User manual DYNACORD DSP 260

[. . . ] 4 6 6 8 8 12 14 17 17 17 17 17 18 18 18 18 19 19 19 19 20 21 21 30 30 34 35 36 37 38 39 40 41 42 44 45 46 46 46 47 47 48 48 49 49 50 2 Owner`s Manual DSP 260 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 sufficent 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 maintenance (servicing) instructions in the literature accompanying the product. 1. Do not install near heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. Do not defeat the safety purpose of the polarized or the grounding-type plug. [. . . ] (Refer to "Configurations" illustrations to see which channels are parameter-linked for each configuration. For instance, setting a graphic eq curve for Input A, sets the same curve for Input B, if the configuration has linked stereo inputs. Either input channel can be edited; changes will be reflected in both. Output channels can be individually muted at any time, either from the DSP 260 front panel or the Graphic User Interface application. Full Edit Mode In the Setup menu, the edit mode can be changed to Full Edit. In Full Edit, no parameter links are enforced, regardless of the configuration selected. Any parameter can be changed without any effect on other parameter values. Regardless of the edit mode selected, there are two means to enter edit mode: pressing the Edit button or pressing any DSP block button. Use the < Select > buttons to navigate to the top line of any edit screen, and the Value Up and Down buttons to navigate to any other Edit screen. As a short-cut, press a DSP block button to jump to the last selected screen of said block and navigate as above to reach the desired screen. 5. 10 Parameters The following section is a detailed description of every DSP parameter available in the DSP 260; grouped by DSP block, in order of the signal flow of the DSP 260. Input A&B DSP Block Output 1-6 DSP Block Not all parameters may be accessible in every preset and, depending on the configurations set by the Owner`s Manual 21 DSP 260 contractor/installer, not all presets and/or preset values may be available for editing. Changes to preset availability, parameter availability and preset value ranges can only be set using the DSP 260 Editor PC application. Input Channel Hi-Pass Filter Use the < Select > buttons to make the top line of the Edit screen active and the Value Up and Down buttons to navigate to the Input Hi-Pass screen. The first DSP block in the DSP 260's signal flow is the stereo Hi-Pass Filter. In any sound reinforcement system, the Hi-Pass filter is crucial for maximizing the efficiency and performance of the PA system. Both analog and digital audio sources can include significant sub-sonic (infra-sonic) program material and artifacts. Audio frequencies below the threshold of human hearing can still be present at the amplifier inputs, and the amplifiers and loudspeakers will do all they can to reproduce them; at a great cost of power and efficiency. Hi-Pass filters can set a frequency, below which, signals will be attenuated or reduced. The cut-off frequency selected for the hi-pass filter ­ below which the frequencies will be attenuated - will vary depending on the program material and connected loudspeaker system. For example, full range music can produce frequencies down to the theoretical limit of human hearing (20 Hz), some acoustic music can be limited to frequencies above 60 Hz, and voice-only reproduction is limited to much higher frequencies. Hipass filter applications and settings will be determined by the needs of the given DSP 260 preset selected for the program material and sound reinforcement system. The DSP 260 Hi-pass filter offers several response curves, or slopes, to suit the needs of the given application. Select the curve that best meets the needs of your particular situation: Freq The cut-off frequency for the Hi-Pass filter. The frequency range is from 20 Hz to 200 Hz and is adjustable in 1 Hz increments. Select the frequency setting that is appropriate for the attenuation slope selected and type of program material. Bypass No sub-sonic or low-frequency filtering is applied. [. . . ] For Output channels, linking applies to Crossover Highpass and Lowpass filters (see page 42 for details). Owner`s Manual 37 DSP 260 7. 4 5-Way + FR The 5-Way configuration is a monaural 5-way frequency x-over. Crossover channels are fed from IN A, full range channels are fed from IN B. OUT 1 is a mono Sub frequency channel, OUT 2 the mono Very Low-frequency, OUT 3 is the mono Low-frequency channel, OUT 4 is the mono Mid-Frequency channel , OUT 5 is the mono High-frequency channel and OUT 6 is the Full-range channel. Note: On Input channels, all Parametric EQ and Graphic EQ parameters are not linked. [. . . ]