NuPrime CDT-8 User manual

Single-speed Red Book error-correcting CD Player,
& Ultra-High sampling rate converter CDT-8

01
F
CC Notice - Declaration of Conformity Information
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his equipment has been tested and found to comply with the limits for a Class B digital device,
p
ursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
a
gainst harmful interference in a residential installation. This equipment uses and can radiate radio
f
requency energy and, if not installed and used in accordance with the instructions, may cause
h
armful interference to radio communications.
H
owever, there is no guarantee that interference will not occur in a particular installation. If this
e
quipment does cause harmful interference to radio or television reception, which can be
d
etermined by turning the equipment offand on, the user is encouraged to try to correct the
i
nterference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
W
ARNING: Only peripherals complying with the FCC class B limits may be attached to this
e
quipment.
C
hanges or modifications made to this equipment, not expressly approved by us or parties
a
uthorized by us could void the user’s authority to operate the equipment. This device complies with
p
art 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
c
ause harmful interference, and (2) this device must accept any interference received, including
i
nterference that may cause undesired operation.

02
E
U Declaration of Conformity
H
ereby, NuPrime Audio, Inc. declares that this device is in compliance with the essential requirements
a
nd other relevant provisions of Directive 2004/108/EC.
T
he manufacturer of this product is NuPrime Audio, Inc., 1712 Pioneer Ave. Ste 1817, Cheyenne,
W
yoming 82001, USA.
T
he Authorized Representative for EMC and product safety is NuPrime Audio, Inc., 1712 Pioneer Ave.
S
te 1817, Cheyenne, Wyoming 82001, USA.
F
or any service or guarantee matters please refer to the addresses given in separate service or
g
uarantee documents.
F
or customers in Europe
D
isposal of Old Electrical & Electronic Equipment (Applicable in the European Union and othe
r
E
uropean countries with separate collection systems)
T
his symbol on the product or on its packaging indicates that this product shall not be treated as
h
ousehold waste. Instead it shall be handed over to the applicable collection point for the
r
ecycling of electrical and electronic equipment. By ensuring this product is disposed of correctly,
y
ou will help prevent potential negative consequences for the environment and human health,
w
hich could otherwise be caused by inappropriate waste handling of this product. The recycling
o
f materials will help to conserve natural resources. For more detailed information about
r
ecycling of this product, please contact your local Civic Oce, your household waste disposal
s
ervice or the shop where you purchased the product.

03
S
AFETY INSTRUCTIONS
T
here are two categories of Safety Instructions included in this manual:
•Product Warnings, (i.e., what must never be done to assure avoiding those hazards that
could cause bodily injury or property damage); and
•User Directions (i.e., what must always be done to assure the safe use of your device).
T
he Safety Instructions contained in this manual have been categorized in accordance with the
s
eriousness of the potential hazards through the use of Signal Words. Those Signal Words, and their
i
ntended meanings, are as follows:
D
ANGER: Indicates that a failure to observe the Safety Instructions could result in death or
c
atastrophic bodily injury.
W
ARNING: Indicates that a failure to observe the Safety Instructions could result in serious bodily
i
njury.
C
AUTION: Indicates that a failure to observe the Safety Instructions could result in minor bodily
i
njury or property damage.
N
OTE: Designates important information that relates to activities and/or conditions that might
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esult in loss of data and/or damage to your device.
S
afe Use and Operation of Your Device
T
his equipment emits stray RF energy and will interfere with the reception of signals by airborne
e
lectronic navigational devices or medical devices. Do not operate this equipment near any sensitive
m
edical devices.
W
ARNING: Use only grounded AC power cords.
A
lways immediately disconnect the power to the equipment in the event the device emits an unusual
o
dor or sound or generates smoke.

04
W
ARNING: Never attempt to disassemble, repair or make any modification to your device.
D
isassembly, modification or any attempt at repair could cause bodily injury or property damage, as
w
ell as damage to the device itself.
W
ARNING: Your device is not a toy. Never allow children to play with your device. Misuse, rough or
i
mproper handling of your device by children could result in serious bodily injury for any of the
e
numerated safety warnings in this manual. In addition, always keep all accessories and components
o
ut of the reach of small children as small parts might present a choking hazard. Seek immediate
m
edical attention if choking occurs or if any small part has been swallowed.
C
AUTION: Never raise the sound volume level too high when using your device with earphones. An
e
xcessive sound volume level could cause damage to your hearing.
W
ARNING: To reduce the risk of fire or electric shock, do not expose the unit to moisture or water.
D
o not allow foreign objects to get into the enclosure. If the unit is exposed to moisture, or a foreign
o
bject gets into the enclosure, immediately disconnect the power cord from the wall. Take the unit
t
o a qualified service person for inspection and necessary repairs.
R
ead all the instructions before connecting or operating the component.
K
eep this manual so you can refer to these safety instructions.
H
eed all warnings and safety information in these instructions and on the product itself. Follow all
o
perating instructions.
D
o not use this unit near water.
Y
ou must allow a minimum 10 cm or 4 inches of unobstructed clearance around the unit. Do not
p
lace the unit on a bed, sofa, rug, or similar surface that could block the ventilation openings. If the
u
nit is placed in a bookcase or cabinet, there must be ventilation of the cabinet to allow proper
c
ooling. Keep the component away from radiators, heat registers, stoves, or any other appliance that
p
roduces heat.

05
T
he unit must be connected to a power supply only of the type and voltage specified on the rear
p
anel. Connect the component to the power outlet only with the supplied power supply cable or an
e
xact equivalent. Do not modify the supplied cable.
D
o not route the power cord where it will be crushed, pinched, bent, exposed to heat, or damaged in
a
ny way. Pay particular attention to the power cord at the plug and where the cord exits the back of
t
he unit.
T
he power cord should be unplugged from the wall outlet during a lightning storm or if the unit is to
b
e left unused for a long period of time.
I
mmediately stop using the component and have it inspected and/or serviced by a qualified service
a
gency if:
•The power supply cord or plug has been damaged.
•Objects have fallen or liquid has been spilled into the unit.
•The unit has been exposed to rain.
•The unit shows signs of improper operation.
T
he unit has been dropped or damaged in any way

06
Introduction
N
uPrime CDT-8 Pro is a highly accurate professional CD player with powerful DSP-based decoder
t
hat provides all Red Book error-correction capabilities with master-clock control of the entire
d
ecoding system, thus lowering jitter significantly. The transport’s single speed minimizes vibration
a
nd unbalanced discs. A selectable sampling rate converter (SRC) up samples the CD format to
h
igher sampling rate with ultra-low jitter and distortion.
F
eatures
Highly Accurate CD Playback And Digital Outputs
•A powerful ARM chip LPC2103F CD reads, writes and controls error correction
•Philips SAA7824HL high-end laser reads/writes head control and decodes chips
•Supports CD-DA CD-R, CD-RW
•Algorithm reduces digital interference resulting in extremely low jitter
•Coaxial output with a dedicated isolation transformer
•Low jitter I2S output for professional use
Sampling Rate Converter
•The sampling rate of CD playback can be up sampled to PCM and DSD, from 44.1kHz to
768kHz or DoP256
•The conversion is achieved by up-sampling to mega hertz before down converting to
the targeted sampling rate with ultra-low jitter and distortion
Power and Mechanical
•Custom R-type professional transformer with shielding
•Low power consumption in Standby Mode
•NuPrime vibration-free isolation feet
•High quality aluminium remote control
•Available in black or silver anodized aluminium finish

07
S
pecifications
•Optical Sampling Rates Converter (SRC): 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz,
192KHz, DoP64
•Coaxial Sampling Rates Converter (SRC): 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz,
192KHz, 352.8KHZ, 384KHz, 705KHZ, 768KHZ, DoP64, DoP128, DoP256
•HDMI I2S Sampling Rates Converter (SRC): 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz,
192KHz, 352.8KHZ, 384KHz, 705KHZ, 768KHZ, DoP64, DoP128, DoP256
•AES / EBU Sampling Rates Converter (SRC): 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz,
192KHz, 352.8KHZ, 384KHz, 705KHZ, 768KHZ, DoP64, DoP128, DoP256
•Bit Resolution: 24-bits
•Dimensions: 235 mm W x 281 mm D x 55 mm H (including feet)
•Weight: 2.1Kg
•Worldwide AC voltage: 100VAC~240VAC Adapter

08
1
3
2
45
6
7
1
2
3
4
5
6
7
CD TRAY
DISPLAY
OPEN / CLOSE button
STOP button
PLAY / PAUSE button
STANDBY button
TRACK Selection buttons
Front Panel View:
Quick Start Guide

09
PIN 1: I2S_DATA-
PIN 2: GND
PIN 3: I2S_DATA+
PIN 4: I2S_BCK+
PIN 5: GND
PIN 6: I2S_BCK-
PIN 7: I2S_LRCK-
PIN 8: GND
PIN 9: I2S_LRCK+
I2S PIN Define:
PIN 10: I2S_MCK+
PIN 11: GND
PIN 12: I2S_MCK-
PIN 13: NC
PIN 14: DSD ON
PIN 15: NC
PIN 16: NC
PIN 17: GND
PIN 18: NC
PIN 19: NC
Outputs:
Digital Preamp
Rear Panel View:
1. Coaxial Output
2. Optical Output
3. AES / EBU Balance Output
4. HDMI I2S Output
AC Inlet Voltage Selector:
Make sure that the AC Voltage selector switch at the bottom of the unit is switched to the appropriate voltage for your country.
All CDT-8 are shipped with the switch set to 230V AC in order to prevent accidental damage.