Sugden Sapphire FBA-800 Stereo Power Amplifier

Unveiling the Sugden Sapphire FBA-800 Stereo Power Amplifier: A Masterpiece in Class A Amplification

When it comes to high-fidelity audio equipment, few names resonate with as much reverence as Sugden Audio. Known for their unwavering commitment to quality and innovation, Sugden has once again raised the bar with their latest offering—the Sugden Sapphire FBA-800 Stereo Power Amplifier. This blog delves into the intricate details of this remarkable piece of audio engineering, exploring its features, specifications, and what makes it a standout in the world of high-end audio.

The Essence of Class A Amplification

At the heart of the Sugden Sapphire FBA-800 lies its pure Class A amplification design. Unlike other amplifier classes that switch on and off to save power, Class A amplifiers operate continuously, ensuring that the signal is amplified without any distortion or loss. This results in an unparalleled sound quality that captures every nuance and detail of your music.

Key Features and Specifications

Power Output and Frequency Response

The FBA-800 delivers a robust 40 Watts per channel into 8 ohms when both channels are working. This substantial power output ensures that it can drive a wide range of loudspeakers with ease. The frequency response ranges from 20Hz to 80kHz at 0dB, providing a broad spectrum that covers all audible frequencies and beyond. The bandwidth extends even further, from 6Hz to 113kHz at -3dB points, ensuring that no detail is lost.

Low Noise Floor and Distortion

One of the standout features of the FBA-800 is its incredibly low noise floor, boasting a signal-to-noise ratio greater than 96dB. This ensures that even the quietest passages in your music are reproduced with crystal clarity. Additionally, the distortion at 1 Watt and 1 kHz is impressively low at less than 0.05%, making it one of the cleanest amplifiers available.

Advanced Circuitry

The amplifier operates in a fully balanced mode from input to output, utilizing two amplifiers per channel in a bridged configuration. This design offers several advantages including better power output relative to voltage rails (x2), low output impedance, and improved load tolerance. The D.C. coupling with servo lock ensures excellent low-frequency detail while a D.C. protection circuit safeguards your equipment.

Build Quality and Design

Sugden’s commitment to quality extends beyond just performance; it’s evident in the build quality as well. The FBA-800 features gold-plated circuit boards and high-quality internal silver wiring designed for long life and ultimate musical performance. The use of through-hole components instead of surface-mount ones enhances durability and reliability.

The power supply is another area where Sugden has not compromised. It features a custom-made bi-filar wound transformer with four separate windings, ensuring stable power delivery under all conditions. The main smoothing capacitors are specially developed for professional audio applications, offering excellent ripple characteristics and long life.

User Experience

Operating the FBA-800 is straightforward thanks to its intuitive front panel controls which include an input selector (RCA or XLR) and a gain selector for input attenuation (6dB). The amplifier also includes stereo line-level inputs and stereo balanced outputs via multi-way locking binding posts.

Conclusion

In summary, the Sugden Sapphire FBA-800 Stereo Power Amplifier is a testament to what can be achieved when decades of experience meet cutting-edge technology. Its pure Class A design offers unmatched sound quality while its robust build ensures longevity. Whether you’re an audiophile looking for the ultimate listening experience or someone who appreciates finely crafted audio equipment, the FBA-800 is sure to impress.