2019, 2022 Editors’ Choice Award - The Absolute Sound
Near Reference Quality at an Entry Level Price
The NuPrime STA-9 is a 2 X 120-watt Class A+D stereo amp that's bridgeable into a 290-watt mono amp. It's designed with enhanced even-order harmonic circuitry that mimics the most attractive features of tube amp sound without the drawbacks and limitations that tube gear is often prone to.
The STA-9 won an Editors' Choice Award from The Absolute Sound magazine, which noted, "Producing 120wpc and weighing just under 10.5 pounds, the STA-9 uses a Class A input circuit along with a Class D output circuit… In monoblock mode, the STA-9 produced powerful bass, even with small KEF speakers."
The compact footprint and stereo/mono amp design makes the STA-9 a very versatile performer. It offers near reference class sound quality at an entry level price.
Pure Musical Enjoyment
The STA-9 is highly reliable under no-load condition and features enhanced short circuit protection. It isn't fussy about your choice of loudspeakers. It provides high output current drive capability for low impedance speakers as well as a 600 kHz switching frequency for accurate reproduction of the musical signal. The signal path avoids cross-linking capacitors, thus achieving a frequency response at DC level for pure musical enjoyment.
A new linear power supply incorporates a high efficiency toroidal transformer. Benefits of this transformer are reduced high frequency noise and strengthened low frequency performance.
Connections consist of one stereo pair of RCA unbalanced inputs and one stereo pair of XLR balanced input, plus stereo speaker out and mono speaker out.
