> Edit < > HPF PEQ GEQ Delay Setup Store Recall X-Over PEQ Delay Level Electro-Voice DC-One M Program:V01 (FullEdit (2in. 6out)) > Mute Mute Mute Mute Mute Mute Owner’s Manual www.electrovoice.
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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 appliance. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Read these instructions.
Contents Introduction .........................................................8 DC-One Features ..................................................................... 8 Controls & Connection .......................................... 10 Front Panel ............................................................................ 10 Rear Panel ............................................................................. 14 Installation ............................................................................
Routing ...................................................................................................... 29 Cross-Over (Output Channels) ...................................................................... 29 Parametric EQ (Output Channels) .................................................................. 31 Delay (Output Channels) ............................................................................. 31 Channel Level (Output Channels) ........................................................
Overview Compare / Edit Select Buttons Input Meters Value > Display Edit < > Setup Store Recall Electro-Voice DC-One Program:U01 (FullEdit (2in.
Processing Menues for High Pass Filter, Parametric EQ, Graphic EQ and Delay HPF PEQ GEQ Delay X-Over PEQ Delay Level Mute Output Control buttons for Cross-Over, Parametric EQ, Delay and Level Output Gain Reduction Meters, Output Channel Function Indicators and Output Level Meters Mute Mute Mute Mute Mute Output Channel Mute Buttons 7 Owners Manual
Introduction IMPORTANT NOTE > Thank you for purchasing the Electro-Voice DC-One Digital Signal Processor. The Electro-Voice DC-One Digital System Processor is a universal two-input, six-output digital signal processor with the flexibility of configuration to handle a multitude of audio system needs and applications; installed sound, house of worship, convention & meeting facilities, concert touring, club, portable sound reinforcement and more.
Matrix Router / Mixer • Two (stereo) inputs • Summed left / right (mono) input • Six assignable outputs Outputs (each) • Cross-over (hi-pass / low-pass filters), with selectable filter types • 5-band parametric equalizer • Delay • Polarity • Peak RMS detecting limiter • Level & Mute • 24-bit, 48kHz D/A converters Additional features include: • Electronically balanced XLR inputs and outputs • -6dBu switchable input level pad • Contact closure interface for recall of up to eight selec
Controls & Connection Front Panel 1 – USB Connector USB 1.0 port for connection to a PC running Windows XP or Vista. With a connected PC you may run the DC-One Editor Graphic User Interface Application. The DC-One can be operated, edited and configured for installation with an easy to use, intuitive interface. Any available firmware updates downloadable from www.electrovoice.com can be loaded via the USB port as well; allowing for easy in-field updates.
4/5 – Value Up/Down Buttons Depending on the current LCD screen, the Value Up/Down Buttons performs the following function: Recall – Select forwards/backwards through the stored preset list to select a preset to be recalled to current memory. Store – Select User Preset destinations forwards/backwards to select a destination for the currently edited preset, scroll forwards through ANSI character set to name preset.
10 Store Button Pressing the Store button while in Run mode displays the Store Preset screen in the LCD display and the Store button lights. In this screen edited presets can be named and saved to a user preset location. Pressing the Store button again completes the preset save operation. To exit without storing the current preset, press the Edit or Setup buttons to return to the Run mode screen.
17 – Output PEQ Button Pressing the PEQ button places the current preset in Edit mode and jumps to the first Output Parametric Equalizer screen. Subsequent button presses step through the six output channels. 18 – Output Delay Button Pressing the Delay button places the current preset in Edit mode and jumps to the Output Channel Delay screen. Subsequent button presses step through the six output channels.
23 – Output Channel Function Indicators Each output channel has a four-segment function display for informational purposes only. For any given configuration possible with the DC-One, an output channel may be identified as a sub, low, low/mid, mid, mid/hi, hi or full range output. One or two adjacent LED are displayed to indicate all possible output bandpasses. (Full range is indicated by no lit LED’s.) Rear Panel 24- A.C. Inlet The DC-One features a standard IEC A.C.
28 – Balanced XLR Outputs Each output channel has an electronically balanced XLR connector for connection to system amplifiers. Each output channel can output different frequency ranges depending on its assignment and cross-over settings. Care must be taken to assure that each output is connected to an appropriate amplifier and loudspeaker to avoid damage or unexpected results. Note that a new preset may change the assignment of channel and its frequency range.
Installation For proper operation, all directions regarding installation and connection must be followed. Mounting The DC-One should be mounted in a rack-mount enclosure or rack rails. The unit is 1RU tall by 14” (353mm) deep. Proper clearance for air circulation around the unit must be provided. Do not block any vent holes on the unit. For secure mounting and electrical insulation, correct rack screws must be used – #10-32 screw with plastic / nylon cup washer.
Un-balanced Input / Output Connections Un-balanced connections can be made to the DC-One, although induced noise from cabling may be increased. Cables should also be less than 15” (5m) in length. Unbalanced connections can be 6dB lower in level as well. To match the audio level obtained with a balanced connection, it is necessary to tie pin 3 to ground at the XLR connector. This may increase noise.
USB Connecting the DC-One to a PC for operation via the DC-One Graphic User Interface application is accomplished via the front panel USB port. The port conforms to the USB 1.0. Type B specification. Type B USB cables are readily available at computer dealers. Connection to Amplifiers It is very important to confirm correct connection to all amplifiers. The DC-One has the ability to configure each output for a specific frequency range; sub, low freq. mid freq, high freq.
Editing & Operation Factory Presets The DC-One comes with 60 factory presets to configure and manage typical sound reinforcements systems. Factory presets can be recalled at will. Limited editing can be performed from the front-panel LCD user interface such as output level, mute and limiter threshold setting. Installers can identify factory presets with system configurations that are not appropriate for the given installation and lockout and hide them from the operator.
Run-time Mode LCD Display On power-up, the DC-One boots and displays the run-time screen. The current preset memory location and name are displayed as well as the configuration on which the preset is based. Caution Before operating the sound reinforcement system, and any time a new preset is recalled, check the configuration display to make sure that it is appropriate for your system and that connections to your system are correct for the current configuration.
Output Gain Reduction Meters Each output channel has a four-segment gain reduction meter that shows the effect of the output channel Limiter on output level; from 0dBu to -12dBu. Output limiting can be bypassed by entering Edit mode, selecting Output Channel Limiter and selecting a limiter threshold of +21 dBu (8.205V) or turning the Bypass parameter to “On”. Output Channel Mute Buttons Each output channel has a lighted Mute button. Pressing the Mute button turns off the output of that channel.
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.
Edit Both Factory and User preset can be edited, but edited presets can only be stored in User preset locations. Standard Edit Mode The DC-One defaults to Standard Edit mode wherein, input and output channel parameters are appropriately linked. (Refer to “Configurations” illustrations to see which channels are parameter-linked for each configuration. Linked parameters are always identical in value.
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. HPF 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) program material and artifacts.
Input Channel Parametric EQ 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 PEQ screen. PEQ INP The DC-One provides a stereo nine-band multi-mode filter generically referred to as the Input PEQ (Parametric Equalizer). The Input PEQ is a very powerful and complex set of multi-mode filters. Care must be given configuring these filter bands, as they interact and can produce unexpected results.
Use the < Select > buttons to navigate to the filter setting you wish to adjust, and the Value Up and Down buttons to alter these settings. Press the Value Up and Down buttons once to increment values by one unit, or press and hold to scroll rapidly through available values. (Values do not wrap-around.) For detailed EQ plot images please see page 44 PEQ PEQ is shorthand for Parametric Equalizer.
For detailed EQ plot images please see page 45 Hi-pass The Hi-Pass filter determines the ultimate low frequency that your sound reinforcement system is allowed to reproduce; given the capabilities of amplifiers, speakers and transducers. Keep in mind that the DC-One signal path already includes a hi-pass filter prior to the Input PEQ DSP block. Settings to this filter in most configurations may be redundant or interactive with the initial HiPass filter. Available parameters are Frequency and Slope.
Input Channel GEQ (Graphic Equalizer) 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 GEQ screen. GEQ UT The DC-One’s input signal path includes a stereo 31-band graphic equalizer after the stereo 9-band PEQ in the signal path. This DSP block can be used for very precisely identifying, isolating and correcting problematic frequency ranges.
Routing Input selections (In-A, In-B or In-A+B) can be applied to any or all of DC-One’s six outputs. Choose a desired output channel from the output menu and press the Edit button to scroll to the Routing window using the Value up/down arrows. Using the
Frequency Frequency offers a selectable frequency range from 20.0 Hz to 20,000Hz. For detailed EQ plot images please see page 45 Hi-Pass/Lo Pass The DC-One Hi-Pass and Lo-Pass filters are determined by selecting the Type from the list of parameters, (see list above) and by choosing a frequency range between 20.0 Hz to 20,000Hz. (See above) The crossover filter generally consists of a low pass filter in one channel and a high pass filter in the adjacent channel.
Parametric EQ (Output Channels) Pressing the PEQ button places the current preset in Edit mode and jumps The LCD screen to a pre-selected parametric EQ (bands 1-5). Subsequent button presses advances the display to the next output channel (OUT1 to OUT6). Use the
Channel Level (Output Channels) The Channel Level is used to adjust master output levels. To access the Channel Level screen, press the Level button found on the output processing menu. Subsequent button presses will toggle the display between OUT1 to OUT6. Use the
Setup IMPORTANT NOTE The Setup menu allows access DC-One’s global parameters on the LCD screen. This is where preferences for many functions can be set or adjusted. Pressing the Setup button brings up the first Setup window. Use the VALUE up/down arrows to scroll through the Setup menu: Use the
Input This window is where the global input mode is set.
V = 331m/s + (0.6m/s/C) * T The speed of sound at room temperature is 346 meters per second. At freezing temperatures sound travels at 331 meters per second. V is the speed of sound and T is the temperature of the air. This formula finds the average speed of sound for any given temperature (celcius). The speed of sound is also affected by other factors such as humidity and air pressure. Editing Editing mode is where the Edit Mode (Standard Edit or Full Edit) is set.
System This window displays the firmware version currently running on the DC-One. RS232 Port An RS 232 (DB-9 or ‘D-Sub’) connection is provided on the back panel to link to another DC-One to enable Master/Slave operation. Use the
Configurations of the DC-One > COMPARE SELECT Edit < > Setup Store Recall VALUE > The DC-One 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, Full Range) including basic x-over filter settings, and different channel/ parameter linking schemes. The active configuration is defined by the selected program i. e.
Stereo 2 Way + Full Range This configuration generally represents a 2-way stereo frequency crossover, where IN A serves as the left input channel and IN B as the right input channel. OUT 1 is the left Low-frequency output and OUT 2 is the left High-frequency output. OUT 4 and OUT 5 are the corresponding right Low-frequency and High-frequency output channels. Note: On Input channels, all Parametric EQ and Graphic EQ parameters are linked.
3 Way Stereo This configuration represents a 3-way frequency crossover where IN A serves as the left input channel and IN B as the right input channel. OUTs 1 & 4 L/R are the Sub frequency channel, OUT 2 &5 L/R are Low and Mid-frequency channels, 3 & 6 L/R are the High-frequency channels. Note: On Input channels, all Parametric EQ and Graphic EQ parameters are linked. For Output channels, linking applies to Crossovers, EQ, Delay Level and Limiter.
4 Way + FR The 4-Way configuration is a monaural 4way frequency x-over. Crossover channels are fed from IN A, full range channels are from IN B. OUT 1 is a mono Sub frequency channel, OUT 2 is a mono Low-frequency channel, OUT 3 is a mono Mid-frequency channel, and OUT 4 is the mono Highfrequency. OUT 5 and OUT 6 are Full-range channels. Note: On Input channels, all Parametric EQ and Graphic EQ parameters are not linked.
5 Way + FR The 5-Way configuration is a monaural 5way 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 Lowfrequency 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.
Free Configuration - Full Edit 2 in 6 Out In this configuration, all 6 outputs are configured for full range operation. OUT 1, OUT 2 and OUT 3 get their signal-feed from IN A while OUT 4, OUT 5 and OUT 6 are fed from the input channel IN 2. This configuration provides a “blank slate” for creating any custom routing and processing application. Note: In this Configuration, no channels or parameters are linked.
3 Way Stereo-Mono Sub+FR This 3-way configuration provides stereo crossover for Low-frequency and Highfrequency devices and a summed mono feed for subs as well as a Full-range output. IN A serves at the left input and IN B serves as the right input. OUT 1 is a mono Sub-frequency channel, OUT 2 & 5 are L/R Low-frequency channels, OUT 3 & 6 are L/R High-frequency channels and OUT 4 is the Full-range channel. Note: On Input channels, all Parametric EQ and Graphic EQ parameters are linked.
4 Way Stereo -MonSub+LF The 4-Way Stereo –Mon + Sub + LF configuration is a stereo 4-way frequency x-over. Mono Sub-frequency and Lowfrequency channels are fed from IN A + IN B, Mid-frequency and High-Frequency left are fed from IN A, Mid-frequency and HighFrequency right are fed from IN B.
EQ Plot Images 6dB PEQ Cuts Q Changes 6dB-Oct Shelves at 200Hz and 2kHz 45 Owners Manual
12dB PEQ Cuts Q Changes 12dB-Oct Shelves at 200Hz and 2kHz 46
Bessel Filters Butterworth Filters 47 Owners Manual
Hi Lo Pass Filters Linkwitz-Riley Filters 48
PEQ Gains 49 Owners Manual
3-Way Stereo (+FR) 4-Way (+FR) 3 2-Way Stereo (+FR) 2 1 Input B Input B HPF PEQ GEQ Delay Input B Input A HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters Input A HPF PEQ GEQ Delay Parameters Input A Out 2 In A / Low Parameters PEQ Hi-pass Lo-pass Delay Level Limiter In A / Sub PEQ Hi-pass Lo-pass Delay Level Limiter Source/Bandpass Parameters Source/Bandpass Out 2 PEQ Hi-pass Lo-pass Delay Level Limiter PEQ Hi-pass Lo-pass Delay
Owners Manual 3-Way Stereo, Mono Sub+FR 4-Way Stereo, Mono Sub/LF 7 Free Configuration 5 6 5-Way (+FR) 4 Input B Input B Input A Input B Input A Input B Input A HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters HPF PEQ GEQ Delay HPF PEQ GEQ Delay Parameters Input A Out 1 Out 2 Link Link Out 3 In A+B / Low Mono Parameters PEQ Hi-pass Lo-pass Delay Level Limiter In A+B / Sub Mono
Dimensions 483mm 19in P r o g r a m: U 0 1 F u l l Ho u s e R i g h t ( 4 - Wa y + F R ) 43.6mm 1.72in Edit < > HPF PEQ GEQ Delay Setup Store Recall X X-Over PEQ Delay Level Mute Mute Mute 441mm 17.36in WARNING: AVIS: CAUTION: ATTENTION: 357mm 14in 353mm 13.9in 43mm 1.
Technical Specifications General Mains Voltage Power Consumption 100-240 VAC 50-60 Hz 25W Audio Analog Inputs Digital Inputs Nominal Input Voltage Maximum Input Voltage (Without -6dB Analog Pad Engaged) Input Impedance Common Mode Rejection A/D Conversion Outputs Nominal Output Voltage Maximum Output Voltage Output Impedance D/A Conversion Frequency Response THD+N Dynamic Range 2x XLR IN, electronically balanced 2x XLR THRU OUT, electronically balanced 1x XLR AES/EBU IN 1.23 V / +4 dBu 8.
Notes 54
For additional warranty repair or service information, contact the appropriate Telex service department listed below: Telex Communications Inc.
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