The NuPrime STA-9 is a compact yet powerful Class D amplifier that delivers a rich, engaging, and spacious sound. With a Class A biased JFET input stage and a high 550kHz switching frequency, it refines traditional Class D performance by reducing noise and enhancing tonal depth. Offering 120W per channel, or 290W in bridged mono mode, the STA-9 provides ample power while maintaining an effortless and refined musicality. Its robust build quality, premium connectors, and thoughtful engineering make it a compelling choice for audiophiles seeking high performance in a small footprint.