Violectric DAC V800, User Manual

Page 1: ...1 DIGITAL ANALOG CONVERTER DAC V800 version 2 0 USER s MANUAL ...

Page 2: ... About Violectric 3 Safety Instructions 5 The Earth Grounding Concept 7 Connection Connectors 9 General 10 Operation 11 Things to know 18 Dismantling Jumper Setting 20 Technical Data 22 Conformity Statement 23 Warranty 24 ...

Page 3: ...High End market with its specific requirements Who develops equipment devices are exclusively developed in Germany by the engineers of Lake People electronic GmbH In doing so the team of developers can draw on twenty years of experience and countless products for the pro audio domain Among others the first German made 20 bit A D and D A converters were developed by Lake People in the early ninetie...

Page 4: ...it should devices are covered by a 24 month warranty In case of any malfunction during this period they can be shipped to the manufacturer directly Of course the client will benefit from 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...

Page 5: ...tion to cords at plugs convenience receptacles and the point where they exit from the appliance This unit is equipped with a 3 pole mains cable with German 3 pin mains plug In some countries this unit must be operated with a mains adaptor supplied by the owner Please refer to the table below to connect a mains plug OVERVIEW POWER CORD FUNCTION AND COLORS CONDUCTOR COLOR Alternativ L LIVE BROWN BLA...

Page 6: ...ser should not attempt to service the appliance beyond the measures described in the operating manual All other servicing or repair should be referred to qualified personnel Electromagnetic Compatibility This unit conforms to the Product Specifications noted as Declaration of Conformity at the end of this manual Operation is subject to the following conditions this device may not cause harmful int...

Page 7: ...fted by means of this jumper As a result the interconnection for DC voltages and lower frequencies 150 Hz will be cut Higher frequencies will be bled off to earth potential through the RC filter The LIFT position is helpful in case of hum or jitter caused by different ground earth potentials Of coarse full electrical protection is garanteed as the case is always connected to ground earth potential...

Page 8: ...e is connected to the shell of the XLR connector The shell is ALWAYS connected to earth potential when the connector is inserted Concerning ANALOG inputs and outputs the relationship between ground and earth may be modified Electrical safety is always ensured since the earth conductor is permanently connected to the enclosure Please note that with jumpers in LIFT or GROUND position EMC emission mi...

Page 9: ...9 Connection Connectors ...

Page 10: ...lock switchable mute function resampling upsampling by multipliers 1 2 4 and BEST Delta Sigma D A converter with 120 dB dynamic range 112 dB THD sophisticated analog output stages with maximum dynamic range and minimum distortion digitally operated output level control additional internal maximum level jumpers 24 18 15 12 6 dBu ex works preset to 15 dBu unbalanced out 9 dB less high quality op amp...

Page 11: ...e mains cord with Schuko type plug The device is normally set to 230V mains whereas the actual voltage may vary between 190 and 250 volts for flawless operation The US and Japan version comes with a US style mains cord and the unit is set to 115 V mains Here the AC voltage may vary between 85 and 125 volt for flawless operation A toroidal transformer provides the internal operating voltages of 18 ...

Page 12: ...st notebook or PC with word length up to 24 Bit and fixed sample rate of 44 1 48 or 96 kHz In order to avoid any interference caused from the host the USB input is fully insulated with the signal coupled via transformer The balanced input is equipped with an XLR socket according to AES 3 1992 transformer balanced at 110 ohms input impedance and 200mV sensitivity at Tnom 2 The coaxial input is fitt...

Page 13: ...out 2 sec Now either the x1 LED is lit default or the BEST LED is lit Pushing shortly the MODE button will change the status Store your entries and leave the menu by pushing the MODE button for 2 seconds When x1 mode was selected the digital output word will be the same as the digital input word with identical same sample rate regardless which resampling mode OFF x1 x2 x4 was selected When BEST wa...

Page 14: ... unbalanced lines to the balanced outputs pin 3 must not be bridged but left unused In this case the resulting output level will be 6 dB less THE POWER SWITCH The unit is activated by means of the power switch Power on status is indicated by the blue LED below INPUT SELECTION By pressing the INPUT SELECT button the inputs USB BALanced COAXial OPTO can be selected in clockwise order If a valid sign...

Page 15: ...ure offered by so called sample rate converters available since the nineties of the past century While early sample rate converters could provide conversion ratios of 1 2 to 2 1 at 100dB dynamic range only ratios of 1 16 to 16 1 at 140 dB dynamic range are feasible today In principle the digital data stream is asynchronously disassembled by a DSP specially developed for this purpose and can be rec...

Page 16: ...twice the original sample rate If the input sample rate exceeds 110 kHz the unit switches back to x1 mode automatically 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 the unit switches back to x1 mode automatically or to x...

Page 17: ...els are expressed with a negative sign The translation of the digital level into analog is provided by the D A converter and is extremely flexible whereby several standards have established Professional broadcast facilities in Germany i e radio and TV stations understand 0 dBFs as equivalent to 15 dBu analog level In other countries this may be handled differently Notabene 15 dBu represent a volta...

Page 18: ...ossible to the right end stop should be chosen to achieve the maximum desired loudness Coarse level should always be set by means of the DIP switches described above HOW IT ALL WORKS The DAC V800 offers high class technology by means of well though out handling a variety of inputs the resampling module a top notch converter and above all its outstanding and flexible analog output circuitry Taken f...

Page 19: ...ut careful consideration of the analog output stages it wouldn t have been possible to make the outstanding performance of the top notch converter available at the analog outputs In case of the DAC V800 the converter is followed by an amplifier specially designed for this purpose with a topology similar to an instrumentation amplifier It distinguishes itself by a wide dynamic range minimum distort...

Page 20: ...ed without any hazard DISMANTLING As the 4 pin XLR socket is fixed to the back side of the front panel the front panel may NOT be disassembled To avoid damages please follow the instruction below 1 screw off both upper screws on the front panel 2 screw off both upper screws on the back panel 3 unscrew ALL remaining screws on the back panel by 1 10 2 3 mm 4 now lift the upper lid 5 make your person...

Page 21: ...21 JUMPER SETTING DAC V800 ...

Page 22: ...led Digital Input Formats AES EBU S P DIF up to 24 Bit Input Sample Rates Bal Coax Opto 28 210 kHz USB 44 1 48 96 kHz Analog Frequency Range 4 Hz 53 kHz 0 5 dB THD k2 k10 112 dBu Dynamic Range A wtd 122 dB Crosstalk 1 kHz 125 dB Crosstalk 15 kHz 110 dB Bal Analog Outputs 2 x XLR male Bal Analog Output Level 24 18 15 12 6 dBu selectable ex works set to 15 dBu Output CMRR 15 kHz 60 dB Output Impedan...

Page 23: ...fication of conformity with regard to electromagnetic compatibility the following harmonized standards are applied EN 50081 1 1992 Generic emission standard EN 50082 1 1992 Generic immunity standard Product family standard for audio video audio visual entertainment apparatus EN 55013 2001 EN 61000 3 2 2000 EN 55020 2002 EN 61000 3 3 1995 This declaration is given under responsibility of Konstanz 0...

Page 24: ...f the warranty If it is necessary please dispatch your item to Lake People electronic GmbH Fon 49 0 7531 73678 Turmstrasse 7a Fax 49 0 7531 74998 D 78467 Konstanz E Mail info lake people de Your warranty claim begins with the date of purchase which should be denoted on your proof of purchase In case of return do not forget to include the receipt of sales or a copy of the receipt Please also includ...