Table of Contents
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Table of Contents
Related Manuals for Violectric dac v850
Summary of Contents for Violectric dac v850
- Page 1 DIGITAL-ANALOG CONVERTER DAC V850 (version 1.1) USER´s MANUAL...
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Page 2: Table Of Contents
Content Theme Page About Violectric Safety Instructions The Earth / Grounding Concept Connection / Connectors General Operation The Remote Control Option Programming / default settings Things to know Dismantling / Jumper Setting Technical Data Conformity Statement Warranty Here you can find the USB drivers: http://www.violectric.de/violectric-others.html... -
Page 3: About Violectric
Cordial thanks for your decision in favour of a product ! is a trademark and product line of Lake People electronic GmbH. Lake People electronic GmbH develops, manufactures and distributes products in the professional range, for broadcast, television, airports, exhibition halls, festival venues, theatres, large-scale installations, private studios and more. - Page 4 's and Lake People's full technical support even when warranty has expired. Any technical questions or need for advice is welcome. is a subsidiary of LAKE PEOPLE electronic GmbH Turmstrasse 7a D-78467 Konstanz Fon +49 (0) 7531 73678 Fax +49 (0) 7531 74998 www.violectric.de www.violectric.com www.lake-people.de www.lake-people.com...
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Page 5: Safety Instructions
General Safety Instructions WARNING For your protection, please read the following: Water, Liquids, Moisture: This appliance should not be used near water or other sources of liquids. Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings. - Page 6 Mains Fuse: The mains fuse of this appliance is soldered in place and accessible from the inside only!! A blown fuse may indicate an internal problem and should be replaced during qualified servicing or repair work !! Switchable Power Supply: Connect this unit to the power source indicated on the equipment rear panel only to ensure safe operation !! This unit is provided with an internally settable mains supply for 115 / 230 V AC.
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Page 7: The Earth / Grounding Concept
The Earth / Grounding Concept General GROUND-LIFT Jumper (accessible from the inside. Mind the SECURITY INSTRUCTIONS !! ): Ex-works this jumper is set to the LIFT position. The internal ground potential is “lifted” by means of this jumper. As a result, the interconnection for DC voltages and lower frequencies (<... - Page 8 Unfortunately there is no general recommendation how to solve hum and jitter problems - or even minimize them. The best way to succeed is to check different options !! In case of balanced cables, it should always been verified if the shield of the cable is connected to the shell of the XLR connector.
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Page 9: Connection / Connectors
Connection / Connectors... -
Page 10: General
GENERAL INFORMATION VIOLECTRIC DAC V850 is a top-range D/A converter, distinguished by its resampling unit, its 32-bit double mono converters and very particular analog output stages. By means of their specially designed, variable low-noise and low-distortion circuitry, the DAC V850 fulfils even highest demands. -
Page 11: Operation
THE CASE The DAC V850's case as well as the front/rear panels are made of solid aluminium. This choice of material ensures high mechanical stability and resistance. EARTH AND GROUND The DAC V850's case is grounded. Internal reference ground is bridged to protective earth by means of a jumper. -
Page 12: The Digital Inputs
- The optical input provides a TOS-Link connector according to EIAJ RC- 5720. - The USB terminal is specified as audio interface according to USB 1.1 / 2.0 standard. The USB 24/192 version needs a proprietary driver for proper operation which can be downloaded here: http://www.violectric.de/violectric-others.html... - Page 13 THE DIGITAL OUTPUT is located on the rear panel. It is fitted with a RCA socket according to IEC 958, unbalanced, at 75 ohms output impedance. The level at this output however complies with AES-3-id (1 Vss). The data word on this output is the same as on the selected input by default.
- Page 14 THE ANALOG OUTPUTS are situated on the rear panel, fitted with electronically balanced XLR terminals, as well as RCA sockets. Both outputs may be used simultaneously !! Polarity of the XLR terminals complies with AES 14-1992: 1 = ground, 2 = (+) in phase, 3 = (-) out of phase. Source impedance of all analog outputs is significantly lower than 1 (one) Ohm ! NOTE:...
- Page 15 INPUT SELECTION By pressing the “INPUT SELECT“ button, the inputs USB > BALanced > COAXial > OPTO can be selected in clockwise order. If a valid signal is present at the corresponding input, the blue "lock" LED will come up. Unused inputs or such with an invalid digital signal present are indicated by the red “MUTE / ERROR“...
- Page 16 Therefore inside DAC V850 a special low jitter oscillator with typical < 1 pS (Picosecond !) phase jitter is used. The oscillator is powered by a low noise source made of discrete components. By means of this process, all potential jitter vanishes...
- Page 17 - x4 The yellow "x4" LED indicates that the resampling function is activated, The digital input word will be recombined and forwarded to the D/A converter at four times the original sample rate. If the input sample exceeds 110 kHz (176.4, 192 kHz), the unit switches back to "x1"...
- Page 18 Notabene, +15 dBu represent a voltage of 4.5 Veff which may exceed the capabilities of many audio devices designed for a voltage swing of 1...2 volts. Therefore, the maximum output level of the DAC V850 can be adapted by means of internal DIP switches. While factory-preset to +15dBu, the maximum output level can as well be set to +24 / +18 / +15 / +12 / +6 dBu (with level knob fully clockwise).
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Page 19: The Remote Control Option
The activated mute is displayed by the red Mute/Error LED on the front panel. PROGRAMMING Some functions of DAC V850 are programmable. If - of any reasons - nothing seems to work as it should any more, follow these instructions to come back to DEFAULT SETTINGS: Push and hold the “INPUT SELECT”... - Page 20 Setting another address for the remote control Sometimes it may be meaningful to alter the address of the remote control because there is interaction with other devices at your home. “Address Ex works the remote control is set to 2”. To select another address proceed as follows: push and hold the “INPUT SELECT”...
- Page 21 Special settings: To enter the “special settings” push and hold the “RESAMPLING” button for two seconds. Now the blue “BEST” LED flashes constantly and the LED from the actual menu flashes once. When the LED is off afterwards, this menu item is set to default. When the LED is on permanently the menu item is active.
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Page 22: Things To Know
Each converter is based on a delta-sigma architecture and provides a dynamic range of 124 dB. According to the double-mono architecture two 32 bit D/A converters per channel are used inside DAC V850 to achieve higher linearity and lower noise. An incoming 16, 20 or 24 bit signal is expanded in a 32 bit signal inside the converters. - Page 23 In case of DAC V850, the converter is followed by an amplifier specially designed for this purpose, with a topology similar to an instrumentation amplifier.
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Page 24: Dismantling / Jumper Setting
DISMANTLING / JUMPER SETTINGs Hint: Here we are talking about internal adjustments inside your DAC V850. You are in need of a screw drivers TORX style size T10 or a 3mm hex allen key. You should by all means PULL THE MAINS PLUG !!! Only thereafter the settings can be altered without any hazard. - Page 25 JUMPER SETTING DAC V850...
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Page 26: Technical Data
TECHNICAL DATA DAC V850 All Measurement RMS unwtd., 20 Hz - 20 kHz, Sample-rate 48 kHz, digital level = 0 dBFs, analog output level = +15 dBu, Resampling set to x1, as not otherwise noted Digital Inputs: - 1 x XLR female, transformer balanced,... -
Page 27: Conformity Statement
CONFORMITY STATEMENT We herewith declare that the following unit Name: VIOLECTRIC DAC V850 Serial No. : -all - is in conformity with the following EC directives: 2006/95/EG Low voltage directive 20014/30/EC EMC directive EN 60065:2002+A12:2011 Security directives for audio-, JIS C6065:2013... -
Page 28: Warranty
WARRANTY Since 1986 we are constructing and manufacturing sophisticated electronics for ambitious customers. Since the early beginnings we are trying hard by accompanying measures, the use of 1st choice components and multiple quality checks during production to avoid faults at large. We are quite effective in that and this is –...