ESI U46DJ User manual

U46DJ ESI
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INDEX
1. Introduction..................................................................................................................................2
1.1. What’s in the box ..................................................................................................................2
1.2. Key Features..........................................................................................................................3
2. Description of U46DJ...................................................................................................................4
2.1. Front Panel ............................................................................................................................4
2.2. Rear Panel..............................................................................................................................5
2.3. Connection with external devices..........................................................................................6
3. Hardware Installation .................................................................................................................7
3.1. Minimum system requirements.............................................................................................7
3.2. Installation.............................................................................................................................7
4. Driver Installation........................................................................................................................8
5. U46DJ Control Panel.................................................................................................................12
5.1. Pull Down Menu .................................................................................................................12
5.2. Input Section........................................................................................................................14
5.3. Output Section.....................................................................................................................15
6. Applications Setup.....................................................................................................................16
6.1. Windows Multimedia setup.................................................................................................16
6.2. Latency setting on ASIO applications.................................................................................17
6.3. Tracktion .............................................................................................................................18
6.4. Cubase and Nuendo............................................................................................................19
6.5. Wavelab...............................................................................................................................20
6.6. BPM Studio.........................................................................................................................21
7. Technical Specifications ............................................................................................................22
END USER WARRANTY ............................................................................................................24
V.1 July 2005

U46DJ ESI
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1. Introduction
Thank you for choosing the ESI U46DJ.
U46DJ is an ideal mobile recording interface for both laptops and desktop computers. It offers a 4-
in 6-out multi-channel audio interface with a separate Mix output. 2 Phono inputs make the unit a
perfect portable solution for digital DJs, compatible with all current major DJ software applications.
U46DJ’s flexible 4 inputs provide you to record from a variety of sources. There are 2 Phono inputs,
2 stereo Line inputs, and a MIC input with +48V phantom power and Hi-Z (E.Guitar) input.
6 line level analog outputs allow you to connect various external devices or to a 5.1 DVD surround
connection. A separate Mix output and headphone output allows you to monitor your inputs and
outputs directly. U46DJ offers all these features in a rugged, compact package that can travel with
you anywhere.
Even if you are an experienced professional, please take some time to read through this user manual
and familiarize yourself with the U46DJ’s features and operation. You may also want to refer to
your audio software’s documentation to better understand how the U46DJ’s features are integrated
with your program. Your experience and enjoyment of your U46DJ will be greatly enhanced by a
good working knowledge of your audio software.
1.1. What’s in the box
U46DJ USB audio interface
Driver CD with UAT bundle software
Tracktion Software CD
User manual
USB cable

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1.2. Key Features
- 4-in 6-out multi purpose USB audio interface
- 2 Phono inputs and 4 Line inputs
- MIC inputs with gain control
- +48V phantom power for condenser Microphone
- Direct instrument input for E.guitars (Hi-Z) with gain control
- 6 line level analog outputs with separate Mix outputs
- Headphone out with level control
- 4 channel recording and 6 channel playback at the same time – Full Duplex
- 4-in 6-out at 44.1 kHz, 4-in 4-out at 48 kHz.
- WDM, MME, ASIO, and DirectSound support
- Ultimate Audio tools software package with the full version of Tracktion

U46DJ ESI
2. Description of U46DJ
2.1. Front Panel
(1) Channel 1/2 input connector
- Input source (MIC/LINE/PHONO) selector: This is where you select input sources of channel
1/2.
- MIC input connector: Connect your Microphone to this Balanced 1/4” connector.
- +48V Phantom power switch: Supply +48V DC phantom power to input channels 1/2
simultaneously by pressing the button
- Gain control for MIC input: Control input level of microphone
(2) Channel 3/4 input connector
- Input source (Hi-Z/LINE/PHONO) selector: This is where you select input sources of channel
3/4.
- Hi-Z input connector: Connect an electric guitar or bass guitar to this unbalanced 1/4”
connector. Only unbalanced 1/4” phone jack connection is available for this setting.
- Gain control for Hi-Z input: Control input level of E.guitar
(3) Headphone output with Headphone volume control: Monitor all input sources and output
sources through the headphone output. Output level can be adjusted with the control knob.
(4) Power Switch
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2.2. Rear Panel
(1) External Power supply connector:
If you use a microphone that requires phantom power, especially with a laptop computer,
it’s strongly recommended to use a DC +9V/500mA adapter (not included). When you turn
on U46DJ or when you turn on/off phantom power, the current peak level might go over
500mA.
(2) USB connector: Connects the USB cable to the computer.
(3) Input 1~4: The turntable inputs and line level inputs share same connectors. The RCA turntable
inputs feed an RIAA equalized preamp designed to accept moving magnet type phono cartridges.
(4) Output 1~6: You can use these outputs to connect to various external devices or to a 5.1 DVD
surround connection.
(5) Mix output: You can monitor all input sources and output sources through the Mix output.
Usually, you can use Mix out to connect to powered monitor speakers.
(6) Ground lug: When you use a turn-table, Connect the ground lead from your turntable to the
ground lug to help prevent hum.
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U46DJ ESI
2.3. Connection with external devices
U46DJ is a piece of multimedia digital audio equipment that allows various uses. This means there
are many different ways to connect other devices to the U46DJ. The below figure describes which
devices can be connected with U46DJ.
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3. Hardware Installation
3.1. Minimum system requirements
Intel Pentium III 600MHz CPU or equivalent AMD CPU
256MB of RAM
Direct X 8.1 or higher
Microsoft Windows®XP
One available USB port
3.2. Installation
Before driver installation, please locate your original Windows CD, as you may need it during
installation. If you have a motherboard with a new chipset, please install the recent patches
provided by your motherboard or chipset manufacturers.
Find the USB port on your computer. A sample USB port is pictured below. It is typically located
next to the PS/2 or serial ports on the back of your computer.
Plug the U46DJ’s USB cable (Series A plug type) into the USB port of your computer.
Turn on the U46DJ’s power button. After that, you will see on power light on the U46DJ’s front
panel. The U46DJ gets the power from the computer via USB cable. You can also use an external
Power supply if you have one.
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U46DJ ESI
4. Driver Installation
After connecting and turning on the U46DJ, your computer will automatically detect the U46DJ as
a USB Composite Device and will proceed with the installation.
1. To confirm the installation of the U46DJ, go to ‘Start-> Settings-> Control Panel -> System ->
Device Manager’. Confirm that two (2) instances of “USB Audio Device” are listed under ‘Sound,
video and game controllers’ and that one (1) “USB Composite Device” is listed under ‘Universal
Serial Bus controllers’.
2. Check your system.
Go to: Control Panel > Sounds and Audio Devices > Audio
Please check your audio devices are installed properly.
Important note
Due to the limitations of the USB 1.1 driver, audio output at 48 kHz sample rate is limited to 4
channels. If you need better audio quality and don’t need all 6 outputs, you can choose the 48
kHz driver. If you need all 6 outputs for your work, you must choose the 44.1 kHz driver.
- the WDM device ‘U46DJ’ is a 44.1 kHz fixed driver. There is another WDM driver
‘U46DJ(2)’ that is fixed at 48 kHz
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U46DJ ESI
2. Install exclusive U46DJ driver. Insert the ESI driver CD in your CD Rom drive. Open U46DJ
folder and copy it to your computer. Then, just click the “setup” icon. After that, if you see the
message below, simply click “Yes.”
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3. Click “Next” and follow the instructions on the screen.
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4. Now please confirm if the icon is visible in the system tray of the task bar.
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5. U46DJ Control Panel
After successfully installing the U46DJ hardware and driver, you can see the icon on the system
tray of the task bar. Clicking on this icon will launch the U46DJ Control Panel.
5.1. Pull Down Menu
The U46DJ Control Panel includes a pull down menu section that contains the configuration menu.
(1) File – Factory Default
Returns all U46DJ Control Panel configuration settings to the factory default.
(2) File - Always On Top
Enables to display the U46DJ Control Panel always over other windows. If this is not selected, the
active windows of other applications will be shown over the U46DJ Control Panel.
(3) File - Exit
This will close the U46DJ Control Panel window but it will not shut down the control panel. You
can always relaunch the control panel by clicking ‘ESI’ icon on the system tray.
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(4) Help – About
Check current driver information.
(5) Help – Block Diagram
You can see the basic signal flow of U46DJ at any time.
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5.2. Input Section
(1) Input
This is where you can increase the input level of the analog input 1/2. The input level 3/4 is fixed at
0dB. The number on the bottom indicates the relative level in dB
(2) Input source display
This is where you can check current input source selected by the input source selector on the front
panel of U46DJ.
Input CH 1/2 Input CH 3/4
(3) Monitor
This is where you can adjust input monitoring level of U46DJ. Set the level using the mouse, mouse
wheel, or cursor keys. The number on the bottom indicates the relative level in dB. You can also
select mute button to mute each monitoring input source.
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5.3. Output Section
(1) Output 1/2, 3/4, 5/6
You can individually change levels for all output channels by clicking and dragging the fader bars.
The number on the bottom shows the relative amount in dB. You can also select mute button to
mute each output channels
(2) Master Output
You can adjust all input / output monitoring levels by clicking and dragging the Master fader.
Again, the number on the bottom shows you the relative monitoring level in dB. You can also select
mute button to mute each output channels.
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6. Applications Setup
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.
Important note
Due to the limitations of the USB 1.1 driver, audio output at 48 kHz sample rate is limited to 4
channels. If you need better audio quality and don’t need all 6 outputs, you can choose the 48
kHz driver. If you need all 6 outputs for your work, you must choose the 44.1 kHz driver.
6.1. Windows Multimedia setup
The Windows Multimedia setup is required if you want to use your U46DJ system as the main
sound device for Windows multimedia applications. Go to My computer-> Control panel -> Sounds
and Audio Device Properties -> Audio. Select the U46DJ(44.1 kHz) or U46DJ(2) (48 kHz) driver as
your playback and recording device.
* WDM Driver ‘U46DJ’ is a 44.1 kHz fixed driver. There is another WDM driver ‘U46DJ(2)’
that is fixed at 48 kHz fixed.
Important note
You must not use two drivers at the same time otherwise a sample rate error will occur. For
example, if you set ‘U46DJ’ on windows multimedia setup, you should not choose ‘U46DJ(2)’
on the other audio application. In this case, the setup might fail when Windows sound scheme
is played.
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6.2. Latency setting on ASIO applications
Clicking the ASIO Control Panel button (or config) of ASIO applications will open the ASIO
latency setting of U46DJ. Keep ‘Enable Input’ should be always checked. Here you can choose
between different buffer sizes. Typically a lower latency is good when working with software
synthesizers or when you process audio signals from the audio inputs in realtime with your audio
software. A smaller latency value will however also cause more system load.
For a typical faster Pentium 4 system, 128 ~ 256 are good values. Buffer sizes 1024 and 2048 are
normally used only in special circumstances. The factory default is 512 to provide a basic level of
compatibility to different systems.
Make sure you click the Apply button after changing the settings.
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6.3. Tracktion
The U46DJ comes bundled with the full version of Tracktion – a professional recording and MIDI
production software by Mackie / Raw Material Software. After launching Tracktion, select Settings
then go to the audio devices tab. Choose ASIO 2.0 – U46DJ as playback and record device as
shown below.
Again, due to the limitations of the USB 1.1 driver, audio output at 48 kHz sample rate is
limited to 4 channels. If you need better audio quality and don’t need all 6 outputs, you can
choose the 48 kHz driver. If you need all 6 outputs for your work, you must choose the 44.1
kHz driver.
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U46DJ ESI
6.4. Cubase and Nuendo
After launching Cubase or Nuendo, go to Device -> Device Setup -> VST Multitrack. Select ‘ASIO
2.0 – ESI U46DJ_44.1kHZ’or ‘ASIO 2.0 – ESI U46DJ_48.1kHZ’ asASIO device.
Again, outputs at 48 kHz sample rate are limited to 4 channels.
Note: clicking the ASIO Control Panel button will open the ASIO latency setting of U46DJ.
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U46DJ ESI
6.5. Wavelab
After launching Wavelab, go to Options -> Preference -> Audio Card. Select ‘ASIO 2.0 – ESI
U46DJ_44.1kHZ’ or ‘ASIO 2.0 – ESI U46DJ_48.1kHZ’ as ASIO device.
Note: clicking the ASIO Control Panel button will open the ASIO latency setting of U46DJ.
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