Emil Scholz ESD-6300 User manual

ESD-6300
ESD-1862
ESD-1704
LINE
OUT
I2S/RJ/LJ
LVDS
IN
AUX S/PDIF
Digital
Interface
20/24-bit 96 kHz USB multibit D/A convertor
H/W V1.0 F/W V1.0 ENG © Emil Scholz GmbH, 2014
Designed in Germany
Assembled in HK
USER’S MANUAL

Contents
ESD-6300/ESD-1862/ESD-1704 User’s Manual
2
Warnings................................................................................................................................
• FCC warning.........................................................................................................................
• Copyright Notice...................................................................................................................
Servicing................................................................................................................................
Overview................................................................................................................................
Features.................................................................................................................................
Connections..........................................................................................................................
Front Panel............................................................................................................................
Rear Panel..............................................................................................................................
Quick Start.............................................................................................................................
Power On/Off.........................................................................................................................
Input Menu.............................................................................................................................
• Coaxial and Optical Inputs....................................................................................................
• ADAT Input............................................................................................................................
• USB Input..............................................................................................................................
• EXTERNAL Input..................................................................................................................
• AUX Input..............................................................................................................................
Settings Menu........................................................................................................................
• Volume..................................................................................................................................
• Channel Mode.......................................................................................................................
• Phase Mode..........................................................................................................................
• Digital Filter Roll-Off..............................................................................................................
• Backlit....................................................................................................................................
• Aux Level..............................................................................................................................
• Out Monitor..........................................................................................................................
Settings Table.......................................................................................................................
EXT Input Pinout..................................................................................................................
Upgrade.................................................................................................................................
Factory Reset.......................................................................................................................
Specification.........................................................................................................................
Warranty................................................................................................................................
3
3
3
3
4
4
5
6
6
6
7
7
7
7
8
8
8
9
9
9
9
9
9
9
9
10
10
11
11
12
12
12
• ADAT Channel......................................................................................................................

Warnings
FCC warning
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the
FCC rules. These limits are designed to provide reasonable protection against harmful interference when operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to take
whatever measures necessary to correct the interference at his own expense.
Copyright Notice
The Emil Scholz ESD DACs is a computer-based devices, and as such contains and uses software. This software, and all
related documentation, including this User's Manual contain proprietary information which is protected by copyright laws.
No part of the software and its related documentation may be copied, transferred, or modified. You may not modify, adapt,
translate, lease, distribute, resell for profit or create derivative works based on the software and its related documentation
or any part thereof without prior written consent from Emil Scholz GmbH. All rights are reserved.
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH
WIDE BLADE OF PLUG TO WIDE SLOT,
FULLY INSERT.
ATTENTION:
POUR ÉVITER LES CHOCS ÉLECTRIQUES,
INTRODUIRE LA LAME LA PLUS LARGE DE
LA FICHE DANS LA BORNE CORRESPONDANTE
DE LA PRISE ET POUSSER
JUSQU' AU FOND.
The lightening flash with arrowhead symbol,
within an 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
maintenance(servicing) instructions in the
literature accompanying the appliance.
“WARNING”
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
The appliance should be serviced by qualified service personnel when:
A. The power supply cord or the plug has been damaged or
B. Objects have fallen, or liquid has been spilled into the appliance or
C. The appliance has been exposed to rain or
D. The appliance does not appear to operate normally or exhibits a marked changed in performance or
E. The appliance has been dropped, or the enclosure damaged
The user should not attempt to service the appliance beyond that described in the operating instructions.
All other servicing should be referred to qualified service personnel only.
Servicing
ESD-6300/ESD-1862/ESD-1704 User’s Manual
3

Overview
Emil Scholz ESD
Burr Brown Analog Devices. These are widely known and recognized as reference of DA audio converter chips
PCM63P-K, AD1862N-J and PCM1704U-K.
Emil Scholz ESD digital to analog converter series includes three basic devices: ESD-6300, ESD-1862 and ESD-1704.
All the devices are functionally same and have same main board and software.
Two additional module boards can be installed on the main board to modify the device type. The first module allows
adding ADAT Type I/II interface support option and can be installed either during assembling of the device or during its
upgrade by the customer or with our assistance.
The second module is a daughter board with DA converters and necessary components. When a definite type of DA
daughter board is installed software automatically defines its type and makes all necessary modifications in the device
performance.
Now three versions of the daughter boards are available, and there are three models of the converters accordingly -
based on Burr Brown PCM63P-K (20-bit), Analog Devices AD1862N-J (20-bit) and Burr Brown PCM1704U-K (24-bit).
As the DAC modules are replaceable, you can upgrade your 20-bit version into an advanced 24-bit model on the basis
of PCM1704 any time at your discretion.
series digital-to-analog converters are based on legendary classical multi-bit converters produced by
Features
• Home and studio usage
• Highest grade matched DACs
• Classic multibit reference sound
• Low jitter recovery technology
• Miniature design
• Easy control and input select - one touch push & turn
• Quick view of settings and parameters
• ADAT support (optional or preinstalled board)
• High perfomance low ripple DC/DC
• Galvanic isolation between digital and analog parts
• External 6-lines mini HDMI LVDS input including emphasis and error information
• Stereo, mono, left, right channel mode control
• Normal, inverted both, inverted left or inverted right channel phase mode
• Sharp and slow roll-off DF mode control
• Automatic LCD backlit off
• Auxiliary 3.5mm input for additional audio source
• Optical and coaxial S/PDIF inputs
• USB 2.0 24-bit/96kHz support
• Ultra-low noise headphone and output stage
• Power failure protection
• No capacitors in analog path
• Optional 24-bit PCM1704U-K upgrade board for basic models
• Optional ADAT interface upgrade board for basic models
• Thru mode from optical input to USB
Thank you for purchasing Emil Scholz multibit DAC.Please read this manual before operating
multibit DAC.Store the manual in a safe, easily accessible place for future reference.
Emil Scholz
ESD-6300/ESD-1862/ESD-1704 User’s Manual
4

ESD-6300/ESD-1862/ESD-1704 User’s Manual
5
Designed in Germany
Assembled in HK
DVD, CD Player or ADAT
DVD or CD Player PC or MAC
Amplifier and/or Acoustics
Audio
Source
Optional I2S/LJ/RJ Source
LVDS trasmitter module required
Headphones
Digital Line
Audio Line
Thru Mode
Connections

ESD-6300/ESD-1862/ESD-1704 User’s Manual
6
1. HEADPHONES OUTPUT. Low noise output for 16-32 Ohms studio or consumer headphones.
2. LCD DISPLAY. Displays all necessary information such as selected input, settings and control.
2. CONTROL KNOB. Multifunctional turn and push encoder for input select and settings access.
Front Panel
Rear Panel
1 3
2
Designed in Germany
Assembled in HK
222822285
4
22 22272622282229222822210 222822211
4. DC INPUT. For connection of an external power supply. Use only Emil Scholz recommended power supply unit.
5. S/PDIF INPUT. RCA 75 Ohms S/PDIF coaxial input.
6. OPTICAL INPUT. Toslink S/PDIF input. Also can be used for ADAT 8-channel sources.
7. I2S INPUT. Multimode LVDS I2S input. Accepts all formats such as 16-24 bit I2S, 16-24 bit left and right justified sources.
8. USB 2.0 input/output.
9. AUX INPUT. Provides -10dBV unbalanced input signal. Maximum level is +6dBV.
10. LEFT OUTPUT. -10dBV left audio output. The maximum level is +6dBV.
11. RIGHT OUTPUT. -10dBV right audio output. The maximum level is +6dBV.
Quick Start
1. Connect the power supply.
2. Connect S/PDIF coaxial or optical output of digital source to the appropriate S/PDIF or TOSLINK connector.
3. Connect a pair of headphones to the front panel HEADPHONES output.
4. Connect a power amplifier or acoustic systems to LEFT and RIGHT RCA outputs.
5. Press the multifunctional knob to power on (see page 7 for details).
6. Turn the knob and select COAXIAL or TOSLINK input.
7. Press the knob to enter settings and adjust the headphones level.

ESD-6300/ESD-1862/ESD-1704 User’s Manual
7
Power On/Off
Emil Scholz
ESD-6300
Press the multifunctional encoder knob. The model number ESD-6300, ESD-1862 or ESD-1704 will be displayed.
If your DAC is equipped with an ADAT module the following message will be displayed. Press and hold knob to power off.
Emil Scholz
ESD-6300 ADAT
Input Menu
COAX 44.1kHz LKD
ST NP SH CON ---
1 2 3
456 7 8
1. Selected input: coaxial ( ), optical ( ).
2. Incoming sample rate:
3. Error/lock indication: error occured ( ), locked ( ).
4. Channel mode: stereo ( ), mono ( ), left only ( ), right only ( ), channel swap ( ).
5. Phase mode: normal ( ), inverted both ( ), inverted left ( ), inverted right ( ).
6. Digital filter Roll-Off mode: slow ( ), sharp ( ).
7. Input format: consumer ( ), pofessional ( ).
9. Emphasis: no empasis ( ), empasis on ( ).
COAX OPT
8.00kHz 16.0kHz 32.0kHz 44.1kHz 48.0kHz 88.2kHz 96kHz
ERR LKD
COAXIAL and OPTICAL (1, 2) Inputs only
ST MN LO RO SW
EMP
NP IB IL IR
SL SH
CON PRO
, , , , , , .
After power on the DAC will indicate last used input, channel, phase, filter mode and other settings.
Turn the multifunctional encoder knob left or right and select a required input.
ADAT 48.0kHz LKD
ST NP SH CH1/2
1 2 3
456 7
1. Selected input: ADAT ( ).
2. Incoming sample rate:
3. Error/lock indication: error occured ( ), locked ( ).
4. Channel mode: stereo ( ), mono ( ), left only ( ), right only ( ), channel swap ( ).
5. Phase mode: normal ( ), inverted both ( ), inverted left ( ), inverted right ( ).
6. Digital filter Roll-Off mode: slow ( ), sharp ( ).
7. ADAT channel:
If ADAT board is not installed “No ADAT Board” message will be displayed. Settings menu of this input will
not be available. C for optional ADAT module purchase.ontact Emil Scholz
ADAT
ERR LKD
ADAT (3) Input
ST MN LO RO SW
NP IB IL IR
SL SH
1/2 3/4 5/6 7/8
, , , .
44.1kHz 48.0kHz
, .
ADAT
No ADAT Board!
OR
Power Off...

ESD-6300/ESD-1862/ESD-1704 User’s Manual
8
EXT 96.0kHz LKD
ST NP SH 16I ---
1 2 3
456 7 8
1. Selected input: I2S ( ).
2. Incoming sample rate:
3. Error/lock indication: error occured ( ), locked ( ).
4. Channel mode: stereo ( ), mono ( ), left only ( ), right only ( ), channel swap ( ).
5. Phase mode: normal ( ), inverted both ( ), inverted left ( ), inverted right ( ).
6. Digital filter Roll-Off mode: slow ( ), sharp ( ).
7. Input format: 16-bit RJ ( ), 20-bit RJ ( ), 24-bit RJ ( ), 24-bit LJ ( ), 16-bit I2S ( ), 24-bit I2S ( ),
auto mode ( ).
8. Emphasis: no empasis ( ), empasis on ( ).
EXT
8.00kHz 16.0kHz 32.0kHz 44.1kHz 48.0kHz 88.2kHz 96kHz
ERR LKD
EXTERNAL (I2S, 5) Input
ST MN LO RO SW
EMP
NP IB IL IR
SL SH
16R 20R
, , , , , , .
24R 24L 16I 24I
AUT
Input Menu
USB 96.0kHz LKD
ST NP SH VOL:100
1 2 3
456 7
1. Selected input: USB ( ).
2. Incoming sample rate:
3. Error/lock indication: error occured ( ), locked ( ).
4. Channel mode: stereo ( ), mono ( ), left only ( ), right only ( ), channel swap ( ).
5. Phase mode: normal ( ), inverted both ( ), inverted left ( ), inverted right ( ).
6. Digital filter Roll-Off mode: slow ( ), sharp ( ).
7. Output volume level.
USB
ERR LKD
USB (4) Input
ST MN LO RO SW
NP IB IL IR
SL SH
8.00kHz 16.0kHz 32.0kHz 44.1kHz 48.0kHz 88.2kHz 96kHz
, , , , , , .
1 2 3
456
1. Selected input: AUX ( ).
2. Left channel level.
3. Left channel level in dB.
4. Channel mode: stereo ( ), mono ( ). Other channel functions are unavailable in this mode.
5. Right channel level.
6. Right channel level in dB.
AUX
AUX (6) Input
ST MN
AUX dBL -0.5
ST dBR -0.5

ESD-6300/ESD-1862/ESD-1704 User’s Manual
9
Settings Menu
Volume (1)
Push the encoder knob to access the settings menu. The first setting is volume control. Turn the knob and adjust the
volume as you need. Press the knob for the next step. If the knob has not been pressed or turned the display will return
to the input menu in a few seconds.
Volume:
000 MUTE
Channel Mode (2)
Turn the knob and select the required mode - mono, stereo, left, right or swapped. Press the knob for the next step.
If the knob has not been pressed or turned the display will return to the input menu in a few seconds. Only stereo and
mono mode if AUX input is selected.
Channel Mode:
Stereo [ST]
Phase Mode (3)
Turn the knob and select the required mode - normal, inverted left, inverted right or inverted both. If the knob has not
been pressed or turned the display will return to the input menu in a few seconds. The function is not available if AUX
input is selected.
Phase Mode:
Normal [NP]
Digital Filter Roll-Off (4)
Turn the knob and select the required DF mode - sharp or slow. Press the knob for the next step. If the knob has not
been pressed or turned the display will return to the input menu in a few seconds. The function is not available if AUX
input is selected.
DF Roll-Off:
Sharp [SH]
Backlit (6)
Turn the knob and select constant LCD backlit or auto off backlit mode (around 1 min). Press the knob for the next
step. If the knob has not been pressed or turned the display will return to the input menu in a few seconds. To turn on
the backlit in auto off mode press the knob. The backlit will turn on. Press the knob to enter the settings. By turning the
knob the backlit will turn on and the next or previous input will be selected depending on the rotation direction.
Backlit:
ON
Aux Level (7)
Aux input level adjust Press the knob for the next step.
Available only if AUX is selected.
±10dB in 1dB steps. Turn the knob to adjust input level
AUX dBL -0.5
+00 dBR -0.5
Channel Mode:
Mono [MN]
Channel Mode:
Left Only [LO]
Channel Mode:
Right Only [RO]
Channel Mode:
Swap [SW]
Phase Mode:
Inv. Both [IB]
Phase Mode:
Inv. Left [IL]
Phase Mode:
Inv. Right [IR]
DF Roll-Off:
Slow [SL]
Backlit:
Auto OFF
Volume:
100 MAX
ADAT Channel (5)
Turn the knob and select the required ADAT channel pair. Press the knob for the next step. If the knob has not
been pressed or turned the display will return to the input menu in a few seconds. The function is available only if ADAT
input is selected.
ADAT Channel:
1>L 2>R
ADAT Channel:
3>L 4>R
ADAT Channel:
5>L 6>R
ADAT Channel:
7>L 8>R

ESD-6300/ESD-1862/ESD-1704 User’s Manual
10
INPUT VOLUME CHANNEL MODE PHASE MODE DF ROLL-OFF BACKLIT OUT MONITOR
COAX 000-100 STEREO
MONO
LEFT ONLY
RIGHT ONLY
SWAP
NORMAL
INV. BOTH
INV. LEFT
INV. RIGHT
SHARP
SLOW
ON
AUTO OFF
YES
OPT 000-100 STEREO
MONO
LEFT ONLY
RIGHT ONLY
SWAP
NORMAL
INV. BOTH
INV. LEFT
INV. RIGHT
SHARP
SLOW
ON
AUTO OFF
YES
ADAT 000-100 STEREO
MONO
LEFT ONLY
RIGHT ONLY
SWAP
NORMAL
INV. BOTH
INV. LEFT
INV. RIGHT
SHARP
SLOW
ON
AUTO OFF
YES
USB 000-100 STEREO
MONO
LEFT ONLY
RIGHT ONLY
SWAP
NORMAL
INV. BOTH
INV. LEFT
INV. RIGHT
SHARP
SLOW
ON
AUTO OFF
YES
EXT 000-100 STEREO
MONO
LEFT ONLY
RIGHT ONLY
SWAP
NORMAL
INV. BOTH
INV. LEFT
INV. RIGHT
SHARP
SLOW
ON
AUTO OFF
YES
AUX 000-100 STEREO
MONO
UNAVAILABLE UNAVAILABLE ON
AUTO OFF
NO
Settings Table
EXT Input Pinout
1. SCLK IN+
2. SCLK GND
3. SCLK IN-
4. MCK IN+
5. MCK GND
AH=Active High. Internal tie to GND. Can be unconnected.
11. SDATA GND
12. SDATA IN-
13. NC
14. NC
15. EMPHASIS IN (AH)
16. ERROR IN (AH)
17. GND
18. +5VD
19. AUTO DETECT
SHIELD DC COUPLED GND
6. MCK IN-
7. LRCK IN+
8. LRCK GND
9. LRCK IN-
10. SDATA IN+
The DAC uses an LVDS interface for external audio sources connection. Supported formats: 16-bit RJ, 20-bit RJ, 24-bit
RJ, 24-bit LJ, 16-bit I2S, 24-bit I2S. Automatic select can also be supported.
Please see DGO-I2S LVDS optional transmitter board manual for more detailed information and reference.
Out Monitor (8)
Output level monitor of selected source. Press the knob to return to input select menu. The function is not available
if AUX is selected. There is no automatic return from this window to the Input Menu.
OUT dBL -0.5
MON dBR -0.5

ESD-6300/ESD-1862/ESD-1704 User’s Manual
11
Upgrade
There are two ways to upgrade your DAC - changing the DAC PCB to a higher 24-bit version and adding an optional
ADAT board. To upgrade your DAC or add an optional ADAT board remove the screws indicated on the picture 1 and 2
with a screw driver.
Carefully pull the top part of the case. Use a flat object to carefully pull up the DAC PCB that is located on the picture 3.
Install the new PCB and softly push it down on the main board.
To add an ADAT PCB just install it as per picture 3. Put the top part of the case back and assemble it with the screws.
Turn on the DAC. The display will show its current model and presence of ADAT board inside. Note that opening the case
will cancel your 90 days warranty period.
Designed in Germany
Assembled in HK
PCM1704
DAC MODULE
ADAT
MODULE
PCM1704
1
23
Factory Reset
To return your DAC to factory settings push and hold the knob and plug in the power supply. The display will show the
current hardware and software version and the device will return to the factory settings as per the table below.
VOLUME 085
CHANNEL MODE STEREO
PHASE MODE NORMAL PHASE
DF ROLL-OFF SHARP
BACKLIT ON
AUX IN 0dB

ESD-6300/ESD-1862/ESD-1704 User’s Manual
12
Inputs
• S/PDIF coaxial RCA @ 75 Ohms 8-96kHz, S/PDIF Toslink 8-96kHz
• ADAT optical 16/20/24-bit 44.1/48kHz Type I/II
• EXT: 8-96kHz, 16/20/24-bit I2S/LJ/RJ/AUTO, x256/384Fs, mini HDMI 6-line LVDS
• USB: 2.0 8/16/32/44.1/48/88.2/96kHz ±5%
•
Outputs
• RCA: -10dBV, +6dBV max, ultra low impedance
• Headphones, 3.5mm jack: 250mW @ 30 Ohms
Control
• Multifunctional pushbutton encoder
• Highcontrast 2x16 LCD with backlit
Technical charachteristics
• DACs: Burr Brown PCM63P-K/PCM1704U-K, Analog Devices AD1862N-J
• DAC word lenght: 20-bit (ESD-6300, ESD-1862), 24-bit (ESD-1704)
• DAC quantity: 2, left/right channel
• Frequency response: 5-22kHz ±0.1dB
• Sample rates: 8/16/32/44.1/48/88.2/96kHz ±10%
• Digital Filter word lenght: 24-bit
• Input word lenght: 16/18/20/24-bit, all inputs
• THD+N: -92dB (ESD-6300), -118dB (ESD-1704), -96dB (ESD-1862)
• Dynamic range: 105dB (ESD-6300), 112dB (ESD-1704), 100dB (ESD-1862)
• Interchannel separation: -120dB
• Power supply: 5VDC @ 650mA
• Dimensions (W x H x D): 96 x 34 x 140
• Weight: 450g
AUX: ±10dB adjusted unbalanced stereo, 1dB step, 3.5mm jack
Specification
Warranty
All Emil Scholz products are covered by warranty for a minimum of 90 days.
or
Emil Scholz, GmbH warrants products
manufactured and sold by Emil Scholz to be free from defects in materials and workmanship for the shown above.
To maintain this limited warranty, the product must be operated, calibrated, and maintained in accordance with the Operation
and Maintenance Manual supplied with the product. Abuse, mechanical damage, alteration, or repairs not made in accordance
with the Operation and Maintenance Manual void the Emil Scholz Warranty.
The obligation of Emil Scholz under this limited warranty is limited to the repair or replacement of components deemed by
the Emil Scholz Technical Support Center to have been defective under the scope of this Warranty.
To receive consideration for warranty repair or replacement, the product must be returned to a Emil Scholz Authorized
Service Partner with transportation and shipping charges prepaid.
If the product is being returned to Emil Scholz, it is necessary to obtain a return authorization number from Emil Scholz
prior to shipment.
This limited warranty is expressly in lieu of any and all representations, express or implied, including but not limited to the
warranty of fitness for a particular purpose. Emil Scholz will not be liable for loss or damage of any kind connected to the
use of its products or failure of its products to function or operate properly.
For more information on our Warranty, please contact your appropriate Emil Scholz distributor representative.