail fault

After a fault, the fan will remain at full speed for at least 60sec.

Universal Switching Power Supply

The DCi Series incorporates a new switching power supply designed for extremely high efficiency and high output power. The supply includes Power Factor Correction

(PFC), a Series Resonant Converter (SRC) and accepts AC supply voltages from 100 V~ to 240 V~. Microprocessor controlled diagnostic and control capabilities both

optimize performance, and enhance long-term reliability.

Protection System

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Summary of Contents for 1250ND

Page 1: ... publication date However updates to this information may have occurred To obtain the latest version of this manual please visit the Crown website at www crownaudio com Trademark Notice Com Tech BCA Crown Crown Audio Amcron and Multi Mode are registered trademarks of Crown International DriveCore DriveCore Install IQwic PIP and PIP2 are trademarks of Crown International Other trademarks are the pr...

Page 2: ... THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE WATCH FOR THESE SYMBOLS The lightning bolt triangle is used to alert the user to the risk of electric shock The exclamation point triangle is used to alert the user to important operating or maintenance instructions IMPORTANT DriveCore Install Series amplifiers require Class 2 output wiring MAGNETIC FIELD CAUTION Do not locate ...

Page 3: ... 61000 4 2 2008 Ed 2 0 EMC Compatibility Product Family Standard for Audio Video Audio Visual and Entertainment Lighting Control Apparatus for Professional Use Part 2 Immunity EN 61000 4 3 2010 Ed 3 2 Radiated Radio Frequency Electromagnetic Immunity Environment E2 criteria A EN 61000 4 4 2007 Radiated Radio Frequency EMC Immunity Environment E2 Criteria A EN 61000 4 5 2006 Surge Immunity Criteria...

Page 4: ...eatures 7 Hardware Setup and Configuration 8 Precautions 9 Software Setup 10 Netsetter 11 Offline Online Operation 17 Software System Configuration 19 General Purpose In Out Control Port 26 Aux Port Sleep Amp Status 31 Advanced Operation 32 Signal Path 41 Protection System 42 DCi Specifications 43 Service 45 Warranty 47 Crown Audio Factory Service Information 48 Product Registration 49 Table of Co...

Page 5: ...over Input Output Delay LevelMAXTM Limiters Priority Input Router PFC Power Supply The universal PFC Power Supply offers reduced current draw and provides industry leading efficiency Monitoring and Control over TCP IP Real time Continuous Loading Monitoring Power Saving Modes Power consumption in sleep mode is approximately 1W Adjustable Auto Standby Remote Power Off Sleep mode is activated via AU...

Page 6: ...t to set up your amplifier read and observe the Important Safety Instructions found at the beginning of this manual Install the Amplifier CAUTION Before you begin make sure your amplifier is disconnected from the power source and that all the level controls are set to minimum output All DCi Network Display Series amplifiers are 3 5 in 8 9 cm high and 19 in 48 3 cm wide and 17 in 43 2cm deep See Fi...

Page 7: ...ata network only AVB connectivity is not a part of this indicator LCD Screen Shows enabled presets and DSP functions in addition to level clip and thermal information Next Prev Menu Exit Buttons Allows access to menu items from the front panel Cooling Fan Outlet Outlets for cooling air flow Do not block or cover these outlets Auxiliary Connector 3 pin plug in type connector Enables SLEEP mode and ...

Page 8: ...e This is to ensure compliance with emissions regulations See Figure 5 Hardware Setup and Configuration Figure 3 Figure 4 Figure 6 CAUTION Never connect the speaker return to the chassis of the amplifier or damage to the amplifier may result CAUTION Never use shielded cable for output wiring NOTE Custom wiring should only be performed by qualified personnel Class 2 output wiring is required Wire O...

Page 9: ...er connect the output to a power supply battery or power main Electrical shock may result 5 Tampering with the circuitry or making unauthorized circuit changes may be hazardous and invalidate all agency listings 6 Do not operate the amplifier clipping 7 Do not overdrive the mixer which will cause clipped signal to be sent to the amplifier Such signals will be reproduced with extreme accuracy and l...

Page 10: ...entical for channels 3 4 on four channel models and for channels 5 6 and 7 8 on eight channel models Each channel may be configured independently on multichannel models Software Setup Figure 7 Set Up and Configuration of the DriveCore Install Network amplifiers can be completed through HiQnet Audio ArchitectTM The amplifier should be connected to a TCP IP network via the Ethernet connection on the...

Page 11: ...l Devices Default setting All discovered devices are displayed HiQnet ID conflicts Only discovered devices with HiQnet address conflicts are displayed IP address conflicts Only discovered devices with IP address conflicts are displayed All conflicts Only discovered devices with either HiQnet address conflicts or IP address conflicts are displayed Locked Only devices in a Locked configuration Disco...

Page 12: ...ys the MAC Address es of the discovered device If more than one MAC Address is discovered for a single device HiQnet device MAC Address AVB card MAC Address etc the field is represented as a drop list You may select between the connected MAC Addresses The data in this field cannot be edited For a device connected to the same control network with two control MAC Addresses the MAC Address field will...

Page 13: ...ick the Apply Current Edits or Apply and Exit buttons Default Gateway Displays the Default Gateway of discovered device May be edited inline The device row will be ordered accordingly with the current column sort immediately on successful editing of the field The device row will remain selected If DHCP Auto IP is enabled the Default Gateway field may not be edited inline If the device is being red...

Page 14: ...ddress etc will not be able to report a HiQnet address In this instance the Random ID check box will be unavailable Status Displays the current discovery status of the device The Status field may not be edited Discovery status hierarchy is as follows Discovered If a device has a unique IP address and a unique HiQnet address this condition will be shown unless the device is access controlled When t...

Page 15: ... conditions The device had been previously discovered at least the MAC Address level Edits had been made to one or more fields The device is being rediscovered after applying current edits Since the sort order automatically updates when a field within the sorted column is updated the rediscovered device will occupy the same row on rediscovery Unless DHCP Auto IP or Random ID has been set prior to ...

Page 16: ...e of HiQnet software System Architect Performance Manager London Architect The Container Position Venue Data may not be edited inline A selected device may have its Venue Data cleared including all Building Floor and Room Venue data by pressing the Clear Container button This action takes place on applying current edits only and can be undone with the Undo Current Edits button Devices not discover...

Page 17: ...ally enables matching between all the devices in the Audio Architect venue Detach Removes the device s virtual connection from Audio Architect Editing Undo Erases the last change done reverting to the previous state Redo Re establishes the previous state Show The checked items are displayed along side the appropriate devices in the venue Device Names Rack Array Names HiQnet Addresses and IP Addres...

Page 18: ...s automatically removed from the Discovered Factory Master Panels Monitor Panels Meter Panels Level and Mute Panels Double clicking an amplifier will access the amplifier factor control panel At this point Audio Architect is in OFFLINE MODE In OFFLINE MODE amplifier changes are not made in real time and will need to be sent to the amplifiers Amplifier changes can also be sent in real time in ONLIN...

Page 19: ... Network amplifiers are capable of High Z and Low Z outputs Each individual channel is capable of Hi Z or Low Z operation To select Hi Z or Low Z operation double click on the mode button the Amplifier Mode Setting Window will open see Figure 15 Note Choosing 70Vrms or 100Vrms is an amplifier global setting and affects all output channels selected for High Z operation Figure 15 Global Channel Spec...

Page 20: ...gure 16 One input can be used to drive some or all of the amplifier outputs NOTE By cascading the inputs the corresponding input DSP functions for individual channels will be removed and only the output DSP functions will be available See Figure 17 Figure 16 Use the Y 1 2 etc check boxes to cascade channel inputs Figure 17 With the Y 1 2 box checked both output Ch 1 and Ch 2 are fed by input Ch 1 ...

Page 21: ...Mode window By selecting the bridging option only the first input channel will need to be wired See Figure 18 Low Z and High Z options are still available NOTE If the amplifier output is in bridge mono and the High Z option is selected the amplifier will produce 140Vrms or 200Vrms Software System Configuration Figure 18 Check the Bridge Mono 1 2 box to bridge the output of the amplifiers Figure 19...

Page 22: ...puts of a channel pair mono the input signal can be sent to adjacent amplifier channels OUTPUTS Maintain proper polarity on output connectors Connect the Channel 1 speaker s positive lead to amplifier Channel 1 positive terminal repeat for negative Repeat Channel 2 wiring as for Channel 1 and for any subsequent channel pairs on multichannel models Refer to Page 8 for output connector terminal assi...

Page 23: ...d 23 INPUT WIRING If using analog inputs it is only necessary to wire the odd number inputs OUTPUTS Connect the speaker across the positive terminals of each channel pair Do not use the negative terminals of the channel pair when the pair is being operated in Bridge Mono mode Figure 22 System Wiring Bridge Mode Figure 23 The bridge mono checkbox must be checked for proper operation Always route th...

Page 24: ...dged Hi Z mode Remember DCi amplifiers allow each channel Hi Z or Low Z mode of operation to be selected independently while 70V 100V selection is global Figure 24 System Wiring for 70V 100V Operation Figure 25 Radio buttons control Low Z High Z on a per channel basis 70Vrms and 100Vrms radio buttons control High Z point for the entire amplifier Always route the input and output wires in separate ...

Page 25: ...s 1 3 5 7 only Even numbered inputs are disabled when the Bridge Mono mode is active OUTPUTS Connect the speaker across the positive terminals of each channel pair Do not use the negative terminals of the channel pair when the pair is being operated in Bridge Mono mode Figure 26 System Wiring for 140V 200V Operation Figure 27 Operation mode for 140Vrms or 200Vrms Software System Configuration Alwa...

Page 26: ...e when the control port input is at the minimum end of its range Mode For the control port input the Mode field determines how the assigned parameters will be controlled For the control port output the Mode field determines the conditions under which the output status will change Off Value Available only on input and only for parameters in Direct Action mode Determines what the value of the select...

Page 27: ...input 1 or 2 Once an SV has been added its type will determine which MODE options become available If a binary SV has been assigned only the Direct Action mode is selectable and the ON VALUE and OFF VALUE parameters can be toggled as desired However if a non binary SV is added the Analog Input Mode becomes available In this mode the ON and OFF VALUE fields are unused and the HIGH LIMIT and LOW LIM...

Page 28: ... SV has been assigned and the MODE has been set any subsequent SV that is added must function in the same MODE Up to 40 SV s can be assigned to a given input An assigned state variable can be removed by highlighting and selecting Remove Assignment in the upper left hand corner General Purpose In Out Control Port Figure 30 Configuring Input 1 to control Processing Output Faders for Channels 1 2 and...

Page 29: ... Control Port output configuration options can be found directly below those for the input No parameters can be assigned to the outputs Instead there are three modes available Manual Report Errors and Report Online Status Manual mode enables direct control over the selected output In Report Errors mode the output status will change if any errors are reported to the network such as clip errors temp...

Page 30: ...fiers Operation Manual page 30 General Purpose In Out Control Port NOTE that in all modes the polarity of the binary output can be toggled under the OUTPUT POLARITY tab where Normal or Inverted can be selected Figure 31 Control Port Output Configuration ...

Page 31: ... is disabled When the connection between pins 1 and 2 is open the amplifier will revert to its last configuration and begin to output audio within 20 seconds Communication via the network will take as long as the network interface card boots If the front power button is pressed while the amp is in sleep mode the blue power indicator will blink twice Amp Status AMP STATUS can be used for basic moni...

Page 32: ...utlines setting up User Presets 1 Adjust the DSP settings as desired in the Audio Architect software 2 Save this group of settings as preset you will be prompted to name it 3 Download the preset to the DCi Network Display Series amplifier See the software Help file for details As soon as you save the setting as a preset it is sent to the amplifier Amplifier Presets and Speaker Tunings Preset 1 is ...

Page 33: ...en the mouse is hovered over the respective channel Speaker Tuning Icon Figure 32 Basic Speaker Tuning Panel Speaker Tunings Crown and JBL engineers have designed DriveCore Install DSP settings that are optimized for various JBL loudspeakers Speaker tunings can be downloaded at the following website www jblpro com An improved speaker tuning approach has been developed for the DriveCore Install Net...

Page 34: ...able from 0S to 2S 6 Band Gain adjustable from 100dB to 20dB in 0 5dB steps 7 Polarity Invert Speaker Tuning Libraries The new system uses software based Speaker Tuning Libraries Audio Architect manages these libraries within the device DLL A library can contain any number of tunings Audio Architect can manage any number of libraries The library system implemented includes Working Library The work...

Page 35: ...nto the working library This action replaces the current working library Any changes not saved to the existing working library will be lost Saving a Library Click on the File Save Speaker Tuning dialog on device main panel to save the current working library to any filename Note JBL files are write protected read only and cannot be over written Library File Locations The file location and naming c...

Page 36: ...his DSP are Configure signal flow Optimize system gain structure Configure speaker configurations set the drive levels frequency bands delays and limiting for your particular speakers Configure EQ filtering and much more See the Audio Architect Help files for more detailed information On the left of this screen is the Input and Output Signal Level Monitor explained later on this page On the right ...

Page 37: ... Audio Router Clip Indicator Peak RMS levels Output Signal Level Meter blue The measurement range is from 0 dB to 40 dB with 0 5 dB resolution The monitors are scaled so that 0 dB is referenced to the full rated output voltage of the amplifier The wider left meter is rms and the right meter is peak for each channel An output clip indicator is provided Indicators Temp Lights if the temperature of t...

Page 38: ...Up to 0 1 seconds of output delay is provided See Figure 36 Input Output Equalization These screens let you adjust channel equalization for up to 8 frequencies You can select filter type frequency gain and bandwidth in octaves or Q as set by the user preferences in Audio Architect Changes to the equalizer s frequency response can be done by typing in parameters or by click dragging the response cu...

Page 39: ...le plus crossover filters Each filter has up to 24dB of gain The following filters are available Lowpass Highpass Bessel 12dB oct 18dB oct 24dB oct 30dB oct 36dB oct 42dB oct 48dB oct Butterworth 12dB oct 18dB oct 24dB oct 30dB oct 36dB oct 42dB oct 48dB oct Linkwitz Riley 24dB oct 36dB oct 48dB oct Lowshelf Low frequency shelving EQ Highshelf High frequency shelving EQ Lowpass EQ Variable bandwid...

Page 40: ...ge which the limiter will allow from the amplifier The range is from 1 Vpk to 255 Vpk Attack Time Sets the attack time of the limiter The attack time is defined as the time it takes the limiter to attenuate the output signal by 20 dB The range is from 1 millisecond to 100 milliseconds The Instant setting attack time is instant 0 millisecond Release Time Sets the release time of the compressor The ...

Page 41: ...er mute polarity Back panel attn Input Delay 2 sec Input EQ 1 8 Xover BP gain Output EQ 1 8 Driver Delay 0 1 sec Limiters Amp Load Monitor Amp Output Processing Output fader mute polarity Back panel attn Auto Standby trim mute polarity clip detect trim mute polarity clip detect Analog Inputs Amplifier Outputs High Priority Input Med Priority Input Low Priority Input High Priority Input Med Priorit...

Page 42: ...ly when a channel is selected for operation AC Under Over Voltage Protection If the AC line voltage drops below 10 or rises above 10 of the nominal operating voltage of the amplifier the amplifier s power supply turns off and the blue Power LED flashes The amplifier will turn back on when the AC line voltage returns to safe operating levels Power Breaker The amplifier utilizes a breaker to protect...

Page 43: ...Model Channels 2 Ohms 4 Ohms 8 Ohms 16 Ohms 70Vrms 100Vrms 8 600ND 8 300 600 600 300 600 600 4 1250ND 4 1250 1250 1250 625 1250 1250 Dual Mode All Channels Driven Minimum Guaranteed Power 20 Hz 20 kHz DCi Model 4 Ohm 8 Ohms 16 Ohms 140Vrms 200Vrms 8 600ND 600 1200 1200 1200 1200 4 1250ND 2500 2500 2500 2500 2500 Bridge Mono Mode All Channels Driven Minimum Guaranteed Power 20 Hz 20 kHz DCi Model W...

Page 44: ...o full rated power 0 35 Damping Factor 20 Hz to 100 Hz 1000 1500 Crosstalk below rated power 20 Hz to 1 kHz 70 dB DC Output Offset with inputs shorted 10mV Input Impedance nominal balanced unbalanced 10 kOhms 5 kOhms Required AC Mains 10 100V 240V 50 60Hz Cooling Continuously variable speed forced air front to back airflow Load Impedance Stereo Dual Mode 2 16 Ohms 70Vrms and 100Vrms Load Impedance...

Page 45: ...ll of sale along with the defective unit to an authorized service center to obtain service They will handle the necessary paperwork and repair Remem ber to transport the unit in the original factory pack A list of authorized service centers in your area can be obtained from Crown Factory Service or online from http www crownaudio com support servcent htm Factory Service Crown accepts no responsibi...

Page 46: ...ack material Do not ship your unit in a wood or metal cabinet 4 If you provide your own shipping pack the minimum recommended requirements for materials are as follows a 275 P S I burst test Double Wall carton that allows for 2 inch solid Styrofoam on all six sides of unit or 3 inches of plastic bubble wrap on all six sides of unit b Securely seal the package with an adequate carton sealing tape c...

Page 47: ...r factory within a reasonable time after receipt of the defective product at our authorized service center or our factory All expenses in remedying the defect including surface shipping costs in the United States will be borne by us You must bear the expense of shipping the product between any foreign country and the port of entry in the United States including the return shipment and all taxes du...

Page 48: ...____________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________ Other equipment in your system _________________________________________________________________________________________________ If warranty is expired please provide met...

Page 49: ...________________________________________________________________ Phone include area code ______________________________________ Fax ____________________________________________________ PRODUCT INFORMATION MODEL SERIAL PURCHASE DATE e g IT8000 CDi1000 PCC16 e g 800000000 mo day yr ____________________________________ ______________________________ ____ ____ ____ ____________________________________...

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