The Plessis Amplifier Model S1 is a meticulously crafted integrated stereo amplifier designed for audiophiles who appreciate purity in sound. Developed by Charl Du Plessis in collaboration with a Chinese manufacturing partner, the S1 represents a new generation of audiophile-grade products that combine exceptional quality with value. The amplifier’s design emphasizes high performance and precision, incorporating numerous military-grade Japanese components to ensure superior sound quality.
Under the hood, the S1 features a robust power supply with a large, ceramic-encased transformer that is isolated from the preamp stages and PCBs to minimize interference. This thoughtful internal layout ensures a clean signal path, with the volume control and input selector directly coupled to the PCBs, reducing signal loss. The S1 is rated to deliver 80 watts RMS into 8 ohms and 130 watts into 4 ohms, providing ample power to drive a wide range of speakers, from demanding professional monitors to more conventional home audio speakers.
The S1’s frequency response spans from an impressive 5Hz to 110kHz, far beyond the range of human hearing, making it ideal for high-resolution formats like Super Audio CD. This amplifier is designed with a minimalist aesthetic, featuring four line-level inputs, all unbalanced, and no tone controls, staying true to its audiophile roots. The build quality is equally impressive, with large, high-quality 4mm binding posts for speaker connections and a compact, slim remote control for basic functions like volume, mute, and standby.
In use, the Plessis S1 delivers a balanced and revealing sound, capable of handling everything from heavily processed rock tracks to large-scale classical compositions with ease. Its bass warmth and openness create a natural timbre, adding to the music’s emotional impact. Whether driving high-end speakers or more modest setups, the S1 excels in delivering a musical experience that is both engaging and enjoyable.
In good secondhand condition, the Plessis Amplifier Model S1 offers a unique combination of performance, build quality, and value, making it an ideal choice for those who appreciate pure, unadulterated sound. Pair it with quality sources and speakers, and immerse yourself in the music.
Product Type: Integrated stereo amplifier
Number of Inputs: 4 x unbalanced, line-level
Power Output: 80 watts RMS (8 ohms); 130 watts RMS (4 ohms)
Total Harmonic Distortion: 0.066% (1kHz, 80W, 8 ohms); 0.066% (10kHz, 80W, 8 ohms)
Gain: 38.3dB
Signal To Noise Ratio: 97dB (without weight))
Frequency Response: 5Hz-110kHz (-3dB, 80W)
Load/Impedance: 4-16 ohms
Input Sensitivity: 300mV (line-level)
Input Impedance: 73 kohm (line-level)
(Technotalk specifications and recommended retail prices are supplied by the manufacturer)
Vital Statistics
Dimensions: 430 x 80 x 330mm; Weight: 10kg;
English (US)