User manual ELECTRO-VOICE 2202 INSTRUCTIONS

[. . . ] A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. [. . . ] The DC-One preset memory provides 60 factory program presets and can store up to 20 user presets. recall (F01-F60 , U01­U20) Factory presets have been designed to represent common system configurations utilizing Electro-Voice loudspeaker systems. User presets allow you to accommodate other system configurations and / or loudspeaker systems. Press Recall a third time to confirm and load the new preset. If the preset you are recalling is based on a configuration different from that of the current preset, the display will prompt, "Changing config can damage speakers", to remind you that the new preset may not be appropriate for your system as it is currently connected. Press Recall again to confirm and load the new preset. Make sure that the new preset is appropriate for your system, and that connections to your system are correct for the current configuration. Failure to do so could cause unexpected results or damage to the system or its components. To exit the Recall process without loading a new preset, press the Edit, Setup or any of the DSP block buttons. (Edit or Setup buttons will return the display to run-time mode. DSP block buttons will display the corresponding DSP block 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. The following section is a detailed description of every DSP parameter available in the DC-One; grouped by DSP block, in order of the signal flow of the DC-One. Not all parameters may be accessible in every preset and, depending on the configurations set by the 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 DC-One Editor PC application. 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 DC-One'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) 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. [. . . ] Each output employs two X-Over filters that can be assigned to a variety of filter types and slopes. Each output channel provides 5 additional filters which can be used as parametric EQs, Low- / High-shelving filters, or Lo-Pass and Hi-Pass filters, and also as All-Pass filters. In addition to a gain control for adjusting the output level and a polarity switch, each output is monitored by a digital limiter with adjustable threshold, attack and release. Please use caution when changing configurations. [. . . ]