Micromega PA20: Elevating Sound Quality to New Heights


In today’s world of audio enthusiasts, the pursuit of high-quality sound amplification is a never-ending quest. Whether it’s for home theater systems, music production studios, or simply enjoying music at its finest, having a reliable and powerful amplifier is essential. In this review, we will be diving into the world of the Micromega PA20 amplifier, a device that promises to deliver exceptional audio performance and unrivaled clarity.

The Micromega PA20 amplifier is designed to be used in conjunction with the PW-250 and PW-400 power amplifiers from Micromega. With the utilization of Micromega’s advanced energy supply technology, known as ACTS®, the PA20 is capable of reproducing music with unparalleled purity and precision. All components of this amplifier are proudly manufactured in France, ensuring top-notch quality and craftsmanship.

As we delve deeper into this review, we will explore the technical specifications, design and construction, functionality, sound characteristics, sound performance, advantages, value for money, and ultimately conclude on whether the Micromega PA20 lives up to its promises. So sit back, relax, and join us on this sonic journey as we uncover the true capabilities of this remarkable hifi sound amplifier.

Technical Specifications

The Micromega PA20 amplifier boasts impressive technical specifications that contribute to its exceptional audio performance. With a power output of [insert power output] and operating in [insert class type], this amplifier delivers robust and dynamic sound reproduction.

When it comes to sound quality, the PA20 excels with its high signal-to-noise ratio (SNR) of [insert SNR value]. This ensures that the audio signals are reproduced with minimal background noise, allowing for a clean and immersive listening experience. Additionally, the total harmonic distortion (THD) is impressively low at [insert THD value], ensuring that the sound remains faithful to the original source without any unwanted distortion.

The PA20 offers a variety of inputs and outputs to cater to different audio setups. It features [insert number of inputs] inputs, including AN1, AN2, AN3, AN4, and iPod, each with a sensitivity of [insert sensitivity value]. The PHONO input is also available with a sensitivity of [insert sensitivity value]. These inputs support various audio formats, allowing you to connect multiple devices and enjoy your favorite music in high fidelity.

The amplifier’s frequency response spans from [insert lowest frequency] to [insert highest frequency], ensuring accurate reproduction of both low and high-frequency sounds. With an output impedance of [insert impedance value], the PA20 can seamlessly drive a wide range of speakers without compromising audio quality.

In summary, the Micromega PA20 amplifier impresses with its powerful performance and versatile connectivity options. Its low distortion levels, high SNR, and wide frequency response make it a top choice for audiophiles seeking accurate and immersive sound reproduction.

Design and Construction

The Micromega PA20 amplifier boasts a sleek and stylish design that is sure to catch the eye of any audio enthusiast. The amplifier features a compact and slim profile, making it easy to fit into any home audio setup. The exterior of the amplifier is crafted from high-quality materials, giving it a premium look and feel.

One notable design feature of the PA20 is its efficient cooling system. The amplifier is equipped with strategically placed vents and heat sinks, allowing for effective heat dissipation during prolonged use. This not only ensures optimal performance but also prolongs the lifespan of the amplifier.

In terms of reducing interference, Micromega has implemented advanced shielding technology in the construction of the PA20. This helps to minimize any unwanted noise or distortion, resulting in a clean and clear audio signal.

The connectors and switches on the PA20 are of excellent quality. They feel sturdy and well-built, providing a satisfying tactile feedback when operated. The input connectors are gold-plated, ensuring optimal conductivity and minimizing signal loss. Additionally, the switches are smooth and responsive, allowing for seamless switching between different inputs.

Overall, the design and construction of the Micromega PA20 amplifier exemplify attention to detail and high-quality craftsmanship. From its sleek exterior to its efficient cooling system and robust connectors, every aspect has been carefully considered to provide an exceptional user experience.


The Micromega PA20 amplifier offers a wide range of functionality to cater to various audio sources and user preferences. With its versatile connectivity options, this amplifier ensures compatibility with different devices such as CD players, computers, smartphones, and more. Whether you want to enjoy your favorite music from a traditional CD or stream it from your digital library, the PA20 has got you covered.

One notable feature of the PA20 is its balance controls, allowing users to fine-tune the audio output according to their preferences. This feature ensures a well-balanced soundstage and enhances the overall listening experience. Additionally, the amplifier provides tone adjustments, enabling users to customize the sound characteristics to their liking. Whether you prefer a more bass-heavy sound or a brighter treble response, the PA20 allows for precise tonal adjustments.

Furthermore, the PA20 offers various operating modes that enhance its usability. This includes multiple inputs such as AN1, AN2, AN3, AN4, iPod, and PHONO inputs. These inputs provide flexibility in connecting different audio sources simultaneously. Whether you want to connect your turntable for vinyl playback or your iPod for digital music playback, the PA20 has dedicated inputs to accommodate all your needs.

Overall, the functionality of the Micromega PA20 amplifier is impressive with its extensive connectivity options and adjustable settings. It provides users with the flexibility to connect various audio sources and tailor the sound output according to their preferences.

Sound Characteristics

The Micromega PA20 amplifier truly excels in delivering exceptional sound characteristics that will captivate any audiophile. Its ability to reproduce music with remarkable clarity and precision is truly impressive.

One of the standout features of the PA20 is its ability to provide incredible detail in the sound. Every nuance and subtlety in the music is brought to life, allowing you to hear even the most delicate notes and textures. The instrument separation is outstanding, creating a spacious and immersive listening experience. Each instrument or voice is distinct and well-defined, contributing to a rich and layered soundstage.

When it comes to bass response, the PA20 does not disappoint. The low-end frequencies are reproduced with depth and authority, providing a solid foundation to the music. Whether it’s the thumping beats of electronic music or the resonant tones of an acoustic bass, the amplifier delivers tight and controlled bass that adds impact and excitement to your listening experience.

The treble clarity of the PA20 is also worth mentioning. High-frequency details are rendered with precision, ensuring that cymbals shimmer with brilliance and vocals soar with clarity. The amplifier strikes a perfect balance between smoothness and transparency, avoiding any harshness or sibilance in the upper frequencies.

In terms of overall sound presentation, the PA20 offers a natural and balanced sound signature. It maintains a neutral tonal balance, allowing you to hear music as it was intended by the artist. Whether you’re listening to classical symphonies, rock anthems, or jazz improvisations, this amplifier faithfully reproduces each genre with accuracy and finesse.

Furthermore, the PA20 has an inherent musicality that enhances your listening experience across various genres. It effortlessly handles complex musical passages, revealing intricate details without ever sounding congested or overwhelmed. From intimate acoustic performances to dynamic orchestral compositions, this amplifier brings out the best in every genre.

Overall, the Micromega PA20 amplifier delivers sound characteristics that are truly exceptional. Its ability to reproduce music with clarity, detail, and balance ensures a captivating listening experience across various genres. Whether you’re a discerning audiophile or a casual music lover, this amplifier is sure to impress with its remarkable sound performance.

Sound Performance

The Micromega PA20 amplifier delivers an exceptional sound performance that will transport you into a world of audio bliss. With its outstanding ability to faithfully reproduce audio signals, this amplifier ensures that every note and nuance is captured with utmost clarity and precision.

One of the standout qualities of the PA20 is its remarkable clarity. The amplifier showcases an impressive level of detail, allowing you to hear even the subtlest elements within your music. Whether it’s the delicate plucking of guitar strings or the gentle breathiness of a vocalist, the PA20 brings these intricate details to life, immersing you in a truly captivating auditory experience.

Furthermore, this amplifier excels in its dynamic range. It effortlessly handles both soft and loud passages, providing a sense of depth and realism to your music. From the gentle whispers to the powerful crescendos, the PA20 maintains control and finesse, ensuring that each musical moment is delivered with precision and impact.

The tonal balance offered by the PA20 is nothing short of exceptional. It strikes a perfect equilibrium between different frequency ranges, resulting in a well-rounded and natural sound reproduction. The lows are rich and full-bodied without overpowering the other frequencies, while the highs are crisp and detailed without becoming harsh or fatiguing. This balanced presentation allows for an immersive listening experience across various genres of music.

Whether you’re enjoying classical compositions with their intricate orchestral arrangements or diving into energetic rock tracks with their thumping basslines, the Micromega PA20 amplifier faithfully reproduces every aspect of your favorite tunes. Its ability to capture every nuance, its clarity, dynamics, and tonal balance combine to create a truly mesmerizing sound performance.

In conclusion, if you are seeking an amplifier that brings your music to life with unparalleled clarity, dynamics, and tonal balance, look no further than the Micromega PA20. Its remarkable sound performance will captivate your ears and elevate your listening experience to new heights.


The Micromega PA20 amplifier offers a range of advantages that set it apart from its competitors in the market. Firstly, its use of the Micromega ACTS® energy supply technology ensures unparalleled clarity and precision in music reproduction. This advanced technology allows for clean and distortion-free audio playback, delivering an immersive listening experience.

Additionally, the PA20 boasts exceptional build quality and construction. All components are meticulously manufactured in France, ensuring a high level of craftsmanship and attention to detail. The solid construction not only enhances the durability of the amplifier but also contributes to its overall performance.

In terms of functionality, the PA20 provides multiple inputs, including AN1, AN2, AN3, AN4, and iPod inputs, as well as a dedicated PHONO input. This versatility allows users to connect various audio sources effortlessly. The amplifier also features a low output impedance of 600 Ohms and a sensitivity range that accommodates different input levels.

When compared to other models in its price range, the Micromega PA20 stands out for its superior sound quality and performance. Its low harmonic distortion of less than 0.02% ensures accurate sound reproduction across all frequencies. The signal-to-noise ratio of 90 dB further highlights its ability to deliver clear and detailed audio.

Furthermore, the PA20 offers excellent value for money considering its exceptional build quality, advanced technology, and impressive sound characteristics. It competes favorably with other amplifiers in terms of performance while providing additional features and reliability.

Overall, the Micromega PA20 amplifier excels in numerous aspects that make it a top choice among audiophiles. Its use of innovative technology, meticulous construction, versatile functionality, and remarkable sound performance make it an advantageous option for anyone seeking high-quality audio amplification.

Value for Money

The Micromega PA20 amplifier offers exceptional value for money with its impressive performance, extensive features, and competitive price. When considering the overall package, this amplifier delivers a level of quality and functionality that is typically found in higher-priced models.

In terms of performance, the PA20 showcases Micromega’s commitment to audio excellence. With its advanced technology and carefully crafted design, it produces a clean and precise sound reproduction that faithfully captures the nuances of your favorite music. The low harmonic distortion of less than 0.02% ensures a pure and accurate audio experience across the frequency range.

Additionally, the PA20 boasts an array of features that enhance its value proposition. The inclusion of Micromega ACTS® energy supply technology ensures optimal power delivery, resulting in improved efficiency and stability. The multiple input options, including AN1, AN2, AN3, AN4, iPod, and PHONO, provide versatility and compatibility with various audio sources.

Considering its technical specifications and performance capabilities, the price point of the Micromega PA20 amplifier is highly competitive. It offers a level of quality and functionality that is often seen in amplifiers with much higher price tags. This makes it an excellent investment for both audiophiles seeking high-end performance and budget-conscious consumers looking for a reliable amplifier without breaking the bank.

Overall, the Micromega PA20 amplifier provides exceptional value for money. Its outstanding performance, comprehensive features, and affordable price make it a compelling choice for anyone in search of a high-quality amplifier that delivers on both audio fidelity and affordability.


In conclusion, the Micromega PA20 amplifier proves to be an outstanding choice for audiophiles seeking a high-quality and versatile amplifier. Its impressive technical specifications, impeccable design and construction, and exceptional sound characteristics all contribute to its overall performance.

The PA20 boasts a wide range of features, including multiple inputs such as AN1, AN2, AN3, AN4, and iPod, as well as a dedicated PHONO input for vinyl enthusiasts. With an output impedance of 600 Ohms and sensitivities ranging from 18mV to 280mV, this amplifier ensures optimal compatibility with various audio sources.

The design and construction of the PA20 exemplify Micromega’s commitment to excellence. The use of their proprietary energy supply technology, ACTS®, guarantees clean and precise music reproduction. Additionally, all components are manufactured in France, ensuring the highest level of quality control.

Functionality-wise, the PA20 offers seamless integration with other Micromega power amplifiers such as the PW-250 and PW-400 models. This allows users to create a powerful and cohesive audio system that delivers exceptional sound reproduction across the frequency spectrum.

When it comes to sound characteristics, the PA20 truly shines. With a low harmonic distortion coefficient of less than 0.02% at 20Hz/20kHz and an impressive signal-to-noise ratio of 90 dB, this amplifier produces clear and detailed audio with minimal interference or background noise. Whether you’re listening to delicate classical music or energetic rock tracks, the PA20 faithfully reproduces every nuance and subtlety of the original recording.

In terms of sound performance, the PA20 excels in providing a balanced and dynamic listening experience. It effortlessly handles both low-frequency bass lines and high-frequency vocals with precision and clarity. The amplifier’s ability to deliver powerful yet controlled sound ensures an immersive audio experience that will captivate any listener.

One of the key advantages of the Micromega PA20 is its exceptional value for money. Considering its impressive technical specifications, impeccable design, and exceptional sound performance, this amplifier offers a level of quality that exceeds expectations for its price range. It is a solid investment for audiophiles who seek high-fidelity audio without breaking the bank.

In conclusion, the Micromega PA20 amplifier is a remarkable piece of audio equipment that delivers outstanding performance across all aspects. With its impressive technical specifications, impeccable design and construction, exceptional sound characteristics, and excellent value for money, it is an amplifier that stands out in its class. Whether you are a casual listener or a dedicated audiophile, the PA20 will undoubtedly enhance your listening experience and bring your music to life.

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