Violectric dac v850 User Manual

1

DIGITAL-ANALOG CONVERTER

DAC V850

(version 1.1)

USER´s MANUAL

2

Content

Theme Page

About Violectric 3
Safety Instructions 5
The Earth / Grounding Concept 7
Connection / Connectors 9
General 10
Operation 11
The Remote Control Option 19
Programming / default settings 19
Things to know 22
Dismantling / Jumper Setting 24
Technical Data 26
Conformity Statement 27
Warranty 28

Here you can find the USB drivers:

http://www.violectric.de/violectric-others.html
http://violectric-usa.com/downloads

3

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. In the private sector
as well, Lake People products become increasingly popular due to their
outstanding quality.

The trademark and product line is specially intended to
supply the Hi-Fi and 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 nineties of the past century.

Who manufactures equipment ?

devices are exclusively manufactured in Germany by
Lake People electronic GmbH or contractors in the company's vicinity.

Lake People - and by association - put high emphasis
on domestic manufacturing. As well, all component suppliers are chosen

in order achieve the main part of added value inland.

4

How do devices get to the customer ?

devices can be obtained from respective specialist
suppliers. If there is none such accessible regionally, the customer is
supported by transregional distribution partners (google may help...)
and, of course, by Lake People electronic GmbH themselves.

… and if it doesn't work like 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 [phone]

Fax [phone]

www.violectric.de www.violectric.com

www.lake-people.de www.lake-people.com

5

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.

Power Sources:

The appliance should be connected to a power supply only of the type described
in the operating instructions or as marked on the appliance.

Grounding:

Care should be taken that this appliance is operated with proper grounding only.

Power Cord:

Power supply cords should be routed so that they are not likely to be walked on
or pinched by items placed upon or against them, paying particular attention 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 a dedicated mains plug for
the Europe, USA, Great Britain or China. 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

BLACK

N

NEUTRAL

BLUE

WHITE

E

PROTECTIVE EARTH

GREEN+YELLOW

GREEN

U.K. Mains Plug Warning:

A moulded mains plug that has been cut off from the cord is unsafe.

Discard the mains plug at a suitable disposal facility.

NEVER UNDER ANY CIRCUMSTANCES SHOULD YOU INSERT A DAMAGED OR

CUT MAINS PLUG INTO A 13 AMP POWER SOCKET. Do not use the mains plug

without the fuse cover in place. Replacement fuse covers can be obtained from your local

retailer. Replacement fuses are 13 amps and MUST be ASTA approved to BS 1362.

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.

Service / Repair:

To reduce the risk of fire or electric shock, the user 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 interferences

- this device must accept any interference received,
including interference that may cause undesired operation

- this device must not be operated within significant electromagnetic field

VOR DEM ÖFFNEN NETZSTECKER
ZIEHEN!! PULL MAINS BEFORE
OPENING!! AVANT D´OUVRIER
RETIREZ LA FICHE MALE!!

7

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
(< 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 granted as the case is always
connected to ground/earth potential !

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. 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 might occur,

for which the user is responsible only !

9

Connection / Connectors

10

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. As an option, the volume control, input selection and the

resampling functionality may be remote controlled.

Features:

- four switchable digital inputs:

- transformer balanced via XLR (AES 3), 24 bit / 192 kHz

- coaxial via RCA (S/P-DIF, AES-3id), 24 bit / 192 kHz

- optical via TOS-Link, 24 bit / 192 kHz

- USB 24/192 input Style B, transformer-coupled, X-mos based

- coaxial digital output which may be volume controlled

- LED signaling for active input, lock, error/mute and resampling mode

- resampling / upsampling by multipliers x1, x2, x4 and "BEST"

- 32 bit double-mono converters ( 2 converters per channel )

- Delta-Sigma D/A converter with 120 dB dynamic range / -112 dB THD

- output level adjustable on the front panel

- sophisticated analog output stages, max. dyn. range / min. distortion

- digitally operated output level control (32 bit processing)

- 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-amps along the signal path

- high-quality MKP capacitors along the signal path

- 0,1 / 1 % metal film resistors throughout the unit

- balanced signals from the D/A converters to the outputs

- analog outputs electronically balanced via XLR, unbalanced via RCA

- supersized toroidal transformer

- elaborate supply voltage, low ERS caps for filtering and stabilization

- Nextel-coated, thick-walled aluminum case

- solid 8mm aluminum front panel, BLACK or SILVER, laser-engraved

11

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. The jumper is set to the 'LIFT'
position (see also: page 7 "Earth/Ground concept", page 25 "Technical
Appendix").

POWER SUPPLY

Mains power is provided via a three-pin IEC/CEE socket and mating
"cold-appliance" mains cord. The device is normally set to 230V mains,
whereas the actual voltage may vary between 190 and 250 volts for
flawless operation.
There are dedicated mains cords for Europe, USA, Great Britain and
China. For the USA and some other countries the unit is set to 115 V
mains ex works. Here the AC voltage may vary between 85 and 125 volt
for flawless operation. A toroidal transformer provides the internal
operating voltages.

MAINS FUSE

The 0.25A time-lag fuse is soldered in place on the circuit board. In
case, it must be replaced with a fuse of the same type only.

CAUTION !!

MIND THE SAFETY INSTRUCTIONS:

A blown fuse indicates an internal fault and

should be replaced during qualified repair or

servicing only !!

12

THE DIGITAL INPUTS

Four digital inputs are found on the unit's rear panel. They are denoted
according to their electrical properties: balanced, coaxial (unbalanced),
optical and USB.
You won't find terms like AES, S/P-DIF, professional or consumer here,
since it doesn't matter at all which signal type is applied to a dedicated
input.
The electrical inputs (Bal and Coax) accept PCM-encoded digital audio data
with a word length of 16 ... 24 bit and 28 ... 210 kHz sample rate. So does
the optical input.
The USB- 24/192 circuitry uses the X-Mos chip set. It accepts 32, 44.1, 48,

88.2, 96, 176.4 und 192 kHz sample rate. 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 3­1992, transformer-balanced, at 110 ohms input impedance and 200mV
sensitivity at Tnom/2.

- The coaxial input is fitted with a RCA socket according to IEC 958 and
AES-3-id resp., unbalanced at 75 ohms input impedance and 200 mV
sensitivity at Tnom/2

- 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

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. But the output data may also be processed nearly free of jitter
by the resampling module.
To change the mode of the digital output see page 21 “special settings”.
All options for the digital output are listed below:

Hint:

When the resampling mode is active, also the volume from the digital
output signal will be attenuated by the front mounted attenuator or the
remote control.

Hint:

When the digital output is set to “Resampling Mode: ON”, but the
resampling action on the front panel is set to “OFF” - than the digital
output is muted.

Input

Sample-Rate

Resampling

Mode:OFF

Resampling Mode: ON

1x 2x 4x BEST OFF

28 - 55 kHz Follows input 48kHz 96kHz 192kHz 96kHz

no

Signal

55 - 110 kHz Follows input 96kHz 192kHz x 96kHz

110 - 210 kHz Follows input 192kHz x x 96kHz

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:

When connecting unbalanced lines to the balanced outputs, pin 3 must
not be bridged but left unused (open). In this case the resulting output
level will be 6 dB less.

NOTE:
The “special settings” menu will enable “phase reversed” analog outputs
instead of in-phase outputs if required. The phase shift is relative to the
incoming digital audio data and is no channel shifting by means
of L > R / R > L !!

THE POWER SWITCH

The unit is activated by means of the power switch. Power-on status is
indicated by the blue LED below.

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“ light.

RESAMPLING

Resampling is a mighty feature for the transformation/restoration of
jittered signals into high-quality signals. As well, the signal quality of

44.1 or 48 kHz sources can be improved by converting them to a higher
rate. This also complies to the USB input which often suffers from jitter
caused by improper treated computer outputs. With the aid of resamp­ling process nearly all jitter (and not only specific ones) is removed from
the USB data stream without using “asynchronous USB mode” which is
nonetheless also a feature of the USB input.
This isn't mystery at all, but a feature 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 recombined at
virtually any sample rate desired.
The quality of this recombination is directly dependent from the SRC´s

16

clock source. 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
almost completely and - due to the higher sampling rate - the analog
filters after the converter stage can follow a much more straightforward
and "musical" design. Furthermore, all digital input signals will be
completed to 24 bit.

THE RESAMPLING BUTTON

By pressing the “RESAMPLING“ button, the modes OFF > x1 > x2 > x4
> BEST can be stepped through in clockwise order.

- OFF

lights up when the resampling function is deactivated. The digital input
word is forwarded to the D/A converter without alteration.

- x1

The yellow “x1“ LED indicates that the resampling function is activated.
The digital input word will be recombined and forwarded to the D/A
converter at original sample rate.

- x2

The yellow “x2“ LED indicates that the resampling function is activated.
The digital input word will be recombined and forwarded to the D/A
converter at twice the original sample rate.
If the input sample rate exceeds 110 kHz (176.4, 192 kHz), the unit
switches back to "x1" mode automatically.

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" mode automatically or to "x2" mode in excess of 55 kHz
(88.2, 96 kHz) .

- BEST

The blue “BEST“ LED indicates that the resampling function is activated.
The digital input word will be recombined and forwarded to the D/A
converter at a sample rate of 96 kHz, a rate at which most contemporary
converters perform best.

All resampling-mode options:

THE VOLUME CONTROL

Analog output level is set by means of the "VOLUME“ control. Level
control as such is effected within the D/A converter for both channels
simultaneously by digital processing.
Also, no noise, no scratching, no crosstalk or gang errors can occur at
all. Control accuracy is 0.5 dB over a 120dB range.
And yes, the attenuator affects the data word length (and so: signal
accuracy). But as the attenuation is derived from the 32 bit process
within the D/A converters, virtually no signal deterioration has to be
taken into account as 32 bit represents a theoretical dynamic range of
192 dB.

Input

Sample-Rate

Internal sample rate at Resampling Mode:

OFF 1x 2x 4x BEST

28 - 55 kHz Follows input 48kHz 96kHz 192kHz 96kHz

55 - 110 kHz Follows input 96kHz 192kHz

x 96kHz

110 - 210 kHz Follows input 192kHz

x x 96kHz

18

ABOUT THE ANALOG OUTPUT LEVEL

Unlike in the analog world, digital technology uses a clearly defined
maximum level, described as 0 dBFs, or "zero deciBels Full scale" in
clear text. From this maximum downward, signal levels 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 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). For further details, see
appendix page 25.
The values above apply to the balanced outputs. Level at the
unbalanced outputs will be 9 dB lower, i.e. +15 / +9 / +6 / +3 / -3 dB.
Of course, all these settings are affected on the "active" side of the
circuitry, thus leaving output impedance completely unaffected. By
means of the active analog output adaptation to external conditions,
there are only negligible effects on overall performance... if at all !

19

Furthermore, analog output level is controlled by means of a potentio­meter on the front panel. Its setting is translated in the digital domain
only, thus excluding any kind of scratching, crosstalk or gang errors.

THE REMOTE CONTROL OPTION

can control the following functions:

- Volume - for this purpose a motorized potentiometer has been
installed. Pushing the dedicated volume-control buttons on the
remote control or the left/right buttons of the circular control pad will
alter the volume.

- Input selection - to directly select one of the 4 input channels push
the buttons 1 – 4 on the remote control or the + / - buttons from the
channel control or the up/down buttons of the circular control pad.

- Resampling functionality - is altered by pushing the red, green,
yellow or blue button on the remote control. The selected function
can be enabled/disabled by a repeated push on the same button.

- Mute - The Mute function is not present on the V850 front panel
itself. But a mute can be released by the affiliated button on the
remote control. 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” button whilst powering the
unit. Soon after all LEDs on the front panel will light up.
Now you can release the “INPUT SELECT” button as all settings
had been reset to default.

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.
Ex works the remote control is set to “Address 2”. To select another
address proceed as follows: push and hold the “INPUT SELECT” button
for about two seconds. Afterwards the “LOCK” LED flashes constantly
and the address lights up as follows:

Address 1 Address 2 Address 3 Address 4

Address 5 Address 6 Address 7 Address 8

To alter the address push (repeatedly) the “INPUT SELECT“ button.
To finalize your settings push the “INPUT SELECT” button for two
seconds and the blue “LOCK” LED stops flashing.

HINT:

Please keep in mind to also alter the setting of the remote control itself.
To do so, please follow the instructions of the remote control.

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.

To alter the menu conditions push the “INPUT SELECT” button.

The next menu item is called up by shortly depressing the
“RESAMPLING” button.
To exit the “special settings” push the “RESAMPLING” button for more
than two seconds.

Menu 1 (OFF) decides, if the digital output carries the
„simple“ looped through digital input signal (LED off =
default) or if the digital output signal was treated by the
resampling circuitry (LED lights permanently).

Menu 2 (x1) specifies if the analog outputs are muted
whilst the resampled digital signal and thus the digital
volume control is active on the digital output.
The analog outputs are active when the LED is off =
default, if the LED lights permanently the analog
outputs are muted.

Menu 3 (x2) serves to activate one out of two filters
inside the D/A converters. When the LED is off =
default, the slow/soft filter is active. When the LED
lights permanently the fast/sharp filter is activated.

Menu 4 (x4) defines the phase correlation between
the digital input signal and the analog outputs. When
the LED is off = default the analog signal is in-phase,
When the LED lights permanently the analog signal is
set out-of-phase.

22

HOW IT ALL WORKS...

The DAC V850 offers high-class technology by means of well though­out handling, a variety of inputs, the resampling module, top-notch
converters and, above all, its outstanding and flexible analog output
circuitry.
Taken from one of four possible inputs, the digital signal is forwarded to
the resampling module. Its business is to prepare the incoming signals
for processing in the subsequent circuitry. As well, the desired
resampling ratio is set at this stage.
The resampling module recognizes the input data as PCM audio and
evaluates the status bits found in the digital signal. Furthermore, the
resampling module expands 16 or 20 bit incoming data to 24 bit data
words and generates auxiliary clock signals needed for further
processing of the digital signal within the unit.
The quality of the resampled signal is directly dependent from its clock
source. Therefore a special low-jitter oscillator is installed which is fed
from its own low noise power supply build with discrete components.
After the resampling stage, an AES/EBU- (or S/P-DIF-) encoded PCM
signal is sent to the rear digital output, while the data contents and
auxiliary clocks are fed to the digital-to-analog converters.
The D/A converters comprises a digital filter, the volume control, the
stereophonic converters as such, as well as the analog output filters.
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.
The volume control is part of the 32 bit processing. So the level can be
attenuated by 10 bit = 60 dB – afterwards its hard to hear anything –
and there are still 22 bit left for D/A conversion. By this measure all
those should be satisfied who felt uncomfortable concerning bit
truncating whilst attenuating former 24 bit signals.

23

The internal frequency of the digital signal (and potential interference
therein) is very high in comparison with the useful analog frequencies.
Therefore, the subsequent analog low-pass filters have to meet less
severe requirements in terms of high-frequency roll-off and can
therefore be realized as "musical", discrete two-pole filters.
Without careful consideration of the analog output stages it wouldn't
have been possible to make the outstanding performance of the top­notch converter available at the analog outputs.
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.
It distinguishes itself by a wide dynamic range, minimum distortion and
high flexibility with regard to the achievable output level.
Within this amplifier, the output currents of the D/A converters are
transformed into voltages, while any interferences and processing
frequencies are completely removed.
Gain - i.e. output level – can be set by means of DIP switches over a
very wide range. An error amplifier caters for minimum DC offset.
From the D/A converters to the rear outputs the signal remains
completely balanced.
The unbalanced outputs are generated by differential amplifiers from the
balanced signal lines.
Only now follows the output driver stages, feeding the output signal to
the corresponding terminals at extremely low impedance.
The balanced and unbalanced outputs can be used at the same time,
since they are buffered individually. Output impedance for all outputs is
significantly lower than 1 Ohm.
Four muting relays in the output lines serve for (nearly) pop-free action
during powering on or off.

24

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.

DISMANTLING

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 the two lower screws on the front panel about 2-3 mm

4. the front panel can be tilt afterwards by some degrees

5. now lift the upper lid

6. make your personal jumper settings

Assemble the unit in reverse order

25

JUMPER SETTING DAC V850

26

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,
impedance 110 ohms according to
AES3-1992, Sensitivity 200mV @ Tnom/2

- 1 x RCA, unbalanced, impedance 75 ohms
according to IEC 958 resp. AES-3-id
Sensitivity 200mV @ Tnom/2

- 1 x optical, TOS-Link, acc. to EIAJ RC-5720

- 1 x USB, Style B, according to USB 1.1 / 2.0
transformer decoupled
Digital Input Formats: AES/EBU, S/P-DIF up to 24 bit
Input Sample Rates:

32, 44.1, 48, 88.2, 96, 176.4, 192 kHz

USB asynchron-mode supported !
Analog Frequency Range : 4 Hz ... 53 kHz (-0,5 dB)
THD (k2 … k10): -112 dBu
Dynamic Range (A-wtd): 120 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 Impedance: < 1 ohms
Unbal. Analog Outputs: 2 x RCA
Unbal. Analog Output Level: +15 / +9 / +6 / +3 / -3 dBu (selectable)
ex works set to +6 dBu,
Output Impedance: < 1 ohms
Mains Voltage : 230 V AC / 115 VAC max. 15 VA
Case , Back: Aluminium, Nextel coated
Front: Aluminium, milled, sanded, black or silver
anodized, laser engraved
Dimensions: 170 x 49 x 226 mm (B x H x D)

27

EC

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 video- und similar electronic devices
2001/95/EC General Product Safety Directive

For verification 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

2011/65/EU, RoHS directive
2012/19/EU, WEEE directive / Member No.: DE 26076388

This declaration is given under responsibility of:

Konstanz 28.07.2015 Fried Reim CEO

LAKE PEOPLE

electronic GmbH

Turmstrasse 7a
D-78467 Konstanz

Fon [phone]
Fax [phone]

28

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 – amongst others - why we
enjoy such a good reputation.
Despite all accurateness faults may occure which may derogate the
proper operation of your product.

In this case your unit is protected by a 5-year Warranty !

Needless to say that we will care for your product even after the
expiration of the warranty. If it is necessary please dispatch your item to:

Lake People electronic GmbH Fon [phone]
Turmstrasse 7a Fax [phone]
D-78467 Konstanz E-Mail [e-mail]

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 include a short description of the fault(s).
For the reshipment we need you correct address !!
Care for a safe packaging. Best is to use the original packaging.
Please keep in mind that we cannot accept collect freight.
We will grant a quick repair and quick return of the unit.
In case of a warranty repair we will reship free of charge.

Please denote here the serial number and the date of purchase:

Serial Number Date of Purchase