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.
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
- TRIGGER OUT (12V,＜0.1A)
- DC 5V output 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)
Network & Wireless Audio (2)
NuPrime’s family of streaming products complete your TIDAL high fidelity music experience. Add speakers to the Omnia A300SE Streaming Integrated Amp or pair the Stream-9 transport with a high-end DAC. NuPrime also offers the NuPrime Omnia Stream Mini, Stream Mini DAC, and other products to satisfy all your streaming needs.
User Guide
WR-2 Network Player & STA-100 Power Amplifier Review by audioman.co.kr
Nuprime WR-2 Network Player & STA-100 Power Amplifier Review by audioman.co.kr
This is the Cataclysm of Class D Amplification! Would you believe it if it sounded like a tube with Class D amplification?
STA-100 stereo power amplifier – Tiny but Mighty
– John Ransley, Totally Wired Limited
“This is NuPrime at their very best – the new STA-100 is their most affordable power amp yet, a radical internal design and fantastic sound quality that will have you wondering how such a small box can produce such a big sound.
…
The STA-100 is real high end – it’s expressive and detailed, pacy and involving. And when NuPrime describe it as having ‘explosive power at high volume’, they aren’t kidding; this baby can go! And it just gets better as it warms up…The background noise levels are vanishingly low.
…
I’m struggling to find a downside…But more importantly this model is a welcome addition and delivers an authentic NuPrime experience to a whole new audience.”