ESI UDJ6 User manual

High Quality 24-bit USB Audio Adapter
with 6 separate output channels
User’s Guide

ESI - Copyright © 2012
Revision 1, July 2012
www.esi-audio.com

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INDEX
1. Introduction..................................................................................................................................4
1.1 Features................................................................................................................................................................4
2. Installation....................................................................................................................................5
2.1 System Recommendation.....................................................................................................................................5
2.2 Hardware Installation...........................................................................................................................................5
2.3 Driver Installation................................................................................................................................................5
3. Control Panel................................................................................................................................8
4. Setting in Applications...............................................................................................................10
4.1 Windows Multimedia setup...............................................................................................................................10
4.2 Deckadance LE..................................................................................................................................................10
5. Specifications..............................................................................................................................11
6. General Information..................................................................................................................12

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1. Introduction
Congratulations on your purchase of the ESI UDJ6.
UDJ6 is a compact stylish USB audio interface, that provides 6 analog output channels including a
high quality stereo headphone output. It is very easy to use, small and powerful. With our excellent
driver support UDJ6 works perfect with all current DJ, recording and sequencer applications. The
USB connection makes installation extremly simple.
Just plug it in and it works!
1.1 Features
The UDJ6 hardware has these main features:
1. USB connection port (connects to your computer).
2. 4 analog outputs with RCA connectors for output channels 3 to 6.
3. 1/4" TRS headphone output for output channel 1 and 2.
The cool compact design allows you to take UDJ6 with you, wherever you go. As companion to a
notebook computer, you can take your DJ setup with you. UDJ6 is simple to install and even easier
to use. Working with samples, as a DJ or with software synthesizers has never been easier, with the
help from UDJ6. You can playback any signal through channel 1 / 2 (the headphone output) and at
the same time send out separate tracks and mixes through channels 3 / 4 and 5 / 6. The hardware
works perfectly with important ASIO compatible DJ and mixing applications.

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2. Installation
2.1 System Recommendation
UDJ6 is not simply a standard digital audio interface card, but a high-resolution device capable of
advanced processing of audio content. Even though UDJ6 is built to have low-CPU resource
dependability, system specifications play a key part in the UDJ6s performance. Systems with more
advanced components are generally recommended.
Minimum System Requirements
PC
- Intel Pentium II 300MHz CPU or comparable AMD CPU (or equivalent) – we recommend at
least a Pentium III CPU with 600 MHz
- Windows XP or Windows Vista / 7 (32- and 64-bit) operating system
- 1 available USB port
- at least 64MB RAM
- high quality audio software with ASIO support recommended
Mac
- Power Macintosh G3 or higher
- 1 available USB port
- at least 64MB RAM
- Mac OS X 10.4 or higher
2.2 Hardware Installation
UDJ6 is simply connected to an available USB port of your computer. A separate power supply is
not required, as UDJ6 is a USB powered device. Simply install the hardware by plugging it into
your computer with the supplied cable.
USB port of a computer
2.3 Driver Installation
After the connection of UDJ6, the operating system automatically detects it as a new hardware
device. Modern operating systems like Windows XP, Windows Vista / 7 or Mac OS X usually
detect the hardware directly and are installing the correct USB audio drivers automatically.
You can use UDJ6 already now in typical consumer audio applications that do not need special
professional ASIO driver support. Under Windows XP this could be for example programs used for

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DVD playback or more simple DJ applications that don’t require ASIO. Under Mac OS X this
could be applications like Garageband. Please note that our special driver is also required if you are
using higher sample rates than 44.1kHz.
Installation under Windows XP
Unplug the device before you start the installer if it is already connected. Then launch setup.exe
from the UDJ6/Windows folder of the included driver CD or from a download of a recent driver
from our website.
You will now see a dialog as shown on the left picture below. Click Next. You can define the target
directory for the installation now. Confirm it with Next.
The installer now informs you that the driver installation will start as shown on the left picture
below. Confirm this with Next. During the following process you will see a dialog box once or
several times that informs you that the driver software has not passed Windows Logo testing. Please
be assured that our drivers have been tested in various different ways and are OK to be used.
Confirm any such dialog with Continue Anyway.
You will now be prompted to connect the hardware on the next dialog that is shown below on the
left. Plug in UDJ6. Do not click Next yet. During the driver installation, Windows might again

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prompt you to confirm the Windows Logo testing dialog once or several times with Continue
Anway before the driver installation is finalized.
You can now finally click Next on the ESI UDJ6 Audio Driver Setup dialog. The installation is now
finished. To confirm this, please check if the ESI icon is displayed in the taskbar notification area as
shown below. Sometimes a reboot is required.
If yes, the driver installation has been completed successfully.
Installation under Windows Vista / 7
Unplug the device before you start the installer if it is already connected. Then launch setup.exe
from the UDJ6/Windows folder of the included driver CD or from a download of a recent driver
from our website.
When launching the installation, Windows Vista / 7 might prompt a security message. Make sure to
allow the installation. You will then see a dialog as shown on the left picture below. Click Next.
You can define the target directory for the installation now. Confirm it with Next.

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The installer now informs you that the driver installation will start as shown on the left picture
below. Confirm this with Next. During the following process you might see a Windows Security
dialog box once or several times that asks you for confirmation to install the driver software.
Confirm any such dialog with Install.
You will now be prompted to connect the hardware on the next dialog that is shown below on the
left. Plug in UDJ6. Do not click Next yet. Instead, wait a few seconds for the automatic device
driver installation. You can monitor this in the task notification area where Windows Vista / 7
informs that the driver is installed via a bubble message box.
You can now finally click Next on the ESI UDJ6 Audio Driver Setup dialog. The installation is now
finished. To confirm this, please check if the ESI icon is displayed in the taskbar notification area as
shown below. Sometimes a reboot is required.
If yes, the driver installation has been completed successfully.
3. Control Panel
This chapter describes the UDJ6 Control Panel under Windows. Under Mac OS X no special
Control Panel is required.
To open the control panel double click on the ESI icon in the task notification
area. The following dialog will appear:

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The Output section controls the playback volume of each playback signal from your audio
applications.
There are eight individual faders for each playback channel, divided into the 1/2, 3/4 and 5/6
sections. The Mbutton under each channel pair allows you to mute playback for that specific
channel pair. A colored Mbutton indicates that the mute function is enabled. When disabled, the
button is gray.
The Master section allows you to control the playback volume of the main master signal.
SampleRate mode selection
Under Config > SampleRate, you can select
the playback mode and sample rate. By
default, playback with up to 6 channels and
44.1kHz is selected. You can change this to 48
kHz and you can select 96kHz playback with
maximum 2 simultaneous channels.
Please note that you must change these
settings before launching any audio
application accessing UDJ6. You cannot change these settings while any software accesses the
hardware, so you need to set up your requirements before you launch your software.
Latency setting
With the Latency menu entry under Config, you can change
the latency of the driver of UDJ6. Depending on the typical
application (e.g. for playback of software synthesizers) a
smaller latency is an advantage. At the same time, the best
latency setting indirectly depends on the performance of
your system. For most default applications, a typical
latency buffer size between 128 and 256 is standard. On a
slow system, 512 is an option.

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Please note that the latency has to be setup before launching any audio application.
4. Setting in Applications
This chapter contains basic configuration examples for some popular software applications. Please
also refer to the manual of the audio software you use for detailed information.
4.1 Windows Multimedia setup
The Windows Multimedia setup is required if you want to use your UDJ6 as the main sound device
for Windows multimedia applications. Go to My Computer-> Control Panel -> Sounds and Audio
Device Properties -> Audio. Select the UDJ6 entry as your playback device to make sure that all
standard signals are played via the UDJ6 hardware.
4.2 Deckadance LE
UDJ6 comes with a license of Deckadance LE from Image-Line Software. The unique 20 digit
serial number is listed on a separate postcard. The software itself must be downloaded from the
Image-Line website. This ensures you receive the latest version. Keep the serial number postcard in
a safe & confidential place.
To download the software installer you need access to a computer with an internet connection You
do not need internet access to install or run the program, you can download the program on one
computer and install it on another without internet access.
To download the software installer, please register using the unique 20-digit serial number at:
http://serialregistration.image-line.com - note: if you should have an Image-Line online account
already, please login first at http://login.image-line.com
Please enter all information carefully. Fields marked with a red asterisk must be completed. Pay
attention to enter the correct email address, as your login information will be sent to this email
address. We suggest writing the email address you used on the postcard paper for safekeeping along
with the serial number. Once completed an email with login information will be sent to your email
address. After successful registration you can click the login link.
Once logged-in at your on-line Image-Line account, your product will be listed in the My Licenses
section down the left-hand side of your Account page http://support.image-
line.com/member/profile.php - click on the product title to see the specific product download &
installation instructions. Don’t forget you need to register your serial number before the product
will be shown.
If you experience problems registering please create a support ticket at http://ticketing.image-
line.com

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5. Specifications
1. Interface
- USB spec version 1.1
- USB audio class spec version 1.0
- fully compatible to USB 2.0 host controllers
2. Output Type
- in total analog 6 channel output
- headphone output (1/4" TRS) for channel 1 / 2
- 4 line level outputs for channels 3, 4, 5 and 6
3. Analog Output Level
- -10dBV unbalanced (line outputs)
- +0.5dBV maximum
4. Analog Output Impedance
- 100 Ohm
5. Sampling Rates / Resolution
- 6 channel playback at 44.1 kHz and at 48 kHz (24-bit resolution)
- 2 channel playback at up to 96 kHz (24-bit resolution)
6. D/A Converter
1) dynamic range:
112 dB A-weighted (typical)
2) frequency response:
20 ~ 22 kHz (@ fs=48 kHz)
3) resolution:
24 bit
4) THD+N:
-94dB
7. Headphone Amplifier
1) Output Power:
60mW maximum
2) Signal to Noise Ratio:
110dB (typical)
3) (THD+N)/S:
-70dB, 0.03% (typical)
8. Power
- USB bus powered
- 250mA maximum
9. Compatibility
- supports Windows XP and Windows Vista / 7 with ASIO 2.0, GSIF, MME, WDM
and DirectSound
- supports Mac OS X (10.4 and above) via the native CoreAudio USB audio
driver from Apple (no driver installation required)
- works with all major industry standard DJ playback applications
11. Software
- includes Deckadance LE (from Image-Line Software) license for PC & Mac
- internet connection required to use software

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6. General Information
Trademarks
ESI, UDJ and UDJ6 are trademarks of ESI Audiotechnik GmbH. Windows is a trademark of
Microsoft Corporation. Other product and brand names are trademarks or registered trademarks of
their respective companies.
The FCC and CE Regulation Warning
This device complies with Part 15 of the FCC Rules. Operation 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. Caution : Any
changes or modifications in construction of this device with are not expressly approved by the party
responsible for compliance, could void the user's authority to operate equipment.
Note: 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 the equipment is 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 correct the interference at his own expense. If
necessary, consult an experienced radio/television technician for additional suggestions.
Correspondence
For technical support inquiries, contact your nearest dealer, local distributor or ESI support online at
www.esi-audio.com. Please also check our extensive Knowledge Base with Frequently Asked
Questions, installation videos and technical details about our products in the support section of our
website.
Disclaimer
All features and specifications subject to change without notice.
Parts of this manual are continually being updated. Please check our web site www.esi-audio.com
occasionally for the most recent update information.