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NuPrime Audio STA-6

Class A+D Stereo Amplifier Brigeable into a 160 watt Mono Amplifier

The all new NuPrime Audio STA-6 stereo amplifier offers great audiophile sound in a well designed, compact component that's remarkably affordable. The STA-6 has many of the same sonic qualities as the award winning NuPrime Audio IDA-16, winner of The Absolute Sound Product of the Year Award 2015 and NuPrime Audio IDA-8, winner of he Absolute Sound Product of the Year Award and Golden Ear award for 2016 as well as the Soundstage Product of the Year Award.

With 2 X 90W Class A+D stereo amp, bridgeable into a 160W mono amp, STA-6 is designed with enhanced even-order harmonic circuitry that produces sonic characteristic similar to NuPrime STA-9, but leaning toward neutral with a slight hint of warmth. The STA-6's spacious, transparent, dynamic and luxuriously textured soundstage has to be heard to believed.

The STA-6 amplifier is derived from the Single End Class A Module + Class D design first introduced in the STA-9. By joining a powerful high impedance singled ended amplifier circuit in the preamp stage with a well integrated Class-D power stage, the STA-6 offers the richness of Class A sound with the remarkable speed and clarity of NuPrime Class-D design. Audio enthusiasts are bound to be impressed.

The NuPrime amp circuit improves on traditional Class-D design by using a self-oscillating circuit to generate pulse-width modulation. The amplifier switches at a frequency of 500kHz, well beyond the compact disc’s 44.1kHz sampling rate. Most class-D amps switch at 300kHz or lower. A new low noise switching power supply is designed specifically to complement the STA-6 amplifier. The overall result is unprecedented transient speed, smooth with lots of details and an almost shocking level of dynamic impact.

The STA-6's frequency response to 50 kHz elevates vocals into emotional experiences; similarly, instrumental upper registers mimic a live performance’s shimmering heights.

The STA-6 is designated for NuPrime Commercial product line and it is designed to be highly reliable under no-load condition and enhanced short circuit protection.

    The NuPrime Sound

    • Vast soundstage
    • Wide, lightning-fast dynamics
    • Ultra-low distortion and noise
    • Music emerges from a pristine background, with delicate details and nuances intact

    In summary, NuPrime’s sonic character stands well apart from – and indeed above – the soft, cushy sound we often associate with most tubed amplification or the dry, clinically edgy sound we often associate with solid-state and switching technology. Rarely does an amp achieve an ideal balance of richly textured timbres and harmonics, bottom-end authority, startling dynamics, exquisite low-level detail, and a fully revealed, fully dimensional soundstage against a backdrop of mile-deep silence.


    Inputs: RCA: Un-Balanced input x 1
    Outputs: Stereo Speaker Out x 1 or Mono Speaker Out x 1
    Power: 2 x 90W / 1 x 160W @ 8 & 4 Ohms. Same power at 8 & 4 Ohms as the output power is limited by the power supply.
    Input Impedance: 47k Ohms
    Gain: x 28
    Signal to Noise Ratio: > -90dB at 1W, 10W, 100W
    THD+N: 0.01% (Stereo) / 0.01% (Mono)
    Frequency Response: 10Hz to 50kHz
    Worldwide AC voltage: 90 VAC~250 VAC
    Dimensions: 200 mm W x 184 mm D x 60 mm H (including feet)
    Weight: 1.6 kg
     Color: Black

      In a 110V outlet, the idle-power consumption is below 14W. In a 230V outlet, the idle-power consumption is below 16W.

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