Electrocompaniet ECI 6: A High-Fidelity Amplifier Masterpiece


In today’s world of high-fidelity audio, sound amplification plays a crucial role in delivering an immersive and captivating listening experience. Whether you’re a music enthusiast or a home theater aficionado, having a high-quality amplifier is essential to bring out the best in your audio setup.

In this review, we’ll be taking a closer look at the Electrocompaniet ECI 6 amplifier. This balanced integrated amplifier belongs to the prestigious High-End class and continues the legacy of excellence set by its predecessors from Electrocompaniet. With its impressive power output of 2×125 Watts and four analog inputs, the ECI 6 promises to deliver exceptional sound quality while adhering to the renowned Electrocompaniet standards.

Throughout this review, we will delve into the technical specifications, design and construction, functionality, sound characteristics, sound performance, advantages, value for money, and ultimately provide our conclusion on whether the Electrocompaniet ECI 6 lives up to its reputation as a top-of-the-line amplifier.

So join us as we explore the world of high-fidelity sound reproduction with the Electrocompaniet ECI 6 amplifier and discover how it can elevate your audio experience to new heights.

Technical Specifications

The Electrocompaniet ECI 6 amplifier is a high-end class stereo amplifier that delivers a powerful output of 2×125 Watts. It features a balanced input (XLR) and three unbalanced (RCA) stereo inputs, allowing for versatile connectivity options with various audio sources. The amplifier utilizes a fully balanced circuit topology, ensuring optimal signal integrity and minimizing any potential interference.

With an impressive signal-to-noise ratio (SNR) of 135 dB and a total harmonic distortion (THD) of just 0.003%, the ECI 6 guarantees exceptional sound quality with minimal distortion or background noise. This ensures that the audio reproduction is accurate, detailed, and faithful to the original recording.

The amplifier supports a wide frequency response range, from 1 Hz to 150,000 Hz, allowing it to reproduce both deep bass frequencies and crisp high frequencies with precision. It is compatible with speakers ranging from 4 Ohms to 8 Ohms impedance, making it suitable for a variety of speaker setups.

In terms of connectivity, the ECI 6 offers two types of outputs – balanced (XLR) and unbalanced – providing flexibility in connecting to different types of audio systems. However, it does not feature built-in USB playback or support for internet radio or Bluetooth connectivity.

The ECI 6 amplifier’s design and construction are top-notch, reflecting Electrocompaniet’s commitment to quality. It boasts a sleek black finish and a sturdy build that exudes elegance and durability. The front panel features a transparent acrylic panel with a large blue display indicating the selected input source and volume level. The control buttons are conveniently placed on the right side of the panel for easy access.

Overall, the Electrocompaniet ECI 6 amplifier offers impressive technical specifications that ensure outstanding audio performance. Its power output, low distortion levels, wide frequency response range, and flexible connectivity options make it an excellent choice for audiophiles seeking a high-quality amplifier to elevate their listening experience.

Design and Construction

The Electrocompaniet ECI 6 amplifier boasts a sleek and elegant design that exudes sophistication. Its black color adds a touch of modernity to any audio setup. The amplifier is constructed with high-quality materials, ensuring durability and longevity.

One notable design feature of the ECI 6 is its transparent acrylic front panel, which showcases a display with large blue characters indicating the selected input source. This display can also provide information on any protection triggers in case of an abnormal situation. The center of the panel features the company logo, which doubles as a volume level indicator, accompanied by a golden power button below it. On the right side of the panel, there are four buttons arranged in a cross shape. One pair of buttons is used for input selection, while the other pair (vertical) controls the volume adjustment.

Efficient cooling is achieved through the amplifier’s well-designed internal layout and ventilation system. This ensures that the components remain at optimal operating temperatures, preventing overheating and potential damage to the unit. Additionally, the thoughtful construction helps minimize interference, allowing for clean and uninterrupted audio performance.

When it comes to connectors and switches, the Electrocompaniet ECI 6 does not disappoint. The amplifier features high-quality connectors that provide secure and reliable connections for both balanced (XLR) and unbalanced (RCA) inputs. The switches are sturdy and responsive, giving users confidence in their functionality.

Overall, the design and construction of the Electrocompaniet ECI 6 amplifier showcase attention to detail and a commitment to delivering a premium audio experience. From its stylish appearance to its efficient cooling system and reliable connectors, this amplifier is built to impress both visually and functionally.


The Electrocompaniet ECI 6 amplifier offers a wide range of functionality, making it a versatile choice for audio enthusiasts. It provides multiple connectivity options, allowing you to connect various audio sources such as CD players, computers, and smartphones. With both balanced (XLR) and unbalanced (RCA) stereo inputs, you have the flexibility to choose the most suitable connection for your setup.

In terms of controls, the ECI 6 amplifier offers balance controls, allowing you to adjust the balance between the left and right channels. This feature is particularly useful when fine-tuning the soundstage and achieving optimal stereo imaging. Additionally, tone adjustments are available, enabling you to tailor the sound according to your preferences.

The amplifier also includes other operating modes that enhance its functionality. The presence of a Direct mode allows for a pure and unadulterated audio signal path, bypassing any unnecessary circuitry for a more transparent sound reproduction. This mode is ideal for audiophiles who prefer a purist approach to their music listening experience.

Overall, the Electrocompaniet ECI 6 amplifier provides a comprehensive set of functionality options that cater to different audio sources and personal preferences. Its versatility ensures compatibility with various devices while offering control features that allow users to customize their listening experience.

Sound Characteristics

The Electrocompaniet ECI 6 amplifier delivers exceptional sound characteristics that will captivate any audiophile. The attention to detail and precision in its design result in a truly immersive listening experience.

One of the standout features of the ECI 6 is its ability to provide incredible instrument separation. Each instrument is given its own space within the soundstage, allowing for a clear and distinct representation of the music. This level of separation enhances the overall clarity and realism of the audio.

The bass response of the ECI 6 is deep, powerful, and incredibly controlled. It effortlessly reproduces low frequencies with accuracy and precision, adding depth and impact to every track. Whether you’re listening to electronic dance music or classical compositions with powerful orchestral sections, the amplifier’s bass performance will leave you impressed.

In terms of treble clarity, the ECI 6 shines brightly. The high frequencies are crisp and well-defined, without any harshness or distortion. This allows for a delicate rendering of details in vocals, cymbals, and other high-frequency elements, ensuring a lifelike presentation that truly engages the listener.

Regardless of the genre you prefer, the Electrocompaniet ECI 6 excels at bringing out the best in your music collection. From intimate acoustic performances to complex symphonies, this amplifier handles every genre with finesse and accuracy. It effortlessly adapts to different musical styles, preserving their unique characteristics while adding a touch of refinement that enhances your listening pleasure.

Whether you are an avid jazz enthusiast or a rock aficionado, you can expect an engaging soundstage with precise imaging from the ECI 6. It recreates a three-dimensional sonic environment that places you right in the middle of the performance. The amplifier’s ability to accurately reproduce spatial cues ensures an immersive experience that brings your favorite tracks to life.

In conclusion, the Electrocompaniet ECI 6 offers impeccable sound characteristics that will satisfy even the most discerning audiophiles. Its ability to deliver exceptional instrument separation, powerful bass response, clear treble, and adaptability to different music genres make it a standout choice for anyone looking to elevate their listening experience.

Sound Performance

The Electrocompaniet ECI 6 amplifier delivers an exceptional sound performance that is sure to captivate even the most discerning audiophiles. With its advanced circuitry and precise engineering, this amplifier faithfully reproduces audio signals with remarkable clarity, dynamics, and tonal balance.

When it comes to clarity, the ECI 6 excels in revealing intricate details within the music. Instruments and vocals are rendered with stunning precision, allowing every nuance and subtlety to shine through. The amplifier’s ability to unravel complex musical passages ensures that each element is presented with utmost clarity, creating a highly immersive listening experience.

Furthermore, the dynamics of the ECI 6 are truly impressive. It effortlessly handles both delicate passages and explosive crescendos, conveying a sense of energy and excitement that brings music to life. The amplifier’s ability to accurately reproduce the dynamic range of recordings adds depth and realism to the soundstage, making you feel as if you are right in the midst of a live performance.

In terms of tonal balance, the ECI 6 strikes a perfect equilibrium across different frequency ranges. The lows are deep and well-defined, providing a solid foundation for the music. The midrange is rich and lush, ensuring vocals and instruments have a natural presence and warmth. The highs are detailed and extended without any harshness or sibilance, resulting in a smooth and refined treble response.

Whether you’re listening to classical symphonies or rocking out to energetic rock tracks, the Electrocompaniet ECI 6 delivers an engaging sound performance that will keep you hooked for hours on end. Its ability to accurately reproduce audio signals with exceptional clarity, dynamics, and tonal balance ensures that every genre of music is presented in its truest form.

With the Electrocompaniet ECI 6 amplifier as your audio companion, you can expect nothing less than an extraordinary auditory experience that will transport you closer to your favorite music than ever before.


The Electrocompaniet ECI 6 amplifier offers several significant advantages that set it apart from its competitors in the market. Firstly, its powerful output of 2×125 Watts ensures a robust and dynamic audio performance, capable of handling a wide range of speakers available in the market. This power output is particularly impressive considering its compact size and sleek design.

Another advantage of the ECI 6 is its balanced topology, which contributes to superior sound quality and reduced noise interference. The use of a discrete input stage in Class A further enhances the amplifier’s performance, ensuring accurate and detailed audio reproduction.

In terms of connectivity options, the ECI 6 provides both balanced (XLR) and unbalanced (RCA) inputs, allowing users to connect various analog sources to the amplifier. This versatility ensures compatibility with a wide range of audio equipment.

Furthermore, the ECI 6 features a user-friendly interface with a clear display and intuitive controls. The front panel display indicates the selected input source, while the centrally located volume indicator adds a touch of sophistication. The inclusion of a direct mode also allows for a purer audio signal path when desired.

When comparing the ECI 6 to other models in its price range, it stands out for its exceptional build quality and attention to detail. The amplifier is meticulously constructed in Norway, showcasing Electrocompaniet’s commitment to producing high-end audio equipment.

Overall, the Electrocompaniet ECI 6 amplifier offers a combination of power, precision, and versatility that makes it a standout choice among its competitors. Its superior sound quality, balanced topology, and user-friendly interface make it an excellent investment for audiophiles seeking an immersive listening experience.

Value for Money

The Electrocompaniet ECI 6 amplifier offers exceptional value for money with its outstanding performance, comprehensive features, and reasonable price. When considering the overall package that this amplifier provides, it becomes evident that it offers a high level of value in the market.

In terms of performance, the ECI 6 delivers impressive audio quality with its powerful 2×125 Watt output. The use of a fully balanced topology and a discrete input stage ensures accurate and detailed sound reproduction. With a wide frequency range of 1 Hz to 150,000 Hz, this amplifier is capable of handling a broad range of audio systems. The low signal-to-noise ratio of 135 dB and low distortion rate of 0.003% further enhance the audio experience, ensuring clean and transparent sound reproduction.

The ECI 6 also boasts a range of useful features that add to its value proposition. It offers four analog inputs, including one XLR input for balanced connections, allowing for versatile connectivity options. The presence of both balanced and unbalanced outputs provides flexibility for integration into various stereo systems. Additionally, the inclusion of a Direct mode allows for a pure audio signal path, bypassing unnecessary circuitry for improved audio fidelity.

Considering its technical specifications, features, and performance capabilities, the Electrocompaniet ECI 6 amplifier offers excellent value for money. It competes favorably with other amplifiers in its class while maintaining a relatively affordable price point. The build quality and reliability associated with Electrocompaniet products further contribute to its value proposition, ensuring long-term satisfaction for users.

In conclusion, the Electrocompaniet ECI 6 amplifier offers exceptional value for money with its impressive performance, comprehensive features, and reasonable price. It delivers high-quality sound reproduction, versatile connectivity options, and reliable construction. Whether you are an audiophile seeking top-notch audio performance or a music enthusiast looking for an amplifier that offers excellent value in its price range, the ECI 6 is a compelling choice.


In conclusion, the Electrocompaniet ECI 6 amplifier is a remarkable piece of audio equipment that delivers exceptional performance and versatility. With its balanced integrated design and powerful output, this amplifier is capable of driving a wide range of speakers with ease.

The ECI 6 boasts a sleek and modern design, featuring a transparent acrylic front panel with a large blue display that indicates the selected input source. The build quality is top-notch, as expected from Electrocompaniet, with the amplifier being manufactured in Norway.

In terms of functionality, the ECI 6 offers multiple analog inputs, including a balanced XLR input and three unbalanced RCA stereo inputs. It also provides both balanced and unbalanced outputs, allowing for seamless integration into various stereo systems. Additionally, the presence of a Direct mode enhances the audio purity by bypassing unnecessary circuitry.

When it comes to sound characteristics, the ECI 6 excels in delivering a clean and detailed soundstage. The balanced topology and high-quality components contribute to an impressive signal-to-noise ratio of 135dB and an incredibly low distortion level of 0.003%. This translates into an immersive listening experience with accurate instrument separation and precise imaging.

In terms of sound performance, the ECI 6 truly shines. It effortlessly reproduces both delicate nuances and powerful dynamics, ensuring a captivating musical experience across various genres. The amplifier’s ability to handle a wide frequency range from 1Hz to 150kHz further adds to its versatility.

One of the notable advantages of the ECI 6 is its reliability and robustness. The upgraded power section and advanced preamplifier module result in an extremely reliable and dynamic amplifier that can meet the demands of different speaker systems in the market.

While the Electrocompaniet ECI 6 comes at a higher price point, it offers excellent value for money considering its exceptional audio performance, build quality, and reliability. If you are an audiophile seeking a high-end amplifier that can elevate your listening experience to new heights, the ECI 6 is definitely worth considering.

In conclusion, the Electrocompaniet ECI 6 amplifier is a powerful and versatile audio component that delivers outstanding sound performance. With its balanced design, advanced features, and impeccable build quality, it is an investment that will satisfy even the most discerning audiophiles. Whether you are enjoying your favorite music or indulging in a movie, the ECI 6 will undoubtedly impress with its clarity, precision, and immersive soundstage.

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