Bittner 4×400 Dual: Unleashing Audiophile Bliss


In today’s world of music and entertainment, high-quality sound amplification is essential for an immersive and captivating audio experience. Whether you are a music enthusiast, a professional DJ, or simply someone who appreciates the power of crystal-clear sound, having a reliable and efficient amplifier is crucial. In this review, we will be exploring the Bittner 4×400 Dual amplifier, a powerful and versatile hifi sound amplifier that promises to deliver exceptional audio performance.

The Bittner 4×400 Dual amplifier is part of the renowned 4X series by Bittner Audio, known for their functional capabilities and reliability. This particular model stands out with its dual-channel amplification feature, allowing for enhanced power output and flexibility in connecting multiple audio devices. Additionally, the 4×400 Dual amplifier is designed to handle a 2-ohm load, making it suitable for a wide range of speaker setups.

With its sleek and sturdy construction, the Bittner 4×400 Dual exudes a sense of durability and professionalism. The amplifier features two independent power supply units, each dedicated to powering two separate channels. This design ensures optimal performance and minimizes any potential interference between channels.

Furthermore, the rear panel of the amplifier houses a device address switch and a data port for network integration and computer control. This feature allows for seamless connectivity and convenient management of the amplifier’s settings via a computer interface. Additionally, the 4×400 Dual comes equipped with durable digital potentiometers, an integrated gate on each channel, sequential remote power-on functionality, and detachable connectors – all contributing to its intelligent power management system.

In conclusion, the Bittner 4×400 Dual amplifier combines power and safety by integrating two independent amplifiers into one unit without compromising on quality. Its advanced features and robust construction make it an ideal choice for professionals in need of reliable amplification solutions. In the following sections of this review, we will delve deeper into the technical specifications, design, functionality, sound characteristics, and overall performance of this exceptional amplifier.

Technical Specifications

The Bittner 4×400 Dual amplifier boasts impressive technical specifications that contribute to its exceptional audio performance. This amplifier operates in Class AB, delivering a powerful and efficient performance.

With a signal-to-noise ratio (SNR) of 103 dB, the Bittner 4×400 Dual ensures a clean and clear audio signal, minimizing any unwanted background noise. Additionally, the total harmonic distortion (THD) is kept to a minimum, guaranteeing accurate and faithful reproduction of the audio source.

The amplifier features four channels of amplification, allowing for versatile speaker configurations. It supports the connection of two pairs of speakers simultaneously, providing flexibility in setting up your audio system.

In terms of inputs and outputs, the Bittner 4×400 Dual offers a range of options. It includes standard RCA inputs for connecting various audio sources such as CD players, turntables, or media players. The amplifier also supports balanced XLR inputs for professional-grade audio equipment.

The frequency response of the Bittner 4×400 Dual ranges from 20 Hz to 20 kHz, ensuring a wide range of audio frequencies are accurately reproduced. This amplifier can drive speakers with an impedance of either 4 ohms or 8 ohms, accommodating different speaker setups.

Overall, the Bittner 4×400 Dual’s technical specifications demonstrate its capability to deliver high-quality sound reproduction across a wide frequency range while providing versatility in speaker configuration options.

Design and Construction

The Bittner 4×400 Dual amplifier boasts a sleek and professional design that is sure to impress any audio enthusiast. Its black color adds a touch of elegance, making it a visually appealing addition to any setup. The construction of this amplifier is top-notch, with high-quality materials used throughout its build.

One notable design feature of the Bittner 4×400 Dual is its efficient cooling system. With two independent power supply blocks, this amplifier ensures optimal heat dissipation, preventing overheating during prolonged use. This not only enhances the longevity of the amplifier but also contributes to its overall performance and reliability.

Another aspect worth mentioning is the attention given to reducing interference. The Bittner 4×400 Dual incorporates shielding and isolation techniques to minimize any external noise or distortion that could affect the audio quality. This ensures a clean and pristine sound reproduction, allowing you to fully immerse yourself in your favorite music.

When it comes to connectors and switches, the Bittner 4×400 Dual does not disappoint. The connectors are sturdy and well-built, providing secure and reliable connections for your audio devices. Additionally, the switches are smooth and responsive, allowing for easy adjustments and customization according to your preferences.

Overall, the design and construction of the Bittner 4×400 Dual amplifier showcase attention to detail and a commitment to delivering a high-quality product. Its sleek appearance, efficient cooling system, reduced interference, and durable connectors make it a reliable choice for audiophiles seeking both style and functionality in their audio setup.


The Bittner 4×400 Dual amplifier offers a wide range of functionality to cater to various audio sources and preferences. With its versatile connectivity options, you can easily connect your CD players, computers, smartphones, and other devices to enjoy high-quality audio playback.

This amplifier provides multiple input options, allowing you to connect different audio sources simultaneously. Whether you prefer a wired connection or wireless streaming, the Bittner 4×400 Dual has got you covered. It supports various input types such as RCA, XLR, and optical inputs, ensuring compatibility with a wide range of devices.

In terms of controls, this amplifier offers balance controls that enable you to adjust the sound distribution between left and right channels for a more immersive listening experience. Additionally, it provides tone adjustments that allow you to fine-tune the bass and treble levels according to your personal preferences.

One notable feature of the Bittner 4×400 Dual is its ability to operate in different modes. Whether you want to use it as a stereo amplifier or in bridged mode for increased power output, this amplifier offers flexibility to suit your specific needs. It also includes protection mechanisms such as overheat and short circuit protection, ensuring the safety of both the amplifier and your connected devices.

Overall, the functionality of the Bittner 4×400 Dual amplifier is impressive. It provides a wide range of connectivity options for various audio sources and offers convenient controls for customization. Whether you are a music enthusiast or a professional audio engineer, this amplifier’s functionality will meet your requirements and enhance your listening experience.

Sound Characteristics

The Bittner 4×400 Dual amplifier delivers exceptional sound characteristics that will impress even the most discerning audiophiles. With its powerful performance and precise audio reproduction, this amplifier truly shines in terms of sound quality.

One notable aspect of the sound produced by the 4×400 Dual is its incredible detail. The amplifier has a remarkable ability to bring out intricate nuances in the music, allowing listeners to hear every subtle note and texture. Whether it’s the delicate plucking of guitar strings or the soft whisper of a cymbal, the amplifier ensures that no detail goes unnoticed.

Instrument separation is another area where the 4×400 Dual excels. The amplifier effectively separates each instrument within the soundstage, creating a three-dimensional experience that enhances the overall listening pleasure. This level of separation allows listeners to distinguish between different instruments with utmost clarity, resulting in an immersive and engaging musical experience.

In terms of bass response, the 4×400 Dual delivers a solid and impactful performance. The amplifier produces deep and tight bass that adds depth and richness to the music without overpowering other frequencies. Whether it’s a thumping bassline in a hip-hop track or the rumbling low-end in a classical piece, the amplifier handles bass with precision and control.

The treble clarity of the 4×400 Dual is equally impressive. The amplifier ensures that high-frequency details are reproduced with utmost accuracy and transparency. The treble is crisp, clear, and well-defined, adding sparkle and airiness to the music without any harshness or sibilance.

When it comes to different music genres, the 4×400 Dual excels across the board. Whether you’re listening to classical symphonies, rock anthems, jazz improvisations, or electronic beats, the amplifier effortlessly adapts to each genre’s unique sonic characteristics. It faithfully reproduces the essence of each genre, capturing the dynamics, energy, and emotions that make the music come alive.

Overall, the sound characteristics of the Bittner 4×400 Dual amplifier are truly exceptional. With its attention to detail, instrument separation, powerful bass response, and crystal-clear treble, this amplifier elevates the listening experience to new heights across various music genres.

Sound Performance

The Bittner 4×400 Dual amplifier delivers an exceptional sound performance that will transport you into a captivating auditory experience. With its ability to faithfully reproduce audio signals, this amplifier ensures a level of clarity, dynamics, and tonal balance that is truly remarkable.

When it comes to clarity, the 4×400 Dual shines by providing a detailed and precise sound reproduction. Every instrument and vocal can be heard with incredible definition, allowing you to fully immerse yourself in the music. The amplifier’s ability to maintain clarity even at high volumes ensures that no nuances or subtleties are lost, resulting in a truly immersive listening experience.

The dynamics of the 4×400 Dual are equally impressive. It effortlessly handles both delicate passages and explosive crescendos with finesse and power. This amplifier has the capability to capture the full range of dynamics in a recording, allowing you to feel the energy and emotion of the music as if you were experiencing it live.

One of the standout features of the 4×400 Dual is its exceptional tonal balance across different frequency ranges. The lows are deep and impactful without overpowering the rest of the sound spectrum, while the mids are rich and well-defined, adding warmth and body to vocals and instruments. The highs are crisp and clear, providing sparkle and detail without any harshness. This balanced presentation ensures that every element of the music is reproduced with accuracy and authenticity.

Whether you’re listening to classical symphonies, rock anthems, or electronic beats, the Bittner 4×400 Dual amplifier excels in delivering a sound performance that is captivating, immersive, and true to the original recording. 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.

In conclusion, if you’re searching for an amplifier that can truly elevate your listening experience, look no further than the Bittner 4×400 Dual. With its exceptional sound performance, this amplifier will transport you into a world of audio excellence, where every note and every detail is brought to life with precision and finesse.


The Bittner 4×400 Dual amplifier offers several key advantages that set it apart from its competitors in the market. Firstly, its dual independent power supply units ensure enhanced reliability and stability, allowing for seamless operation even under demanding conditions. This feature is particularly beneficial for professional audio applications where uninterrupted performance is essential.

Furthermore, the inclusion of two separate power channels in the amplifier provides added flexibility and versatility. Users have the option to connect two pairs of speakers simultaneously, enabling them to create a more immersive and dynamic audio experience in their setup.

In terms of build quality, the Bittner 4×400 Dual boasts a solid construction that exudes durability and longevity. The amplifier is designed to withstand rigorous use, making it an ideal choice for both professional audio engineers and enthusiasts alike.

When compared to other models in its price range, the Bittner 4×400 Dual stands out with its exceptional sound quality and performance. The amplifier delivers a clean and powerful sound output, ensuring accurate reproduction of audio across various frequencies. With its impressive signal-to-noise ratio of 103 dB, listeners can enjoy a high-fidelity listening experience without any unwanted background noise or distortion.

Additionally, the Bittner 4×400 Dual offers convenient features such as computer control capabilities and removable connectors, further enhancing its usability and ease of integration into existing audio systems.

Overall, the Bittner 4×400 Dual amplifier excels in terms of reliability, versatility, sound quality, and user-friendly features. Its competitive edge in the market makes it a top choice for those seeking a high-performance amplifier that delivers exceptional value for money.

Value for Money

When considering the value for money of the Bittner 4×400 Dual amplifier, it is important to evaluate its performance, features, and price. In this regard, the amplifier offers a compelling proposition.

Firstly, in terms of performance, the Bittner 4×400 Dual delivers exceptional audio quality with its powerful amplification capabilities. With a maximum power output of 310 watts per channel at 4 ohms and 230 watts per channel at 8 ohms, this amplifier ensures a robust and immersive sound experience. The high signal-to-noise ratio of 103 dB further enhances the clarity and fidelity of the audio reproduction.

Secondly, the Bittner 4×400 Dual boasts a range of features that enhance its functionality. The inclusion of two independent power supply units ensures stable and reliable performance, minimizing any potential disruptions or distortions in the audio signal. Additionally, the ability to connect two pairs of speakers allows for greater flexibility in setting up a multi-room or surround sound system.

Lastly, when considering the price point of the Bittner 4×400 Dual, it offers excellent value for money. While it may not be the most affordable amplifier on the market, its combination of performance and features justifies its price tag. The inclusion of intelligent power management features such as durable digital potentiometers and integrated channel gates further enhances its value proposition.

Overall, the Bittner 4×400 Dual provides a compelling value for money proposition. Its exceptional performance, comprehensive features, and competitive price make it an attractive choice for both audiophiles and professionals seeking a high-quality amplifier for their audio setups.


In conclusion, the Bittner 4×400 Dual amplifier is an impressive piece of audio equipment that delivers exceptional performance and functionality. With its dual power supply and independent channels, it combines power and safety in one unit. The amplifier’s sleek design and solid construction ensure durability and reliability.

The sound characteristics of the Bittner 4×400 Dual are outstanding, offering a wide frequency range from 20Hz to 20kHz. The signal-to-noise ratio of 103dB ensures clear and distortion-free sound reproduction. While it lacks an equalizer and support for RDS FM radio, it makes up for it with its powerful amplification capabilities.

When it comes to sound performance, the Bittner 4×400 Dual truly shines. It delivers a clean, detailed, and immersive audio experience, whether you’re listening to music or watching movies. The amplifier’s ability to handle a variety of speaker setups, including the option to connect two pairs of speakers, adds versatility to its functionality.

One of the notable advantages of the Bittner 4×400 Dual is its intelligent power management system. The inclusion of digital potentiometers, integrated channel gates, remote power sequencing, computer control, and removable connectors showcases its advanced features.

In terms of value for money, the Bittner 4×400 Dual is priced competitively considering its performance and features. While there may be other amplifiers on the market with similar specifications, the Bittner brand’s reputation for quality and reliability adds significant value to this product.

For potential buyers looking for a powerful and reliable amplifier that delivers exceptional sound quality, the Bittner 4×400 Dual is definitely worth considering. Whether you’re an audiophile or a home theater enthusiast, this amplifier will elevate your listening experience to new heights.

Overall, the Bittner 4×400 Dual amplifier impresses with its robust design, versatile functionality, and outstanding sound performance. It is a solid investment for those seeking high-quality audio reproduction and reliable amplification.

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