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Commercial-grade Stereo Amp with Bridgeable Mono Mode
NuPrime's STA-6 is a commercial-grade, high end power amplifier that will exceed the expectations of anyone who picks it for a hi-fi or home theater system. The STA-6 is a 2 X 90-watt stereo amp that's bridgeable into a 160-watt mono amp. The Class A+D design has enhanced even-order harmonic circuitry and 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.
Connections consist of one pair of RCA inputs (use one for monoblock mode), and the outputs consist of one pair of speaker outs (use one for monoblock mode).
Unprecedented Smoothness and Transient Speed
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.
Designated for NuPrime's commercial product line, the STA-6 is engineered to be highly reliable under no-load condition and includes enhanced short circuit protection.