STA-100

US$499.00

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.

Availability: 8 in stock

Description

Features

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.

Specification

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)

Manual

Download STA-100 Manual

Review

STA-100 Review by Steven Stone, PMA Magazine

Here are the notable statements from the review:
…”Sonically, the STA-100 is your classic, squeaky clean, quiet as a dead mouse, neutral-sounding power amplifier.”…
…”I was impressed by the clarity and precise instrument placement within the soundstage. Even the low-level feedback howl during the tune’s opening notes came through clearly.”…

STA-100 Review by John Ransley, Totally Wired

– John Ransley, Totally Wired Limited
…Tiny but Mighty’…
…”I’m struggling to find a downside. In fact the only one will be for us in that people may be so happy with the entry level to NuPrimes’ range that they choose not to look further up the food chain to the even better models; But more importantly this model is a welcome addition and delivers an authentic NuPrime experience to a whole new audience.”…

STA-100 Power Amplifier Review by Fullrange (Korea)

NuPrime-X STA-100 Power Amplifier Review by Fullrange.
This is the Cataclysm of Class D Amplification! Would you believe it if it sounded like a tube with Class D amplification?