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STA120
High performance class-D amp

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High performance class-D amp

NuForce pioneered ultra efficient, high quality Class-D amplifiers and has been at the forefront of this technology ever since. Continuing this legacy, the STA120 draws on the NuForce Class-D technology, experience and innovation, which have created some of the most acclaimed Class-D power amps available.

Features

Compact and powerful amp
Elegant design
Ultra efficient
Ideal partner for the DAC80 and WDC200
STA120

Precision power

The audiophile power supply and large toroidal transformer provide the power needed to precisely drive almost any speakers to satisfying levels, without adding noise or distortion. Its highly efficient design uses less energy and generates less heat and so provides ultra reliable operation and excellent green credentials.

STA120

Compact and elegant

Enclosed in the same elegant anodised aluminium casing as the NuForce range, this exceptionally compact stereo amp is an ideal partner for the DAC80 digital pre-amp and WDC200 wireless DAC.

STA120

Custom solutions

With its high power, cool running and compact dimensions, the STA120 is ideally placed to function as an audio distribution amplifier, powering in-wall and in-ceiling passive speakers.

STA120

Proprietary negative feedback circuitry operates as the cornerstone of this D-class amp’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 the NuForce reputation rests.

Recommended products

DAC80-100x100.jpg
DAC80
WDC200-100x100.jpg
WDC200

Reviews

Expert reviews

Stereoplay
Stereoplay
June 2016

Stereoplay test rating: 
Sound: top class
Overall judgment: good - very good
Price/performance: very good

"Precious processing amp with enough energy for challenging speakers. The STA120 is impressive and gives an enjoyable charm to the music…"

Audio Test
Audio Test
March 2016

Small device for big sound - With the digital analog converter Nuforce DAC80 and the class-D amp STA120 Optoma has succeeded in developing an audiophile symbioses. These units fit well together thanks to the space-saving format and discrete design. In terms of sound reproduction, the examines persuade with  great passion on detail and most transparent playback of different resolution, no matter how high/low the volume is set thanks to the 32-bit rotary. Both devices represent a worthwhile purchase.”

HiFi+
HiFi+
February 2016

“the STA120 stays on the right side of ‘bright’, and the upper mid detail on offer with the Gold 100 would highlight any brightness with consummate ease. Even with Brahms’ Hungarian Dances [Abbado/Vienna Philharmonic, DG], which are not the kind of music that one might naturally associate with the Gold 100, the DAC80/STA120 combination made those speakers sound truly inspiring.”

“in real life the DAC80 sounds great. And the power amplifier is easy to love, too. Despite those caveats, all in all, this is a great digital combination at a keen price!”

The ear
The ear
July 2015

“This amplifier is said to prefer a fast, clean and tight loudspeaker so the PMCs should be perfect, in practice it was a remarkably successful combination given the £650 price of the amplifier...It starts and stops with alacrity.”

“My time with this NuForce was brief but very enjoyable and I would repeat it given the chance. In value terms you pay a percentage for the compact size and, it has to be said, superb finish of this discreet amplifier but there is not much competition if you want a small and beautiful power amp so value ratings are tricky. If you want to build a decent system that won’t take over the living room or even the desk top this is one of the better places to start.”

Specification

Power output
2x 80W per channel (8 Ohm)
Peak power output
300W
Power supply
115V/230V
Colour
Black, Silver

General

Power output
2x 80W per channel (8 Ohm)
Peak power output
300W
Input impedance
22K Ohm
Output impedance
300m Ohm
Gain
25.5dB
Frequency response
10Hz-40kHz
Sensitivity
1Vrms
Signal to noise ratio
115dB
Total harmonic distortion
0.008/%
Power supply
115V/230V
Power consumption
12W
Impedance
1Vrms
Connections input
RCA L+R
Connections output
2x five-way speakers posts

Weight and dimensions

Weight (kg)
3.5
Dimensions (W x D x H) (mm)
215 x 320 x 50

In the box

Standard accessories
Power cable
User's manual

Colour

Colour
Black, Silver
Full specifications

Downloads

Verified owner
STA120
en-GB