Lead Audio NF DAC User manual

Digital to Analog Converter
Model : Lead Audio NF DAC
Product Name: DA Converter
Model Name: Lead Audio NF DAC
Purchase Date:
Dealer:
- Warranty period of this product is two years.
- This product was manufactured under severe quality control and inspection process.
- This product passed EMC test and certication for home use device.
- The warranty is only valid if, when warranty service is required, the warranty
card is fully and properly completed with the original invoice or receipt or
conrmation, and the serial number on the product has not been defaced.
- Lead Audio’s obligations are limited to the repair or, at its discretion, replace-
ment of the product or the defective part.
- The products should be delivered to authorized Lead Audio dealers or
authorized service centers by purchaser when repair or replacement is required.
-Warranty repairs must be carried out by authorized Lead Audio dealers or
authorized service centers.
- No re-imbursement will be made for repairs carried out by non Lead Audio
dealers and, any such repair work and damage to the products caused by such
repair work will not be covered by this warranty.
- This product is not considered to be defective in materials nor workmanship by
reason that it requires adaptation in order to conform to national or local
technical or safety standards in force in any Country other than the one for
which the product was originally designed and manufactured.
- The Warranty period starts from the invoice date or 2 months after production date
which is recorded in central system of Lead Audio if purchaser can’t provide a valid invoice.
NORTHERN
FIDELITY
WARRANTY CARD L E A D A U D I O
www.lead-audio.com
ENGLISH MANUALLEAD AUDIO www.lead-audio.com
1. Input button
You can choose the input source by
pushing this button (USB,D1/COAX
and,D2/OPT)
2. Output button
You can choose output device by
pushing this button (Headphone, Line
Out, Variable Line Out and Balanced
Out)
3. Volume knob
You can control the volume.
4. Phones
You can connect headphones jack.
FRONT & BACK PANEL
FRONT PANEL
1. Var Out
Line out to connect with other power
amplifier. Output volume can be
controlled by NF DAC.
2. Out
Line out to connect with other power
amplifier. Output volume can’t be
controlled by NF DAC.
3. Balanced Output
You can get balanced output with XLR
connector.
4. D1
Connect with the equipment which
has coaxial digital audio output. Can
be connected with digital RCA cable.
Audio RCA cable shouldn’t be used.
5. D2
This Input is for connection with
equipment which has optical digital
audio output.
6. USB
This USB Input can be connected to
PC directly. Please do not use external
USB hub but connect product to USB
port of PC directly.
7. DC 12V
Please use the adapter enclosed in
the packing box only.
BACK PANEL
DA Converter:
TI (Burr Brown), 24bit/192KHz
Digital Input Sampling Frequency:
USB: 44.1/48/88.2/96/176.4/192KHz
Digital Input: 20KHz to 216KHz
Frequency Response: DC to 20KHz
THD at 1KHz: <0.001% by Design
S/N Ratio: >120dB by Design
(A Weighting)
Jitter: < 100ps by Design (ASR)
Line Out Level: 2.7V RMS max
600 Ohm Load
Headphone Output Level:
Max 3.6V rms in 600 Ohm or
0.5V rms in 32 Ohm
Z out=25 Ohm
Power Consumption: < 5 Watts
TECHNICAL SPECIFICATION

Thank you for purchasing NF DAC of Lead Audio. NF DAC is the third
generation of DAC(Digital to Analog Converter) plus Headphone Amp
introduced by Lead Audio with 24 Bit and 192 KHz of Sample Rate. NF
DAC succeeded the design fundamentals of LA-100 but upgraded its
features and quality for the Lead Audio customers who have always
encouraged, urged and waited for the next generation of DAC. However, it
is not only for the users who already know the beauty of Lead Audio’s
sound but also for the new users who are ready to explore the new tone and
timbre. Please take a look at the main features as follows and then enjoy
original sound with help of NF DAC.
MESSAGE FROM THE MANUFACTURER
Do not expose the product in water or
in to dense humidity, there is a risk of
getting an electric shock or a start of fire.
Do not remove the cover, it may
cause wrong operation and break.
User repair parts are not enclosed.
Please ask for service to experts.
Do not use the product near water
Do not cover the air circulation holes.
Do not install the product near heating
sources such as heaters, stoves and
fireplaces.
Do not use non-approved parts.
Pull out the power plug when the
product is unused for a long time.
Contactthe A/S if the power plug is
damaged, any liquid entered the product,
exposed to rain or humidity, does not work
properly, or if damaged in any other way.
Please only use power adapter
enclosed in packing box.
Please take all the safety tips cautiously.
Please use the adapter enclosed in
the packing box only.
SAFETY AND CAUTION FOR OPERATION
First, please connect the provided adapter with DC input jack on the back panel.
Switch ON the power on the front panel after connecting PC and NF
DAC with USB cable enclosed in the packing box. Please don’t use
USB Hub but connect PC and NF directly to get the best sound quality.
Operate Input key on the front panel and confirm USB LED is ON. To
make operation by PC, X-MOS driver should be installed. Please find
setup file in the directory of the installation CD and click the file to start
installation process. After installation of the driver, please select X-MOS
XS1-L1 Audio as a default speaker in the Sound and Audio equipment
controller in PC control panel.
CONNECTION AND OPERATION
High performance of Audio components used for expensive Hifi instruments
(PCM 1796 DA Converter from TI (Burr Brown) and Wima Condenser)
1 ppm of TCXO used for high precision of broadcasting equipment.
(NF DAC realizes Low Noise Master Clock with top-class of 1 ppm TCXO
adaptation which has been used only for broadcasting equipment and
uses double multiplication of frequency to secure 50% of Duty of Master
clock. It fundamentally removes Jitter and Noise from the Clock so that
the reproduction of the original sound becomes more substantial)
Adaptation of special noise reduction technology know-how with
Collpitz Oscillator and 2 steps buffering clock.
Adaptation of Sample rate converting technology used for top-class of
Hifi Audio to remove Jitter noise which is fatal to sound quality.
Adaptation of DC Coupled circuit for the high quality of sound which
fundamentally eliminates the degradation of the sound quality from the
usage of capacitor.
MAIN FEATURES
Connect Output socket (Coax Out / Optical Out) of a DVD player with
the matched socket (D1 or D2) on the back panel of NF DAC with the
appropriate cable. Operate Input key on the front panel and confirm D1
or D2 LED is ON. (Cable is not enclosed. Please contact a dealer to
purchase appropriate cable suit to your favorite)
Please set the Output of DVD Player with 2 Channel PCM. NF DAC
doesn’t support Dolby Digital 5.1 or DTS.
CONNECT WITH DVD PLAYER
CONNECT WITH PC
Connect Output socket (Coax Out / Optical Out) of a CD player with the
matched socket (D1 or D2) on the back panel of NF DAC with the
appropriate cable. Operate Input key on the front panel and confirm D1
or D2 LED is ON. (Cable is not enclosed. Please contact a dealer to
purchase appropriate cable suit to your favorite)
CONNECT WITH CD PLAYER
Connect Var-out or Out on the back panel of NF DAC with RCA Input (Line-in)
of Amplifier with the appropriate cable. Operate Output key on the front
panel and confirm Var-out or Out LED is ON. (Cable is not enclosed. Please
contact a dealer to purchase appropriate cable suit to your favorite).
Var-out is a variable output and the Volume control is available by the
Volume knob of the front panel and by the Remote controller. Out is a
fixed output and the Volume control is available by Remote controller.
CONNECT WITH AMPLIFIER
Connect the Headphone terminal to the phone jack of front panel.
Operate Output key on the front panel and confirm Phone LED is ON.
CONNECT WITH HEADPHONE
!