Nuprime Omnia STA-100 stereo-power amp

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Nuprime Omnia STA-100 stereo-power amp

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, over-temperature, 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.


  • 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.
  • Stereo Speaker Out x 1
  • TRIGGER OUT (12V,<0.1A)
  • DC 5V output via Type-A USB Connector (Maximum output 1.6A)
  • 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)
You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.