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1.0 Introduction 

 
Welcome!  You’ve joined the group of people that have chosen high quality Community 
loudspeaker systems, accessories, and components for over 35 years.  We’re really gratified 
you did and we will do our best to make sure you are satisfied with your new DXP4800 digital 
system controller.  In order for you to get the most effective use of this product please take a 
few minutes to read this manual.  We have included a great deal of useful information that will 
help you to realize the best performance, operation, sound quality, and reliability from your new 
controller.  This manual contains information for the proper set-up and operation of the 
Community DXP4800 controller.  While every attempt has been made to ensure this information 
is correct and up to date, Community continuously incorporates worthwhile improvements to 
each product which may include changes and/or modifications not contained in this manual. 
 
The DXP4800 is a complete 4 input - 8 output digital loudspeaker management system 
designed for the touring or fixed sound installation markets. The absolute latest in available 
technology is utilized with 32-bit (40-bit extended) floating point processors and high 
performance 24-bit Analog Converters. The high-bit DSP prevents noise and distortion induced 
by truncation errors of the commonly used 24-bit fixed-point devices. A complete set of 
parameters include I/O levels, delay, polarity, 6 bands of parametric EQ per channel, multiple 
crossover selections and full function limiters. Precise frequency control is achieved with its 1 
Hz resolution. Inputs and outputs can be routed in multiple configuration to meet any 
requirements. The DXP4800 can be controlled or configured in real time on the front panel or 
with the intuitive PC GUI accessed via the RS-232 interface. Software upgrade for CPU and 
DSP via PC keeps the device current with newly developed algorithms and functions once 
available. Multiple setup storage and system security complete this professional package. 
 
The Community DXP4800 is inherently rugged and is carefully packed in well designed cartons.  
It is a good idea to carefully inspect the unit after it has been removed from the packaging as 
sometimes there is hidden damage due to some unfortunate incident during shipment.  Please 
note that once the shipment has left Community (or the dealer), the responsibility for damage is 
borne by the freight company.  This means that if there is damage, you must file a claim with the 
freight company.  Each freight company has its own set of regulations that must be followed and 
forms that must be filled out.  Therefore, the freight company must be contacted as soon as a 
shipping damage problem is discovered.  Save the carton and packing material because many 
damage claims will be considered invalid if these are thrown away.  The Community dealer and 
the factory will try to help in any way possible.  Remember, though, it is up to the party receiving 
the shipment to file a damage claim. 
 
It is always a good idea to keep the carton and packing material in case the unit must be 
shipped back to your dealer or country distributor. 
 

CONTENTS 

 
The shipping carton contains the following items: 
 
 

(1)   DXP4800 Digital System Controller 

 (1) Owner’s 

manual 

 (1) Warranty 

card 

 

 (1) XLink 

software

Community DXP4800 Owner’s Manual     Page 4 

Summary of Contents for DXP4800

Page 1: ...DXP4800 Loudspeaker Management System INSTALLATION GUIDE Owner s Manual...

Page 2: ...mpatibility of devices from 30 August 1995 The Community Professional Loudspeakers products bearing the CE label comply with the following harmonized or national standards DIN EN 55013 08 1991 DIN EN...

Page 3: ...ar Panel Functions 7 5 0 Powering Up the Device 8 6 0 Operating the Device 8 6 1 Input menus 8 6 2 Output Menus 9 6 3 System Menus 11 7 0 Quick Reference 15 8 0 PC Control Software 16 9 0 Specificatio...

Page 4: ...th its 1 Hz resolution Inputs and outputs can be routed in multiple configuration to meet any requirements The DXP4800 can be controlled or configured in real time on the front panel or with the intui...

Page 5: ...Crossover types with Full Function Limiters Precise Level Polarity and Delay CPU and DSP upgrade via PC Individual Channel Buttons with Linking capability 4 Line x 26 Character Backlit LCD Display Fu...

Page 6: ...um headroom The Output Limit LED references to the threshold of the limiter 4 LCD Shows all the necessary information to control the unit 5 Rotary Thumb Wheel Changes parameter data values The wheel h...

Page 7: ...230VAC Slow blow type 3 Power switch Controls power On Off 4 RS232 a standard female DB9 socket A straight through cable is required for PC connection 5 Option slots Digital Audio I O RS485 and CobraN...

Page 8: ...owering down the unit Now the DXP4800 is ready to operate 6 0 Operating the Device Tips Channel Linking If the user presses one of the Input or Output Menu keys holds it down and presses any other Men...

Page 9: ...steps The sampling rate and the frequency steps can be selected in the System Menu BW EQ Bandwidth Ranges from 0 02 to 2 50 octaves in steps of 0 01 octave steps for PEQ The Q value is automatically...

Page 10: ...int high pass Ranges from 6 to 48dB octave 48kHz or 6 to 24dB octave 96kHz in 6dB octave steps If the selected Filter Type is Linkritz Riley the available slopes are 12 24 36 48 dB octave 48kHz or 12...

Page 11: ...ut source are enabled they will be added together as the source for the current output channel Ch Name Channel Name OUT_1 XXXXXX MENU Ch Name NAME XXXXXX Refer to the Input Menus for details 6 3 Syste...

Page 12: ...ximum length of 12 characters Config Device Configuration SYSTEM SETUP MENU Config MODE 2 Way MODE configures the mode of operation Mode Out 1 Out 2 Out 3 Out 4 Out 5 Out 6 Out 7 Out 8 None Any Any An...

Page 13: ...Q MODE All Freq DELAY UNIT 01 DEVICE 1 FREQ MODE Selects the frequency control mode for EQ and crossover filters Can be 36 steps octave or All Frequencies 1 Hz resolution DELAY UNIT ms ft or m DEVICE...

Page 14: ...YSTEM SETUP MENU Security MENU In Signal LOCK No PASSWORD XXXX MENU Selects the menu to be locked unlocked The options are In Signal Input Signal Menu Level Polarity Delay In EQ Input EQ Menu In Name...

Page 15: ...h Linkwitz Riley Bessel Crossover Low XOver FRQL 20 20 000 1 Hz Crossover Low XOver SLPL 6 48 48kHz 24 96kHz 6 dB octave Crossover High XOver FTRH Off Butterworth Linkwitz Riley Bessel Crossover High...

Page 16: ...ial communication link The GUI application makes it much easier to control and monitor the device allowing the user to get the whole picture on one screen Programs can be recalled and stored from to t...

Page 17: ...andard IEC Socket General Power 115 230 VAC 50 60Hz Dimensions 19 x1 75 x8 483x44x203 mm Weight 10lbs 4 6kg Audio Control Parameters Gain 40 to 15dB in 0 25dB steps Polarity Delay Up to 500ms per I O...

Page 18: ...e option of Community without charge for materials or labor provided all the terms of this warranty have been met Obtaining Warranty Service Warranty service may be obtained from the factory or from a...

Page 19: ...the product Repairs and replacement parts provided under the terms of this warranty shall carry only the remaining portion of the warranty Community reserves the right to change the design of any pro...

Page 20: ...333 East 5th Street Chester PA 19013 4511 U S A Phone 610 876 3400 Fax 610 874 0190 www loudspeakers net...

Page 21: ...2004 Community Light Sound Inc 040624JL Community DXP4800 Owner s Manual Page 21...

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