NuPrime STA-100 Manuel utilisateur
STA-100
U S E R ’ S M A N U A L
NuPrime STA-100 is the most powerful and compact audio
amplifier with minimal distortion, and powerful, symmetrical,
crystal-clear sound attributes elevate the standard for
performance in entry-level audiophile amplifiers.
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Table of Contents
FCC Notice - Declaration of Conformity Information
..................................................................... 2
EU Declaration of Conformity....................................................................................................... 3
Safety Instructions
......................................................................................................................... 4
Specifcation
Connection
Situation map
................................................................................................................................ 7
Introduction
................................................................................................................................ 8
......................................................................................................................... 9
................................................................................................................................... 10
................................................................................................................................ 11
NuPrime’s Limited Warranty and Limitation of Liabilities ............................................................12
Quick Start Guide
FCC Notice - Declaration of Conformity Information
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection
against harmful interference in a residential installation.This equipment uses and can radiate
radio frequency energy and,if not installed and used in accordance with the instructions,may
cause harmful interference to radio communications.
However,there is no guarantee that interference will not occur in a particular installation.If this
equipment does cause harmful interference to radio or television reception,which can be
determined by turning the equipment o and on,the user is encouraged to try to correct the
interference 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.
WARNING: Only peripherals complying with the FCC class B limits may be attached to this
equipment.
Changes or modifications made to this equipment,not expressly approved by us or parties
authorized by us could void the user’s authority to operate the equipment.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.
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EU Declaration of Conformity
Hereby, NuPrime Audio,Inc.declares that this device is in compliance with the essential
requirements and other relevant provisions of Directive 2004/108/EC.
The manufacturer of this product is NuPrime Audio,Inc., 1712 Pioneer Ave.Ste 1817,Cheyenne,
Wyoming 82001,USA.
The Authorized Representative for EMC and product safety is NuPrime Audio,Inc., 1712 Pioneer
Ave.Ste 1817,Cheyenne, Wyoming 82001,USA.
For any service or guarantee matters please refer to the addresses given in separate service or
guarantee documents.
For Customers in Europe
Disposal of Old Electrical & Electronic Equipment (Applicable in the European
Union and other European countries with separate collection systems)
This symbol on the product or on its packaging indicates that this product shall
not be treated as household waste.Instead it shall be handed over to the
applicable collection point for the recycling of electrical and electronic equipment.
By ensuring this product is disposed of correctly, you will help prevent potential
negative consequences for the environment and human health, which could
otherwise be caused by inappropriate waste handling of this product.The
recycling of materials will help to conserve natural resources.For more detailed information
about recycling of this product,please contact your local Civic Office, your household waste
disposal service or the shop where you purchased the product.
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Safety Instructions
There 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 injuryor propertydamage); and
•User Directions (i.e., what must always be done to assure the safe use of your device).
The SafetyInstructions contained in this manual have been categorized in accordance with the
seriousness of the potential hazards through the use of Signal Words.Those Signal Words,and
their intended meanings,are as follows:
DANGER: Indicates that a failure to observe the Safety Instructions could result in death or
catastrophic bodily injury.
WARNING: Indicates that a failure to observe the Safety Instructions could result in serious
bodily injury.
CAUTION: Indicates that a failure to observe the Safety Instructions could result in minor bodily
injury or property damage.
NOTE: Designates important information that relates to activities and/or conditions that might
result in loss of data and/or damage to your device.
Safe Use and Operation of Your Device
This equipment emits stray RF energy and will interfere with the reception of signals by airborne
electronic navigational devices or medical devices.Do not operate this equipment near any
sensitive medical devices.
WARNING: Use only grounded AC power cords.
Always immediately disconnect the power to the equipment in the event the device emits an
unusual odor or sound or generates smoke.
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WARNING: Never attempt to disassemble,repair or make anymodification to your device.
Disassembly, modification or any attempt at repair could cause bodily injury or property damage,
as well as damage to the device itself.
WARNING: Your device is not a toy. Never allow children to play with your device.Misuse,rough
or improper handling of your device by children could result in serious bodily injury for any of the
enumerated safety warnings in this manual.In addition,always keep all accessories and
components out of the reach of small children as small parts might present a choking hazard.
Seek immediate medical attention if choking occurs or if any small part has been swallowed.
CAUTION: Never raise the sound volume level too high when using your device with earphones.
An excessive sound volume level could cause damage to your hearing.
WARNING: To reduce the risk of re or electric shock,do not expose the unit to moisture or water.
Do not allow foreign objects to get into the enclosure.If the unit is exposed to moisture,or a
foreign object gets into the enclosure,immediately disconnect the power cord from the wall.
Take the unit to a qualified service person for inspection and necessary repairs.
Read all the instructions before connecting or operating the component.
Keep this manual so you can refer to these safetyinstructions.
Heed all warnings and safety information in these instructions and on the product itself.Follow
all operating instructions.
Do not use this unit near water.
You must allow a minimum 10 cm or 4 inches of unobstructed clearance around the unit.
Do not place the unit on a bed,sofa,rug,or similar surface that could block the ventilation
openings.If the unit is placed in a bookcase or cabinet,there must be ventilation of the cabinet to
allow proper cooling.
any other appliance that
on the rear
Keep the component away from radiators,heat registers,stoves,or
produces heat.
The unit must be connected to a power supply only of the type and voltage speci ed
panel.Connect the component to the power outlet only with the supplied power supply cable or
an exact equivalent.Do not modify the supplied cable.
Do not route the power cord where it will be crushed,pinched, bent,exposed to heat,or
damaged in any way. Pay particular attention to the power cord at the plug and where the cord
exits the back of the unit.
The power cord should be unplugged from the wall outlet during a lightning storm or if the unit is
to be left unused for a long period of time.
Immediately stop using the component and have it inspected and/or serviced by a quali ed
service agency 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.
•The unit has been dropped or damaged in any way
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Introduction
The NuPrime STA-100 is the most powerful (2x100W@8 Ohm & 2x150W@4 Ohm) entry-level high-end audio
amplifier in its price range. It has a neutral and detailed sound characteristic. STA-100 design incorporates
high-speed gate driver error correction to achieve ultra-low distortion. Advanced protection circuitry
safeguard STA-100 from failure due to fault conditions such as short circuits, overload, overtemperature,
and under-voltage.
The Adaptive Voltage Switching Power Supply is the most innovative SMPS design introduced by NuPrime
for the first time. The amplifier's output signal feeds back into the power supply's servo power stage,
causing a change in the output voltages supplying the power stage of the amplifier. This design resulted in
more details at a low music level and explosive power at a high volume.
AC IN
Servo power
Anti-jamming and
eliminating noise
Gain
Controller
Power
Amplifier
Balanced
Matched
Voltage
Amplification
Primary voltage
regulation
Analog
Voltage
Secondary
voltage regulation
VD VC
VE
VC VD
VE
VB USB
+
-VA
+
-VA
+
-VA
+
-VA
15X
20X
30X
FB II
FB II
550-600 kHz
High Frequency
Class D Power Stage
Isolated
switching
power
supply
Isolated
switching
power
supply
FB I
FB I
FB III
FB III
FB III
Modern floating voltage technology causes the voltage to change in accordance with the strength of the incoming music signal.
Block Diagram
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Specifications:
Inputs
• Inputs: RCA: Un-Balanced input x 1
• TRIGGER IN (DC 0V~15V). Floating or (DC 3V~15V) as running ; less than 0.7V as standby.
Outputs
• Stereo Speaker Out x 1
• LINE OUT (Stereo) x 1
• TRIGGER OUT (12V,＜0.1A)
• DC 5Voutput via Type-A USB Connector (Maximum output 1.6A)
Amplifier
• Power: 2 X 100W @ 8 Ohms
• Power: 2 X 150W @ 4 Ohms
• Peak Output Power: 2 X 125W @ 8 Ohms
• Peak Output Power: 2 X 175W @ 4 Ohms
* The maximum power when the output is unilateral is 200W 1% and 290W 10% (when the speaker
impedance is 4R.)
• Input Impedance: 47k Ohms
• Gain Adjustable: x15 x20 x30 Three-stage gain adjustment
• Signal to Noise Ratio: > 90dB at 1W, 10W, 100W
• THD+N: <0.005%
• Frequency Response: 10Hz to 50kHz
• Worldwide AC voltage: 100 ~ 240Vac
• AC Fuse: Slow-blow, 5A, 250VAC
• Dimension: 151 mm W x 136 mm D x 51 mm H (including feet)
• Weight: 1.8 kg
• Color: Black (PANTONE 19-3924 Night Sky)
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Light indication
LED 1 : Power-on and standby status lights: Red light: Standby /// Blue light: Power on
LED 2 : Fault code indicator: Red light: power amplifier fault indication /// Yellow light: overload protection
Quick Start
Front Panel View:
Back Panel View:
Inputs:
RCA analog input x 1
Control:
GAIN Control x1
TRIGGER IN x 1
TRIGGER OUT x 1
Outputs:
Stereo Speaker Out x 1
DC 5V Output x1
1
2
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