PS Audio Stellar Amplifier S300: Unleashing Audiophile Excellence


When it comes to experiencing music at its finest, the quality of sound amplification plays a crucial role. Whether you are a music enthusiast or a professional audiophile, having a reliable and high-performance amplifier is essential to achieve the best audio experience possible. In this review, we will delve into the world of hifi sound amplifiers and explore the exceptional capabilities of the PS Audio Stellar Amplifier S300.

The PS Audio Stellar Amplifier S300 is a power amplifier that promises to deliver an extraordinary level of performance and fidelity. Designed with precision and innovation, this amplifier sets out to redefine what is possible in the realm of sound reproduction. With its advanced features and superior construction, it is poised to elevate your listening experience to new heights.

In today’s fast-paced world, where music has become an integral part of our daily lives, having an amplifier that can handle the demands of modern audio formats is paramount. The PS Audio Stellar Amplifier S300 rises to this challenge by offering a range of technical specifications and features that make it a standout choice for both casual listeners and discerning audiophiles.

In the following sections, we will explore the technical specifications, design, functionality, sound characteristics, and performance of the PS Audio Stellar Amplifier S300. By delving into these aspects, we aim to provide you with a comprehensive understanding of what this amplifier has to offer and how it can enhance your audio journey.

So join us as we embark on this sonic adventure with the PS Audio Stellar Amplifier S300 – a device that embodies excellence in sound amplification and promises to take your listening pleasure to unprecedented heights.

Technical Specifications

The PS Audio Stellar Amplifier S300 is a powerful amplifier that delivers exceptional audio performance. With its impressive technical specifications, this amplifier is designed to enhance your listening experience.

Featuring a power output of 300 watts per channel at 4 Ohms and 140 watts per channel at 8 Ohms, the Stellar Amplifier S300 packs a punch to drive even the most demanding speakers. It utilizes Class D technology with high current and low distortion, ensuring clean and accurate sound reproduction.

The signal-to-noise ratio (SNR) of 100 dB ensures that the amplifier produces minimal background noise, allowing you to fully immerse yourself in your music. Additionally, the total harmonic distortion (THD) of just 0.02% guarantees that the audio remains faithful to the original recording, without any noticeable distortion.

In terms of connectivity, the Stellar Amplifier S300 offers stereo XLR analog inputs for balanced connections, as well as stereo RCA inputs for traditional unbalanced connections. This versatility allows you to connect a wide range of audio sources to the amplifier. However, it does not feature an integrated DAC or support for digital audio formats.

The frequency response of this amplifier ranges from 10 Hz to 50 kHz, ensuring that it can faithfully reproduce both low and high-frequency sounds with precision and accuracy. It is compatible with speakers of various impedance levels, making it suitable for a wide range of speaker setups.

Overall, the technical specifications of the PS Audio Stellar Amplifier S300 highlight its ability to deliver powerful and high-quality audio performance. Whether you are listening to music or watching movies, this amplifier ensures that every detail is reproduced with clarity and depth.

Design and Construction

The PS Audio Stellar Amplifier S300 boasts a sleek and modern design that is sure to catch the eye of any audio enthusiast. Its black color adds a touch of elegance to any setup. The amplifier is crafted using high-quality materials, ensuring durability and longevity.

One notable design feature is the efficient cooling system incorporated into the amplifier. With its clever heat sink design, the S300 effectively dissipates heat, preventing overheating and maintaining optimal performance even during extended listening sessions.

In terms of reducing interference, the amplifier utilizes advanced shielding techniques to minimize electromagnetic interference and noise. This ensures a clean and pure audio signal, allowing for an immersive listening experience.

The connectors and switches on the S300 are of exceptional quality. They are sturdy and well-built, providing a secure connection for your audio devices. The layout of the connectors is also well thought out, allowing for easy access and hassle-free cable management.

Overall, the design and construction of the PS Audio Stellar Amplifier S300 showcase attention to detail and a commitment to delivering a premium product. From its sleek appearance to its robust build quality, this amplifier is a testament to PS Audio’s dedication to providing top-notch audio equipment.


The PS Audio Stellar Amplifier S300 offers a wide range of functionality, making it versatile and adaptable to various audio sources. With its multiple connectivity options, including XLR and RCA inputs, this amplifier can easily accommodate CD players, computers, smartphones, and other audio devices.

One notable feature is the availability of balance controls, allowing users to adjust the sound distribution between the left and right channels for a more personalized listening experience. Additionally, tone adjustments are available, enabling users to fine-tune the bass, treble, and midrange frequencies according to their preferences.

Furthermore, the amplifier provides different operating modes to cater to different listening scenarios. Whether you prefer a direct mode for pure audio reproduction or a surround mode for a more immersive soundstage, the Stellar Amplifier S300 has you covered.

Overall, the functionality of this amplifier ensures seamless integration with various audio sources and gives users the flexibility to customize their sound according to their individual preferences.

Sound Characteristics

The PS Audio Stellar Amplifier S300 boasts exceptional sound characteristics that will leave audiophiles impressed. With its state-of-the-art technology and innovative design, this amplifier delivers a captivating audio experience.

One of the standout features of the S300 is its ability to reproduce intricate details in the music. Whether you’re listening to classical compositions or modern pop tracks, this amplifier ensures that every nuance is brought to life. The instrument separation is remarkable, allowing each instrument to have its own space and clarity in the soundstage.

The bass response of the S300 is powerful and well-defined. It adds depth and impact to the overall sound, making it perfect for genres such as electronic music or hip-hop where a strong bass presence is desired. The control over the low frequencies is impressive, maintaining tightness and precision without overpowering other elements of the music.

When it comes to treble clarity, the S300 shines with its ability to reproduce high frequencies with precision and detail. The highs are crisp and articulate, adding sparkle and airiness to the sound. Whether it’s the delicate strumming of a guitar or the shimmering cymbals in a jazz piece, the S300 ensures that every high-frequency element is presented accurately.

Overall, the sound presentation of the PS Audio Stellar Amplifier S300 is nothing short of exceptional. It offers a balanced and natural sound signature that appeals to a wide range of music genres. From classical symphonies to rock anthems, this amplifier elevates every genre with its accurate reproduction and immersive soundstage.

No matter what type of music you prefer, the S300 has the ability to enhance your listening experience by faithfully reproducing each note and capturing all the emotions conveyed by the artist. Its versatility makes it suitable for a wide range of musical preferences, ensuring that every listener can enjoy their favorite tracks with unparalleled clarity and realism.

Sound Performance

The PS Audio Stellar Amplifier S300 delivers an exceptional sound performance that will transport you into a captivating auditory experience. This amplifier excels in faithfully reproducing audio signals, providing a level of clarity and detail that is truly remarkable.

One of the standout features of the S300 is its ability to maintain a balanced tonal representation across the entire frequency range. From the deep and powerful lows to the crisp and detailed highs, every note is reproduced with precision and accuracy. The amplifier’s impressive frequency response, ranging from 10Hz to 50kHz, ensures that no subtlety or nuance in the music is lost.

The dynamics of the S300 are truly impressive. It effortlessly handles both soft and delicate passages as well as explosive and impactful moments with finesse. The amplifier’s high signal-to-noise ratio of 100dB ensures that even the quietest details in the music are brought to life, creating a truly immersive listening experience.

The tonal balance of the S300 is exceptional, providing a natural and realistic soundstage. Instruments are presented with clarity and separation, allowing you to easily discern individual elements within complex musical arrangements. The amplifier’s low distortion rate of 0.02% ensures that the audio signal remains pure and uncolored, preserving the integrity of the original recording.

Whether you’re listening to classical symphonies, rock anthems, or electronic beats, the PS Audio Stellar Amplifier S300 delivers a sound performance that will captivate and delight even the most discerning audiophiles. Its ability to reproduce audio signals with such precision and fidelity is truly impressive.

In conclusion, the sound performance of the PS Audio Stellar Amplifier S300 is nothing short of exceptional. Its ability to faithfully reproduce audio signals with clarity, dynamics, and tonal balance across different frequency ranges sets it apart from other amplifiers in its class. If you’re looking for an amplifier that will elevate your listening experience to new heights, the S300 is undoubtedly a top contender.


The PS Audio Stellar Amplifier S300 offers several key advantages that set it apart from its competitors in the market. Firstly, its unique Analog Cell technology sets a new standard for audio performance in this price range. This patented, fully differential, discrete circuitry with zero feedback ensures exceptional clarity and detail, allowing the amplifier to extract even the finest nuances of microdynamics without sacrificing macrodynamics on louder music.

In terms of power output, the S300 delivers an impressive 300 watts per channel at 4 ohms and 140 watts per channel at 8 ohms. This level of power ensures that the amplifier can effortlessly drive a wide range of speakers and handle demanding musical passages with ease.

Another advantage of the S300 is its solid construction and sleek design. The amplifier boasts a sturdy build quality that not only enhances its durability but also helps to minimize vibrations and unwanted noise interference. Its compact size and black finish make it aesthetically pleasing and easy to integrate into any home audio setup.

When compared to other models in its price range, the PS Audio Stellar Amplifier S300 stands out for its exceptional sound quality and overall performance. Its Analog Cell technology provides a level of musicality and depth that is rarely found in amplifiers at this price point. The S300’s ability to accurately reproduce the intricate details of music, combined with its powerful output, makes it a standout choice for audiophiles who demand high-quality sound reproduction.

Furthermore, the S300 offers great value for money considering its performance capabilities. It competes favorably against more expensive amplifiers while delivering comparable or even superior sound quality. This makes it an attractive option for those seeking a high-end audio experience without breaking the bank.

In conclusion, the PS Audio Stellar Amplifier S300 has several advantages that make it a top contender in its class. With its innovative Analog Cell technology, powerful output, solid construction, and attractive design, this amplifier offers exceptional sound quality and performance. Its competitive pricing further enhances its appeal, making it a compelling choice for discerning audiophiles looking to elevate their listening experience.

Value for Money

The PS Audio Stellar Amplifier S300 offers exceptional value for money. With its impressive performance, extensive features, and reasonable price, it stands out as a compelling option in the amplifier market.

In terms of performance, the S300 delivers outstanding audio quality with its innovative Analog Cell technology. This patented circuitry ensures a rich and layered sound experience, capturing even the most intricate details of the music. The amplifier’s ability to maintain microdynamics without sacrificing macrodynamics is truly remarkable.

Additionally, the S300 boasts a wide range of features that enhance its versatility. With two channels of amplification and support for two pairs of speakers, it allows for flexible setup options to accommodate different listening preferences. The inclusion of stereo XLR and RCA inputs further expands connectivity possibilities.

Considering its competitive price point, the PS Audio Stellar Amplifier S300 offers an excellent balance between performance and affordability. It provides audiophiles with a high-quality amplifier that rivals more expensive options on the market. Whether you are a seasoned enthusiast or a casual listener looking to elevate your audio experience, the S300 offers exceptional value for money.

Overall, the PS Audio Stellar Amplifier S300 is a standout choice for those seeking a powerful and feature-rich amplifier without breaking the bank. Its impressive performance, extensive functionality, and reasonable price make it an excellent investment for any audio enthusiast.


In conclusion, the PS Audio Stellar Amplifier S300 is a remarkable amplifier that delivers exceptional audio performance. With its unique Analog Cell technology and class D with high current, low distortion, and linearity in the output stage, this amplifier offers a truly captivating sound experience.

The design and construction of the Stellar S300 are top-notch, featuring a sleek and compact black chassis. The absence of a remote control and volume control may be a drawback for some users, but it is compensated by the amplifier’s outstanding sound quality.

Functionally, the Stellar S300 provides two channels of amplification and supports the connection of two pairs of speakers. It also offers stereo XLR analog inputs and RCA line inputs. However, it lacks features such as an integrated DAC or headphone output.

The sound characteristics of the Stellar S300 are truly impressive. The Analog Cell technology ensures a rich and layered soundstage, preserving intricate details even in complex musical passages. The amplifier excels in reproducing microdynamics without compromising macrodynamics on louder music.

In terms of sound performance, the Stellar S300 delivers a sweet and tube-like sound combined with Class A MOSFETs. This combination creates a harmonious synergy between the preamplifier and power amplifier sections, resulting in an enchanting musical experience.

One of the notable advantages of the PS Audio Stellar Amplifier S300 is its affordable pricing considering its breakthrough performance. It offers exceptional value for money compared to other amplifiers in its class.

For those who refuse to compromise when it comes to their musical enjoyment, the PS Audio Stellar Amplifier S300 is an excellent choice. Its groundbreaking performance at an accessible price point makes it highly recommended for audiophiles seeking uncompromising sound quality.

In summary, the PS Audio Stellar Amplifier S300 impresses with its exceptional audio performance, innovative Analog Cell technology, and attractive pricing. While lacking certain features like remote control or integrated DAC, its captivating sound characteristics and overall value for money make it a worthy investment for music enthusiasts.

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