Plinius Audio SA-250 manual

Class A has always been regarded as the perfect operating mode for audio amplifiers. Many leading amplifier designers and manufacturers world wide recognise that a well designed Class A circuit has inherently lower distortion than any other design.

Class A circuit topology is one in which the total current the amplifier is capable of delivering, is kept flowing in the circuit regardless of demand. In a conventional or Class AB amplifier circuit this current flow varies when demand varies. Furthermore, as current varies, the voltage on the rails (as seen by the output stage) varies too. In a Class A circuit, current draw should be constant therefore there is an absence of the power supply modulation common in Class AB design amplifiers. Pinpoint images, tonal clarification, intertransient silence, more readily defined dynamic shadings, inner detail and authority are all inherent advantages of good Class A design.

SA-250 specifications

The Plinius Audio SA-250 is a remarkable power amplifier that has garnered attention for its robust build quality and superior sound performance. Known for its elegant design and advanced technology, the SA-250 is a favorite among audiophiles and music enthusiasts who seek high-fidelity audio experiences.

One of the standout features of the SA-250 is its solid-state architecture, which leverages a fully complementary output stage to ensure minimal distortion and maximum power efficiency. This amplifier is rated at 250 watts per channel into 8 ohms, providing ample power to drive a variety of loudspeaker types. With a dynamic power that reaches up to 500 watts into 4 ohms, the SA-250 can handle even the most demanding audio setups with ease.

The amplifier incorporates Plinius' proprietary New Zealand-crafted transformer, which offers excellent energy storage and helps maintain stable performance. This transformer design plays a crucial role in providing the SA-250 with a smooth, dynamic sound that retains musicality and clarity across all frequencies. The amplifier’s warm, analog sound signature is a testament to Plinius' commitment to creating equipment that enriches the listening experience.

Additionally, the SA-250 utilizes advanced circuitry to minimize signal degradation while maximizing bandwidth. Features such as premium-quality components, an extensive power supply, and meticulously engineered circuit layouts work together to produce a refined soundstage, detailed imaging, and remarkable instrument separation. The amplifier’s design not only emphasizes performance but also aesthetic appeal, with a polished aluminum chassis that fits seamlessly into any audio setup.

The amplifier's operational flexibility is another highlight, as it includes both balanced and unbalanced inputs, allowing for easy integration with a variety of preamps and audio sources. Its user-friendly controls and indicators further enhance the listening experience, making it simple to operate even for those new to high-end audio systems.

In summary, the Plinius Audio SA-250 stands out as a powerful and elegant amplifier that embodies the ideal balance of technology and artistry. Its ability to deliver a rich and immersive sound, paired with its reliable performance and sophisticated design, solidifies its position as a top choice for audiophiles seeking ultimate audio quality. Whether used in a dedicated listening room or as part of a larger home theater setup, the SA-250 continues to impress and inspire.