exaSound e20 User manual

e20 Digital to Analogue Converter
2 Channel PCM 32 bit / 384 kHz
DSD up to 256 Fs / 12.288 MHz
wner’s Manual (Windows)
PLEASE READ BEF RE PERATI N
REV. 1.0.3g – 03/2014

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Table of Contents
Table of Contents .......................................................................................................... 2
Safety Information ....................................................................................................... 4
Explanation of Graphical Symbols ............................................................................................................ 4
Important Safety Instructions ................................................................................................................... 4
Precautions ............................................................................................................................................... 4
Welcome .......................................................................................................................... 7
Quick Start ...................................................................................................................... 8
Package Contents ...................................................................................................................................... 8
Proper Device Placement .......................................................................................................................... 8
Front Panel Controls ................................................................................................................................. 8
Rear Panel Connectors .............................................................................................................................. 9
Infrared Remote Control ........................................................................................................................... 9
Features ......................................................................................................................... 10
Windows ASI Driver Advantages ...................................................................................................... 10
Automatic Sampling Rate Switching ................................................................................................... 10
Automatic PCM / DSD Switching ......................................................................................................... 10
Bit-perfect operation independent from the Windows volume control and mixer ........................... 10
Asynchronous USB mode eliminates jitter caused by the PC or the USB interface ........................... 10
Connectin and Powerin the e20 DAC............................................................... 11
Connecting the Digital Inputs ................................................................................................................. 11
Connecting the Line utputs .................................................................................................................. 11
Direct Connection to Analogue Power Amplifier .................................................................................... 11
Analogue Interconnect Recommendations ............................................................................................ 12
Connecting the Power Adapter............................................................................................................... 12
Surge Protectors ..................................................................................................................................... 12
Isolating the Cable TV Ground ................................................................................................................ 12
Remote Control Setup ............................................................................................... 13
Windows Drivers Setup ............................................................................................ 14

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PC System Requirements ........................................................................................................................ 14
Windows ASI Driver Installation ........................................................................................................... 14
Configuring Audio Player with ASI utput ........................................................................................... 16
Usin the e20 DAC ...................................................................................................... 17
Computer Playback Using the Asynchronous USB Input ........................................................................ 17
Volume Control ....................................................................................................................................... 18
Playing Music From SPDIF Sources ......................................................................................................... 19
Specifications ............................................................................................................... 20
Limited One Year Warranty .................................................................................... 23
Appendix A: J River Media Center Quick Start Guide ..................................... 25
Configure J River Media Center for Bit-perfect ASI Playback with the e20 DAC .................................. 30
Copyright © 2011-2014, exaSound Audio Design. All rights reserved.

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Safety Information
Explanation of Graphical Symbols
The lightning 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 Device.
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit
into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plug, receptacle, and the
point where it exits from the apparatus.
11. nly use attachments/accessories specified by the manufacturer.
12. Refer all servicing to qualified service personnel. Servicing is required when the device has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or
objects have fallen into the device, the device has been exposed to rain or moisture, does not
operate normally, or has been dropped.
Precautions
• Before connecting the AC power adapter cord to the device, make sure the voltage designation of
the power adapter corresponds to the local electrical supply. If you are unsure of your power
supply, contact your local power company. The acceptable power input range is AC ~ 100V-240V,
50/60Hz
• The device is still receiving power from the AC power source as long as it is connected to the wall
outlet, even if the device itself has been turned off.

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• Unplug the power adapter if you are not going to use the device for an extended period of time.
Hold the power adapter when unplugging. Do not pull on the cord.
• The power adapter is used as the mechanism for cutting off power, therefore make sure it is easy to
unplug.
• To ensure proper ventilation around this product, do not place this product on a sofa, bed or rug.
• High temperature will lead to abnormal operation of this device. Do not expose this device or
batteries to direct sunlight or near heating objects.
• When moving the device from a cold location to a warm one, or vice versa, moisture may condense
on components inside the device. Should this occur, the device may not operate properly. In such a
case please turn the device off for 1-2 hours to facilitate moisture evaporation.
WARNING:
T REDUCE THE RISK F FIRE R ELECTRIC SH CK, D N T EXP SE THIS DEVICE T RAIN R M ISTURE.
DANGER US HIGH V LTAGES MAY BE PRESENT INSIDE THE ENCL SURE. D N T PEN THE CABINET. REFER
SERVICING T QUALIFIED PERS NNEL NLY. THE DEVICE SHALL N T BE EXP SED T DRIPPING R
SPLASHING AND THAT N BJECTS FILLED WITH LIQUIDS, SUCH AS VASES SHALL BE PLACED N THE
APPARATUS.
WARNING:
CHANGES R M DIFICATI NS N T AUTH RIZED BY THE MANUFACTURER CAN INVALIDATE THE
C MPLIANCE T REGULATI NS AND CAUSE THE UNIT T BE N M RE SUITABLE T USE. THE
MANUFACTURER REFUSES EVERY RESP NSIBILITY REGARDING DAMAGES T PE PLE R THINGS DUE T THE
USE F A UNIT WHICH HAS BEEN SUBJECT T UNAUTH RIZED M DIFICATI NS R T MISUSE R T
MALFUNCTI N F A UNIT WHICH HAS BEEN SUBJECT T UNAUTH RIZED M DIFICATI NS.
FCC
Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Consult the dealer or an experienced radio/TV technician for help.
Any unauthorized changes or modifications to this equipment would void the user’s authority to
operate this device. This device complies with Part 15 of the FCC Rules. peration is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
This unit is compliant with the following CE regulations when an USB cable less than 3m is used:
CEI EN 55022:2009 Class B (Radiated Emissions), CEI EN 55024:1999, CEI EN 55024:A2/2003, CEI EN
55024:IS1/2008 (Radio Frequency Electromagnetic Fields, 50Hz Magnetic Field Immunity Test and
Electrostatic Discharges – ESD).