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OWNER’S MANUAL
DSP 244
24 BIT DIGITAL SOUND SYSTEM PROCESSOR
1-1
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IMPORTANT SAFETY INSTRUCTIONS The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintance (servicing) instructions in the literature accompanying the a
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CONTENTS TABLE OF CONTENTS PAGE SAFETY AND SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.1 DSP 244 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.2 Unpacking and warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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INTRODUCTION 1. INTRODUCTION First of all, we would like to thank you for and congratulate you on buying the DYNACORD Digital Sound System Processor DSP 244. To ensure an optimum in the performance of the appliance and to prevent any damage resulting from erroneous or inadvertent handling or operation, please read this owner’s manual carefully, before operating the DSP 244. 1.1 DSP 244 FEATURES Providing 48-bit filter algorithms, 24-bit AD/DA conversion and a dynamic range of 115 dB, the DSP
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CONTROLS AND CONNECTIONS 2. CONTROLS AND CONNECTIONS 2.1 FRONT PANEL 1, Control INPUT 1 / INPUT 2 Rotary controls to set the input levels of the inputs 1 and 2 of the DSP 244. The input signal can be amplified by up to 6 dB (control set to its clockwise margin) or attenuated by any degree. Set the level as high as possible without clipping to achieve the highest possible S/N ratio. Checking your settings is possible via the reading of the two level meter instruments. 2, Level meters The level
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CONTROLS AND CONNECTIONS 8, STORE-key This key allows the user to store edited programs in one of the user-definable program presets (U01 - U30) or to copy programs from one preset to another. For further information, please refer to chapter 7.4, “STORE PROGRAMS AND PROGRAM NAMES”. 9, RECALL-key Pressing this key lets you enter the PROGRAM SELECTION mode where you can select factory or user-definable program presets through using the rotary encoder. By pressing the RECALL-key, the selected pro
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CONTROLS AND CONNECTIONS 2.2 REAR PANEL 17, Mains connector Connect the supplied mains cord to the mains connector. The DSP 244 is capable of handling mains voltages between 90 V AC to 250 V AC, so that switching the mains on the appliance is not necessary. 18, RS-232 Interface This is the data communication interface between the DSP 244 and a PC. It allows unit configuration and editing by using the DSP 244 Editor software. At this position installation of optional interface boards is possib
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INSTALLATION AND CONNECTIONS 3. INSTALLATION AND CONNECTIONS Correct connections is a vital factor in achieving the best results with the DSP 244. Before switching on the power you have to connect the supplied European standard mains cord to the DSP 244 and your mains wall outlet. The power supply unit of the DSP 244 automatically adapts to supply voltages in a range of 90 to 250 VAC, so that the appliance can be operated with different, country-specific mains voltages. To prevent any trouble o
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FIRST OPERATION 4. FIRST OPERATION 4.1 SWITCHING THE POWER ON Using the POWER-switch (16) the DSP 244’s power is switched on. Upon initializing is complete, the last program that had been active before turning off the appliance is recalled. For now, the display shows: Now, the DSP 244 is ready for operation. The display shows for instance: Here, you have entered the factory preset program F01, which is an universal program for the 2-way operation. The configuration is stereo 2-way - the initial
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QUICK START 5. QUICK START This paragraph describes in an overview the most important steps for a trouble-free operation of the DSP 244 in your PA-system. For a more detailed description of specific functions and parameters, please refer to the corresponding paragraph in the handbook. MAINS CONNECTION Plug in the supplied mains cord. Since the integrated power supply is capable of handling AC voltages between 90 V and 250 V, 50 / 60 Hz, within these limits no adjustments or switching is necessar
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QUICK START X-OVER SETTINGS In the Edit menu select the desired output channel by pressing the corresponding OUTPUT control. Then use the rotary encoder to select HIPASS XOVER in the display. Here you can set the low-cut frequency for the selected channel. Using the SELECT keys, you are able to select the parameters “Type” or “f” and edit their values through the use of the rotary encoder. After you are done, use the left SELECT key to re-position the cursor to the function block in the top line
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QUICK START COMPRESSOR / LIMITER SETTINGS A compressor / limiter automatically reduces level peaks above a certain threshold and therefore provides reliable protection against power amplifier clipping and damaging the connected loudspeaker systems. In most cases it is absolutely sufficient to set the compressor’s threshold to the modulation limit of the connected power amplifier. Select the desired output channel in the Edit menu by pressing the corresponding OUTPUT control. Using the rotary enc
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CONFIGURATIONS OF THE DSP 244 6. CONFIGURATIONS OF THE DSP 244 The DSP 244 offers 7 pre-defined configurations. A configuration is a basic setting that includes the routing of inputs and outputs, the function of the outputs (Sub, Lo, Mid, Hi, Fullrange), as well as the kind and amount of parameters. These 7 configurations are: - Stereo 2 Way - Stereo 2 Way / Mono Sub + Fullrange - 3 Way + Fullrange - 3 Way / Mono Sub + Fullrange - 3 Way / Independent Sub + Fullrange - 4 Way - 2-In-4 If you do n
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CONFIGURATIONS OF THE DSP 244 6.1 Stereo 2 Way This configuration generally represents a 2-way stereo frequency crossover, where IN 1 serves as the left input channel and IN 2 as the right input channel. OUT 1 is the left Low-range output and OUT 2 is the left High-range output. OUT 3 and OUT 4 are the corresponding right Low-range and High-range output channels. The parameters of the inputs 1 and 2 as well as the ones of the Low-range and High-range outputs are always set to identical values;
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CONFIGURATIONS OF THE DSP 244 6.3 3 Way + Fullrange The 3-Way + Fullrange configuration is a 3-way monaural x-over with additional full range output where IN 1 serves as input channel. OUT 1 is the Sub-range channel, OUT 2 the Mid-range channel, OUT 3 the High-range channel, and OUT 4 is the Fullrange channel. OUT 4 can be used for example for monitoring, delayed full range-systems or to provide separate sound reinforcement in adjacent rooms. The internal structure of the 3-Way + Fullrange con
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CONFIGURATIONS OF THE DSP 244 6.5 3 Way / Independent Sub + Fullrange As well as the two previous configurations, this configuration also represents a 3-way frequency crossover with additional full range output, with the difference that the Sub-range channel OUT 1 gets its signal-feed from the input channel IN 2. Thus, it is independent from the other output channels. The audio signal for the outputs OUT 2 ... OUT 4 is fed from the input channel IN 1. OUT 2 is the Mid-range channel, OUT 3 the H
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CONFIGURATIONS OF THE DSP 244 6.7 2-IN-4 In this configuration, all 4 outputs are configured for full range operation. OUT 1 and OUT 2 get their signal-feed from the input channel IN 1 while OUT 3 and OUT 4 are fed from the input channel IN 2. This structure is suitable for instance for the equalization of full range (wide-band) loudspeaker systems or passive multi-way systems. The following signal flow diagram shows the assignment of the inputs and outputs. An example of a typical multi-channe
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OPERATION 7. OPERATION The rotary encoder with push-button function for fast editing of parameter values, 6 function keys, and the push-button function of the output level controls OUT 1 - 4 are the main controls of the DSP 244. With EDIT, OPTION, STORE and RECALL you are able to branch off to and also return from the corresponding menus. The SELECT keys are used to choose between the different menu-pages or to select individual parameters. The rotary encoder lets you alter the parameter values
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OPERATION 7.1 PROGRAM SELECTION The DSP 244 offers 30 user-definable program presets (U01 - U30) and up to 50 factory pre-programmed presets (F01-F50). Altogether you have the possibility to choose from this selection of up to 80 different programs. CAUTION: A program also defines the configuration and therefore also assignment of the inputs and outputs of the DSP 244. When changing a program you have to keep in mind that also the wiring has to be changed, if for instance a Low-range output be
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OPERATION 3. Whenever the function block in the first line is selected, you are able to select another function block by using the rotary encoder (10). Pressing one of the controls OUT 1 - 4 lets you directly select the function blocks of the corresponding output channel. 4. Using the SELECT keys (5) and (6) you are able to select the desired parameter and the rotary encoder (10) lets you alter the value of the selected parameter. Keeping the rotary encoder pressed while turning it, increases
