DXP4800 Loudspeaker Management System Owner’s INSTALLATION GUIDE Manual
REFERENCE TO EC STATEMENT OF CONFORMITY This document confirms that the range of products of Community Professional Loudspeakers bearing the CE label meet all the requirements in the EMC directive 89/336/EEC laid down by the Member States Council for adjustment of legal requirements, furthermore the products comply with the rules and regulations referring to the electromagnetic compatibility of devices from 30 August 1995.
Table of Contents 1.0 2.0 3.0 4.0 5.0 6.0 Introduction .....................................................................4 Features...........................................................................4 Front Panel Functions ....................................................6 Rear Panel Functions .....................................................7 Powering Up the Device .................................................8 Operating the Device ....................................................
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.
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3.0 Front Panel Functions 3 1 4 6 5 2 1. Mute keys - Mute/Unmute input and output channels. When an input channel is muted, a red LED will come on for indication. 2. Gain/Menu keys - Selects the corresponding channel for the LCD menu display and is acknowledged by a green LED. The last modified menu will be displayed on the LCD. Linking multiple channels is accomplished by pressing and holding the first channel key, then pushing the other desired channels.
4.0 Rear Panel Functions 1,2,3 1,2,3 4 5 6 1. Main Power - Connects via a standard IEC socket. A compatible power cord is supplied with the unit. The voltage input can be switched between 115VAC or 230VAC. The DXP4800 features a voltage switch to choose between 115VAC or 230VAC. 2. Main Fuse - T0.5A-250V for 115VAC and T0.25A-250V for 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.
5.0 Powering Up the Device After powering up the unit, the following initialization screen is displayed on the LCD: ** COMMUNITY *** ** DXP4800 CONTROLLER *** ------ INITIALIZING ------ The initialization process takes about 8 seconds and during that period the unit boots and displays the DXP4800 firmware version.
LEVEL - Gain, -40.00dB to +15.00dB in 0.25dB steps. POL - Polarity, can be normal (+) or inverted (-). DELAY - Delay in 21us steps. Can be displayed in ms, ft or m. The time unit of the delay can be changed in the System menu. The maximum delay permitted is 24,000 steps (500ms). EQ - EQ parameters IN_1:XXXXXX MENU:EQ EQ# :1 BW:0.33oct LEVEL:0.00dB Q=4.36 FREQ :1000Hz TYPE:Param EQ# - Selects one of the 6 available Equalizers. LEVEL - EQ level gain. Ranges from -30.00dB to +15.00dB in 0.
EQ - EQ paramters OUT_1:XXXXXX MENU:EQ EQ# :1 BW:0.33oct LEVEL:0.00dB Q=4.36 FREQ :1000Hz TYPE:Param Refer to the Input Menus for details XOver - Crossover parameters OUT_1:XXXXXX FTRL:Off FRQL:1000Hz SLPL:24dB MENU:XOver FTRH:Off FRQL:1000Hz SLPH:24dB FTRL - Filter Type of low frequency crossover point (high pass). Types can be Buttwrth (Butterworth), Link-Ri (Linkritz Riley) or Bessel. FRQL - Filter cut-off Frequency of low frequency crossover point (high pass).
Limit - Output Limter OUT_1:XXXXXX MENU:Limit THRESH :+20.0dBu ATTACK :100ms RELEASE:32x THRESH - Limit Threshold. Ranges from -20 to +20dBu in 0.5dB steps. ATTACK - Attack time. Ranges from 0.3 to 1ms in 0.1ms steps, then ranges from 1 to 100ms in 1ms steps. RELEASE - Release time. Can be set at 2X, 4X, 8X, 16X or 32X the attack time. Source - Input Source OUT_1:XXXXXX MENU:Source 1:On 4:Off 2:Off 3:Off 1,2,3,4 – Input channel source for the current output channel.
SYSTEM-SETUP MENU:Recall PROG:01 NAME:XXXXXXXXXXXX PROG - Program Number to be recalled.. NAME - Program Name of the program. This is read only, the user has no access to them. Store - Program store The DXP4800 has a built in non-volatile memory that can store up to 30 different program setups. A program can be stored using this menu. The old program with the same program number will be replaced.
Copy - Copy channels SYSTEM-SETUP SOURCE:In1 TARGET:In2 MENU:Copy Copy Channels from the source to the target. When the Source and Targets are both Inputs or Outputs, all audio parameters will be copied. When one of the Source or the Target is an input while the other is an output, only the Level, Polarity, Delay and EQ are copied. SOURCE - Channel to be copied from. TARGET - Channel to be copied to.
SAMPLING RATE: - Sampling Rate selection. The unit can operate under 48kHz or 96kHz sampling rate according to this option. The device has to be shut down and turned back on for the hardware effect to take place. For 96kHz operation, crossover slopes can be up to 24dB/Oct only, while 48kHz gives crossover slopes to 48dB/Oct. Security - Security Locks The DXP4800 enables the user to secure the unit and prevent undesired changes in the setup.
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8.0 PC Control Software The DXP4800 is shipped with a special PC Graphic User Interface (GUI) application - XLink. XLink gives the user an option to control the DXP4800 unit from a remote PC via the RS232 serial 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 the PC’s hard drive, thus expanding the storage to become virtually limitless.
9.0 Specifications Inputs and Outputs Audio Control Parameters Input Impedance: Output Impedance: Maximum Level: Type: Gain: Polarity: Delay: >10k Ohms 50 Ohms +20dBu Electronically balanced Audio Performance Frequency Response: Dynamic Range: CMMR: Crosstalk: Distortion: +/- 0.1dB (20 to 20kHz) 115dB typ (unweighted) > 60dB (50 to 10kHz) < -100dB 0.
10. Warranty and Service Information The Community DXP4800 Electronic System Controller is warranted in the USA to be free from defects in materials and workmanship for a period of one (1) years, as determined by one of the following two methods, whichever is longer: 1. Starting from the date of retail purchase, as noted on the sales receipt from an authorized Community dealer, OR 2. Starting from the date of manufacture, determined by the serial number, if the sales receipt is not available.
receipt, the service center will determine if the problem is covered under warranty. If covered under warranty, the product will be repaired or replaced, at Community’s option, and returned to the owner freight prepaid. If the problem is not covered under warranty, the owner will be notified of the problem with an estimate of the repair costs.
333 East 5th Street, Chester, PA 19013-4511 U.S.A. Phone (610) 876-3400 Fax (610) 874-0190 www.loudspeakers.
© 2004 Community Light & Sound, Inc.
