Kingrex UC384 User manual

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KingRex UC384 USB TO S/PDIF DIGITAL TO DIGITAL CONVERTER
USER MANUAL
KingRex Technology Co., LTD
www.kingrex.com
[email protected]

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TABLE OF CONTENT
Table of content…………………………………………………………………………………………………….…P.2
Contents of KingRex UC384 USB TO SPDIF/IIS D2D converter package…………….P.3
Safety instruction……………………………………………………………………………………………P.4 ~P.6
Warning
Important safety instruction
Safety caution
Product feature……………………………………………………………………………………………………..P.7
Specification………………………………………………………………………………………………………….P.8
USB interface
S/PDIF interface
Operation environment presentation……………………………………………………………P.9-P.10
Front panel details & rear panel details
DC jack
Power indicated LED light
USB port
AES/EBU
S/PDIF
IIS
Connection to the host………………………………………………………………………………………….P.11
Technical information………………………………………………………………………………..………….P.12
UC384 USB to SPDIF D2D converter diagram
Working environment suggestion
Suggested software for UC384
Driver installation……………………………………………………………………………………….…P13-P.16
Obtaining the driver
Installing the driver on a Windows-based PC
Installing the driver on a Mac
Configuring the computer to UC384 USB TO SPDIF/IIS D2D converter package
Configuring a PC with Windows XP
Configuring a PC with Vista or Win7
Configuring a Mac audio output devices
Configuring for Windows XP, Vista, or Win 7
Configuring ASIO output for windows system
Configuring the player for WASAPI or ASIO output support Foobar 2000
…………………………………………………………………………………………….………………………………P.17-P.22
Maintenance
Burn in
Service
Our best wishes

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A. CONTENTS OF KINGREX UC384 USB TO S/PDIF CONVERTER
PACKAGE
UC384 CONVERTER *1PC
DC 7.5V global switching power adaptor *1
USB cable *1
User manual *1
Warranty card *1

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B. SAFETY INSTRUCTION
i.Warning!
Changes or modifications not authorized by the manufacturer can invalidate the
compliance CE regulations and cause the unit to be no more suitable use. The
manufacturer refuses every responsibility regarding damages to people or things
due to the sue of a unit which has been subject to unauthorized modifications or to
misuse or to malfunction of a unit which has been subject to unauthorized
modifications.
ii.Important safety instructions!
Thank you for choose KINGREX UC384 USB TO S/PDIF CONVERTER. We sincerely
hope you could keep the user manual for whole KingRex UC384 digital to digital
converter(DDC) lifetime, it provides you with better protection for connected
equipment.
Please read this user manual very carefully. It provides safety, installation, and
operating instructions that will help you derive the overall performance and fully
extend the life that the UC384 DDC has to offer.
Please save this manual! It includes important instructions for the safely use UC384
and for obtaining factory service should the proper operation of the UC384 come
into question.
Please save or recycle the packaging materials! The UC384 shipping materials were
designing with great care to provide protection from transportation related damage.
These materials are invaluable if you ever have to return the UC384 for service.
Damage sustained during transit is not covered under the warranty.
iii.Safety caution!
The following precaution should be observed when working on the power supply
unit:
-Remove watches, rings or other metal objects.
!!! Caution: Risk of electric shock, do not remove cover. No user serviceable parts
inside, Refer servicing to qualified service personnel.

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!!! Warning: To reduce the risk of fire or electric shock, install in temperature and
humidity controlled indoor area of conductive contaminants.
-Read the user manual and familiarize yourself with the functions before you
attempt to use this equipment.
-To prevent fire or shock hazard, do not expose this appliance to rain or moisture.
-Do not dispose of in fire to prevent injury or burns. Also do not place the units near
the heat sources such as radiator, heat registers, stoves, or other devices (including
amplifiers) that produce heat.
-Do not disassemble the machine with power on. If you do, you may receive an
electric shock.
-Do not set these units near the water near following area: bathtub, washbowl,
kitchen sink, laundry tub, wet basement, or swimming pool.
-Do not place heavy objects on the power cord. If the cord is damaged, fire, or
electrical shock may result. In particular, it is possible that one might accidentally
place a heavy object on a carpet that covers the cord; definitely avoid these
situations!
-Do not install the UC384 DDC in a place where it might be exposed to oil, smoke or
steam (for example, near a cooking table or humidifier). Otherwise, fire or electrical
shock may result.
-Do not place the power cord near a heating device. Otherwise, the cord sheath may
melt, resulting in fire or electrical shock.
-Obstruct the necessary all- around ventilation: especially DO NOT place the set
close to curtains or on soft furnishing such as carpets. Overheating can cause
unnecessary damage and shorten the lifespan of the equipment.
-No user serviceable parts inside. Refer servicing to qualified technician. Never
remove the cover unless qualified to do so. This unit contains dangerous voltage.
-When you remove the power plug, be sure to hold the plug. Never pull on the cord.
Otherwise, the power cord may become damaged, resulting in fire or electrical
shock.

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-Do not attempt to modify this equipment. Otherwise, fire or electrical shock may
result. Warranty is void on modified devices.
-Do not damage, process, bend, twist, stretch or heat the power cable. If the cord is
damaged, fire or electrical shock may result.
-When you are connecting other audio devices to the UC384 DDC make sure that
you first turn off the power to all devices to be connected. Refer to the user’s guide
for each device and use the specific cable for the connection.
-If you plan not to use the UC384 DDC for a long period of time (such as when you
are on vacation), remove the power plug from the AC outlet. Otherwise, a fire could
possibly result.
-If any abnormality occurs while suing the UC384 DDC, remove the plug from the AC
outlet. In this case first shut off the power amplifier or turn down the volume
controls and so on to avoid possibly damaging transients.
- If you notice any abnormality- such as smoke, smell, noise, etc. –remove the plug
from the AC outlet. Confirm that the abnormality is no longer present, then consult
your dealer for repair. If you continue using the UC384 DDC under abnormal
condition, fire or electrical shock might result.
- If a foreign object or water enters inside the equipment, remove the plug from the
AC outlet and consult your dealer for repair. If you continue using the UC384 DDC
under this condition, fire or electrical shock may result.
- If the power cord is damaged(for example if it is cut or if the core wire is exposed),
ask your dealer for a replacement. If you continue suing the UC384 DDC under this
condition, fire or electrical shock might result.

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C. Product feature:
KingRex UC384 USB to S/PDIF Digital to Digital Converter is a high-quality
computer transport interface for those wishing to stream high-resolution playbacks
to an existing DAC. The UC384 DDC can transfer from PC or Mac at 16bit/44.1KHz to
32bit/384Khz by IIS output and 24bit/192Khz by SPDIF & AES/EBU outputs. The
UC384 DDC runs asynchronous to transfer the best digital signals in very low jitter.
The master clock generator is a classy 1ppm TXCO unit with proprietary low-jitter
drivers for Windows. Direct Sound, ASIO4ALL, and WASAPI are all supported and
run smoothly. For Mac & Linux users, it will be even more convenient by no driver
needed. The UC384 DDC is housed in an oval cross-section aluminum case with
black hairbrush polish. It measures 88*82*24mm. “The UC384 DDC ships with
Windows drivers that need to be installed on your computer. An external 7.5V power
supply is provided.

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D. Specification:
USB interface :
-USB 2.0 High/Full Speed compliant
-USB Audio Device Class Specification v1.0/2.0/3.0 Compliant
IIS audio interface:
- Sample Rates Supported:44.1Khz, 48Khz, 88.2Khz, 96Khz, 176.4Khz,
192Khz,352.8Khz, & 384Khz
- 16,20,24,and 32bit / 2 Channel
SPDIF Interface:
With two type output connector:
Coaxial & AES/EBU
-1 Stereo SPDIF output through Integrated IEC958 Line Driver
-16, 20, 24bit / 2 Channel
-Sample rates support : 44.1Khz, 48Khz, 88.2Khz, 96Khz. & 192K.
S/PDIF output voltage: 2.5Vpp
AES/EBU output voltage: 2.5 Vpp
Power demand : 7.5V DC
Power consumption : 200mA @7.5V

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E. Operation environment presentation
Front panel details & rear panel details
(Figure 1)
1. DC JACK: FOR 7.5V power input – Apply a voltage in DC7.5V. Tip is positive,
ring is negative. This input is protected against polarity inversion. 2.1mm tip jack
supply connector.
2. Power instruction LED light - Power indicated LED. After connected power,
the power indicated LED light will be glow. If the LED light is dim, please
exchange your 7.5V switching power supply or contact with your local distributor
& dealer for after service.
3. USB port for PC signal input –Connect to host w/ a suitable 2.0 USB cable.
(P.S. USB1.0/1.1 may can not support the playback transferring over 24bit/96Khz
playback. When high sampling ratio playback transferring needed, please make
sure to connect with USB2.0/3.0 USB port)

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(Figure 2)
4. Female B USB connector.
5. AES/EBU: TINY XLR – Connect to DAC or receiver with a 110 Ohms balanced
digital cable terminated with XLR connectors. The output is galvanically isolated
by a pulse transformer. XLR male connector.
AES/EBU OPUTPUT PIN DEFINE:
1) GND
2) +
3) -
6. S/PDIF : RCA – Connect to DAC or receiver with a coaxial digital cable
terminated with RCA male plugs. This output is galvanically isolated by a pulse
transformer. Gold plated RCA female connector.
7. IIS : RJ45 – Direct IIS output for connection to a board or DAC provided with IIS
input. This input is not galvanically decoupled, so an external solution or a
galvanically isolated input must be used if galvanic isolation is required.
IIS output
By Figure 2, Left to Right is 8~1.
2,4,6,8 Ground
1) BCK 3)DATA 5)LRCK 7)MCLK
Warning! This output can use by KingRex IIS cable directly connected to a
North Star Design DAC such as Model 192 or Extremo!
CAUTION : AES/EBU & SPDIF CAN NOT BE USED AT THE SAME TIME. PLEASE
CONNECT ONLY AES/EBU OR SPDIF FOR STREAM OUT THE SIGNAL TO YOUR
DAC.

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F. Connection to the host
Connect the USB-B plug of a 2.0 USB A-B cable to the USB connector (Figure 1, 3)
of UC384 DDC.
Connect the USB-A plug of the cable to a 2.0 USB port of your computer.
Connect a power supply connector (7.5V switching adaptor) of UC384 DDC. The
power indicator will lit.
Some PC OS will install the Basic driver of UC384 DDC automatically.
NOTE: If you want to avoid the automatic driver installation, please connect to the
computer after manually installing the driver.

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G. Technical infos:
UC384 USB TO S/PDIF & IIS D2D CONVERTER DIAGRAM
KingRex UC384 DDC designed by asynchronous. Inside the main chipset, it has buffer
area for temporary storage stream data which helps to decrease the jitter and signal
lose as well. Master clock generator is a classy 1ppm TCXO w/ proprietary driver lower
jitter.
Working environment suggestion:
OS:
Windows: XP, Vista(32 / 64bit) & Win7 (32 / 64bit)
Mac : 10.5, 10.6, & 10.7 (SOME OLD MAC COMPUTER ONLY USB1.0
INTERFACE,SO IT ONLY ABOUT TO OUTPUT 44.1K IIS OUTPUT TO UC384)
P.S. For getting the best performance, the firmware of UC384 DDC is fully designed by
asynchronous. It will not able to fit MAC OS 10.4 accordingly. Please update your Mac OS
to 10.5 at least.
Suggested software while using UC384 DDC :
Media player:
Foobar 2000 V1.1 (http://www.foobar2000.org/download )
ASIO component
WASAPI output support
(http://www.foobar2000.org/components/view/foo_out_wasapi )

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H. Instruction for how to operate the UC384
Driver installation
Obtaining the driver
The drivers for UC384 are available on the CD-Rom.
Installing the driver on a Windows-based PC
1. Automatic (guided) installation.
Apply power to UC384 and connect it to the PC. Following the negotiation process,open
the driver folder select “SETUP(SETUP LUNCHER) the driver installation wizard is
automatically proceed as in Figure 4.
(Figure 4)

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2. Click on the button to proceed. A window apprears as show in Figure 5:
(Figure 5)
3. Click on the blank space. Press “Next” for next step.
(Figure 6)

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4. Choose “Continue Anyway”(as recommended) and proceed to next step.
The windows shown in figure7 will show.
(Figure 7)
5. Please press “Next” and go on next window.
(Figure 8)

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6. Click on Continue. The installation will proceed to the end. The window is
shown in figure 9. Click on Finish to complete the driver installation.
(Figure 9)
NOTE: the wizard appearance and the guided installation procedure may slightly vary
from XP to Vista to Windsows 7.
Manually uninstalling the driver on a Windows-based PC
Connect UC384 to the PC.
Go to the control panel and launch the “System” utility, then select Hardware tab. Open
the peripheral management window (see figure XX).
You will find UC384 listed under Audio, Video, and Game controllers.
Installing the driver on a Mac
As Mac OS will automatic install the driver ( No more extra driver to be needed)!

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I. Configuring the computer to UC384
Configuring a PC with Windows XP
A PC with Windows XP can use UC384 in two different ways: Direct Sound (DS) and
ASIO4ALL.
Configuring a PC with Windows Vista or Win7
A PC with Windows Vista or Win7 can use UC384 in two different way: Direct Sound (DS),
ASIO4ALL, and WASAPI. DS is suitable for players which cannot operate WASAPI or for
Internet streaming. WASAPI(Windows Audio Standard API) is a standard interface for
audio players which allows to get the same performance of KS with application which
cannot operate in KS mode, at the cost of higher CPU load.
Configuring a Mac audio output devices
Go to system preference and select sounds. The following windows as shown, please
select UC384 and ope the “AUDIO MIDI SETUP” for output sampling rate/bits rate select
for output as indicated Figure 10

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(Figure 10)
Configuring for Windows XP, Vista, or Win7
Open control Panel and select Hardware and Sounds. Under Audio, click to open the
Manage Audio Devices window which will show KingRex UC384.

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(Figure 11)
Open control panel and select hardware and sounds. Please go the path foobar
2000-> File->Preference->ASIO Virtual Device Editior-> ASIO4ALL control panel->
KingRex UC384-> SPDIF or IIS.

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As happens with ASIO4ALL, press the “configure” button setup the ASIO virtual
devices.
(Figure 12)
Configuring ASIO output for Windows system
Go to system preference and select sounds. The following windows as shown, please
select UC384 for output as indicated Figure 13. Under the UC384, the first device is
I2S output; the second device is SPDIF ouput.
(Figure 13)
Configuring the player for WASAPI or ASIO output support under FooBar
2000 player