Delivers genuine performance and value


  • High power – 125-Watts (x2) channels.
  • Proprietary high-speed, negative feedback design.
  • Very high efficiency PWM circuit topology.
  • Available in stylish Silver or Black finish.



NuForce developed the STA120 amplifier for the audio enthusiast as an audiophile-grade stereo power amp housed in an elegant, modestly sized enclosure. Offering quality parts throughout and advanced, high-efficiency switching amplifier operation, the STA120 delivers genuine NuForce performance and value.

Technology & Craft

The STA120’s size belies its power: a robust 125 Watts into 4-Ohms per channel. Sharing technology with NuForce’s award-winning mono switching amplifiers, 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 effortless, 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.

The STA120 is destined to find 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.


Connections – InputRCA
Connections – OutputFive-way binding posts
Connections – ControlN/A
Power output85W x2Ch @ 8 Ohm
125W x2Ch @ 4 Ohm
Recommended headphone impedanceN/A
Balanced modeN/A
Frequency response10Hz – 40kHz
Signal to noise ratio (SNR)115dB
Total harmonic distortion + noise ( THD + N)0.008%
Power supply115 / 230V
Weight (kg)3.5
Dimensions (W x D x H) (mm)215 x 230 x 50


+ AC Power Cord
+ Quick Start Guide
+ Safety Instructions



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 "
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. "
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 "
"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"

“A better alternative proved to be Triangle Comete Ez standmounts, these have horn loaded tweeters for maximum dynamics and this combined with a tight bottom end worked a treat. Now the likes of Boris Blank, The Civil Wars and Trentmøller could be enjoyed to the max, with plenty of scale and energy.” "
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. "
功率不大的STA120推起Spendor非常轻松,在连续通电24小时之后,声音几乎可称得上宽松,让人不敢相信那么小的机箱中能蕴含如此充沛的能量。虽然碍于Spendor对于传统英国声的坚守而未臻至善,但我敢说,同价位模拟放大器没有一台可以达到ST120的透明度。 "

Optoma NuForce(奥图码新智)

STA120 后级放大器

作为一款入门及后级放大器,Optoma NuForce STA120 有著优秀的推动能力,三频表现均衡,延伸出色。声音清晰度高,气势足,有相当的还原效果,后级放大表现令人满意。 "
年度最佳组合 完美声效

NuForce新智是著名的影音设备大厂奥图码旗下的高端音响品牌,专门设计和生产发烧级的影音设备。具有特色的是,在NuForce很多产品的设计中,与时俱进的将无线数字技术与高保真声学相结合。这套STA120立体声后级放大器与WDC200无线解码器组合成的系统,正是基于这种理念下的产物。 "

作为老烧,笔者对各种Hi-Res格式一开始是拒绝的 - 没有介质的东西,怎么可能像LP、CD那样一张永流传?然而历史车轮滚滚向前,许多新曲目只发布Hi-Res格式,Tidal上精彩的录音浩如烟海,没有一套新系统是万万不可的。NuForce新智STA120+DAC-80正为此而来。 "
窈窕身材爆发充足能量。说实话,如果你闭眼去听 STA120 的

声音,你很难想象这是一台如此小尺寸的机身所能够发出来的声音。STA120拥有非常充沛的能量感,这在声音中就有着非常明显的体现。与多数的 A类功放不同,D类功放在声音上更加强调速度感, "

STA120 Support