NuForce STA120 Bedienungsanleitung
User’s Manual
Optoma NuForce
STA120
Stereo Amplifier
NuForce
STA120
Stereo Ampliier
User’s Manual
ALSTAGNZ
1
PB
NuForce STA120 Stereo Ampliier
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 dierent 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 modiications 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.
NuForce STA120 Stereo Ampliier
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INTRODUCTION
NuForce developed the STA120 ampliier for the audio enthusiast as an audiophile-grade stereo power amp
housed in an elegant, modestly sized enclosure. Oering quality parts throughout and advanced, high-eiciency
switching ampliier operation, the STA120 delivers genuine NuForce performance and value.
The STA120’s size belies its power: a robust 160 Watts into 4Ohms per channel. Sharing technology with
NuForce’s award-winning V3 mono ampliiers, mere power alone doesn’t tell the whole story. The STA120 renders
all of your recordings with thundering lows, crystalline highs, and a warm, tube-like midrange - all in perfect
balance with exquisite resolution and eortless, fatigue-free sound.
Proprietary feedback circuitry operates as the cornerstone of the STA120’s sound quality. A self-resonant design,
the 400 kHz PWM switching frequency constantly adjusts to the input signal, output current demands, and
loudspeaker impedance variations. Incredible speed and accuracy ensure that the most explosive dynamics and
the minutest of details convey the kind of life-like sound upon which NuForce’s reputation rests.
To be sure, the STA120 is destined to ind its place as the driving force in a great many music and A/V systems.
When it comes to mating with décor and today’s home audio components, the STA120’s power, transparency,
modest size and sophisticated appearance defy competition at its modest price point. Where sound and style
matter, nothing less will do.
Innovative Features
• High Power - 1% 125WX2@4Ω/ 10% 140WX2@4Ω
• Modest size and modern, elegant construction
• Proprietary high-speed, negative feedback design
• Very high eiciency PWM circuit topology
• Available in stylish Silver or Black inish
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NuForce STA120 Stereo Ampliier
QUICK START GUIDE
Product Overview
Front Panel
Back Panel
SPEAKER
LL
R
SPEAKER
AC 100(115)V / 230(240)V
FUSE T2.5A 250V
R
• Power On: Switch on the power from the rear ac switch
• Power O: Switch o the power from the rear ac switch
Connections
• Input: RCA
• Speaker Output: Connect the left and right speaker cables to the output terminals. In order to avoid shorting
out the STA120, before turning on the power, please make sure that the polarity of the speaker cables is
properly terminated to the loudspeakers and the STA120. Please make sure the unit is o before connecting
your speakers.
NuForce STA120 Stereo Ampliier
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SPECIFICATIONS
Input RCA
Output Five-way binding posts
Power output 1% 125WX2@4Ω
10% 140WX2@4Ω
Peak power output 300W
Gain 25.5 dB
Input impedance 22k ohm
Sensitivity 1Vrms
THD+N 0.008%
Frequency response 10 Hz - 40kHz
SNR 115 dB
Dimensions 9” x 8.5” x 2”
Weight 2.64 lb. Shipping weight 5 lbs.
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