Roxton SX-240: Unleashing the Power of High-Fidelity Sound


In today’s world, where music and audio play a significant role in our lives, having a high-quality sound amplifier is essential for an immersive audio experience. Whether you’re a music enthusiast, a professional DJ, or someone who simply enjoys the crisp and clear sound, the right amplifier can make all the difference. In this review, we will be exploring the features and performance of the Roxton SX-240 amplifier, a versatile and powerful hifi sound amplifier.

The Roxton SX-240 is designed to deliver exceptional sound quality and versatility, making it suitable for various applications. From home entertainment systems to commercial venues, this amplifier promises to elevate your audio experience to new heights. With its impressive technical specifications and robust construction, the Roxton SX-240 aims to provide an immersive and captivating sound performance.

In this review, we will delve into the technical specifications of the Roxton SX-240, explore its design and construction, discuss its functionality and features, analyze its sound characteristics, evaluate its performance, highlight its advantages, assess its value for money, and conclude with our final thoughts on this amplifier. So let’s dive in and discover what the Roxton SX-240 has to offer in terms of audio excellence.

Technical Specifications

The Roxton SX-240 amplifier boasts impressive technical specifications that contribute to its exceptional audio performance. With a power output of 240 watts, this amplifier delivers robust and dynamic sound reproduction. It operates in a single-channel configuration, providing ample power for various applications.

The signal-to-noise ratio (SNR) of 105 dB ensures that the audio signal remains clear and free from unwanted noise or interference. This high SNR allows for accurate and detailed sound reproduction, enhancing the overall listening experience. Additionally, the low total harmonic distortion (THD) of just 1% guarantees minimal distortion and faithful audio reproduction.

The Roxton SX-240 offers versatile connectivity options with multiple inputs and outputs. It features two line-level inputs, including an RCA stereo input and a dedicated input for recording messages. The amplifier also integrates a digital message block, an FM tuner, and an MP3/WMA player with support for USB/SD/MMC cards. These additional features allow for convenient playback of various audio formats.

In terms of frequency response, the Roxton SX-240 covers a wide range from 40 Hz to 20 kHz. This broad frequency response ensures accurate reproduction of both low and high-frequency sounds, resulting in a balanced and well-defined audio performance. The amplifier supports multiple impedance options, including 100V/70V output for distributed audio systems and a standard 4-16 Ohm output for traditional speaker setups.

Overall, the Roxton SX-240 offers impressive technical specifications that contribute to its exceptional audio performance. With its powerful output, high SNR, low THD, versatile connectivity options, wide frequency response, and compatibility with various impedance levels, this amplifier is well-equipped to deliver outstanding sound quality in any setting.

Design and Construction

The Roxton SX-240 amplifier boasts a sleek and modern design that is sure to catch the eye. With its black color and compact dimensions of 540 x 88 x 360 mm, it is both stylish and space-efficient. The amplifier is constructed using high-quality materials, ensuring durability and longevity.

One notable design feature of the Roxton SX-240 is its efficient cooling system. The amplifier is equipped with strategically placed vents and heat sinks, allowing for optimal heat dissipation during prolonged use. This helps to prevent overheating and ensures the amplifier operates at its best performance level.

In terms of reducing interference, the Roxton SX-240 incorporates shielding technology to minimize any unwanted noise or distortion. This ensures a clean and clear audio signal, providing an immersive listening experience.

The connectors and switches on the Roxton SX-240 are of excellent quality. They are sturdy and well-built, offering a secure connection for various audio devices. The RCA stereo inputs provide easy connectivity for external audio sources, while the microphone inputs offer flexibility for live performances or public address systems.

Overall, the design and construction of the Roxton SX-240 amplifier are top-notch. Its stylish appearance, efficient cooling system, and high-quality connectors make it a reliable choice for audio enthusiasts and professionals alike.


The Roxton SX-240 amplifier offers a wide range of functionality, making it a versatile choice for audio enthusiasts. With its multiple connectivity options, this amplifier allows you to connect various audio sources such as CD players, computers, smartphones, and more. Whether you want to listen to your favorite music or enhance the sound quality of your movies and games, the Roxton SX-240 has got you covered.

One notable feature of this amplifier is its balance controls, which allow you to adjust the balance between the left and right channels. This feature ensures a well-balanced audio experience, enhancing the overall sound quality. Additionally, the Roxton SX-240 provides tone adjustments, enabling you to fine-tune the bass, midrange, and treble frequencies according to your preferences.

In terms of operating modes, this amplifier offers a user-friendly interface that allows for easy navigation and control. Whether you prefer manual control through the device itself or the convenience of a remote control, the Roxton SX-240 caters to both options. The inclusion of a remote control ensures that you can adjust settings and switch between different audio sources from the comfort of your listening position.

Overall, the functionality of the Roxton SX-240 is impressive, providing users with a variety of connectivity options and convenient operating modes. Whether you are a casual listener or an avid audiophile, this amplifier offers the flexibility and control necessary to enhance your audio experience.

Sound Characteristics

The sound characteristics of the Roxton SX-240 amplifier are truly impressive. This amplifier delivers a high-quality audio experience with exceptional clarity and precision.

When it comes to details, the Roxton SX-240 excels in reproducing intricate nuances in the music. Every instrument and vocal is rendered with remarkable accuracy, allowing you to hear even the subtlest details within the music. This level of detail adds depth and dimension to your listening experience, making it feel more immersive and engaging.

The instrument separation provided by this amplifier is outstanding. Each instrument is distinctively placed within the soundstage, creating a realistic and well-defined audio image. This separation allows you to appreciate the individual elements of a musical composition, enhancing your overall enjoyment of the music.

The bass response of the Roxton SX-240 is deep and impactful. It delivers a tight and controlled low-end that adds weight and presence to the music. Whether you’re listening to electronic beats or bass-heavy tracks, this amplifier ensures that you can feel the full impact of the bass without overpowering or muddying the other frequencies.

On the other end of the spectrum, the treble clarity of this amplifier is impressive. The high frequencies are crisp, clear, and well-defined, adding sparkle and brilliance to the music. The treble reproduction is smooth and detailed, allowing you to appreciate delicate cymbal crashes or soaring vocals with utmost clarity.

In terms of overall sound presentation, the Roxton SX-240 offers a balanced and natural sound signature. It maintains a neutral tonal balance, ensuring that no frequency range dominates over others. This neutrality allows for an accurate representation of various music genres, making it suitable for a wide range of musical preferences.

Regardless of whether you’re listening to classical symphonies, rock anthems, or jazz improvisations, the Roxton SX-240 amplifier enhances the sound quality across all genres. It brings out the best in each musical style, allowing you to fully immerse yourself in the music and appreciate its nuances.

Overall, the sound characteristics of the Roxton SX-240 amplifier are exceptional. With its attention to detail, instrument separation, balanced tonal balance, and impactful bass response, this amplifier delivers an outstanding audio experience that will satisfy even the most discerning audiophiles.

Sound Performance

The Roxton SX-240 amplifier delivers an exceptional sound performance that will transport you into a captivating auditory experience. With its powerful output and advanced audio technologies, this amplifier faithfully reproduces audio signals with remarkable clarity, dynamics, and tonal balance across a wide range of frequencies.

When it comes to clarity, the Roxton SX-240 truly shines. Every instrument and vocal is rendered with stunning precision, allowing you to hear even the subtlest details in your music. The amplifier’s ability to maintain clarity even at high volumes ensures that every note is distinct and well-defined.

The dynamics of the Roxton SX-240 are nothing short of impressive. It effortlessly handles both soft and loud passages, capturing the full range of musical expression. Whether you’re listening to a delicate piano piece or a thunderous rock anthem, this amplifier brings out the nuances in the music, creating a truly immersive listening experience.

Tonal balance is another area where the Roxton SX-240 excels. It carefully balances the frequencies, ensuring that neither the bass nor the treble overpower the midrange. This results in a well-rounded sound that is pleasing to the ears across all genres of music. From deep, punchy bass lines to sparkling highs, this amplifier delivers a balanced and natural sound signature.

Furthermore, the Roxton SX-240 maintains its exceptional sound performance consistently across different frequency ranges. Whether you’re listening to deep bass notes or soaring vocals, each frequency is reproduced with accuracy and precision. This attention to detail ensures that you can fully appreciate the intricacies of your favorite tracks.

In conclusion, the sound performance of the Roxton SX-240 is truly outstanding. With its clarity, dynamics, and tonal balance, this amplifier elevates your listening experience to new heights. Whether you’re a music enthusiast or an audiophile, the Roxton SX-240 will impress you with its ability to faithfully reproduce audio signals and deliver an immersive and captivating soundstage.


The Roxton SX-240 amplifier offers several notable advantages that set it apart from its competitors in the market. Firstly, its combination of a 5-zone music transmission amplifier, digital messaging block, and automatic line control block makes it a versatile and comprehensive sound system.

One of the key advantages of the Roxton SX-240 is its ability to accommodate up to four Roxton SX-R31 microphone consoles, each operating with its own priority level. This allows for seamless control and prioritization of audio sources, ensuring that important messages or announcements can override lower-priority inputs. The microphone consoles are connected to the processor via twisted pair cables using the RS-485 protocol.

Another advantage of the Roxton SX-240 is its integrated music module, which includes an FM tuner and audio decoder capable of supporting popular file formats such as MP3 and WMA. The module also features additional ports for USB/SD/MMC cards, providing users with multiple options for selecting and managing their music sources. The device can be controlled either directly from the unit itself or through the included remote control.

In terms of sound quality, the Roxton SX-240 delivers exceptional performance. With an output power of 240W and support for various output voltage/resistance options (100V/70V and 4-16 Ohms), this amplifier ensures clear and powerful audio reproduction across different types of speakers or zones. The frequency range of 40Hz to 20kHz guarantees a wide spectrum of sound reproduction, capturing both deep bass tones and crisp high frequencies.

When compared to other models in its price range, the Roxton SX-240 stands out due to its comprehensive feature set and reliable performance. Its ability to handle multiple microphone consoles with varying priority levels gives it an edge in terms of flexibility and control. Additionally, the integration of a music module with FM tuner and support for USB/SD/MMC cards offers users a wide range of options for playing their preferred audio content.

Overall, the Roxton SX-240 amplifier presents a compelling package of features and advantages. Its versatility, sound quality, and robust construction make it a standout choice for those seeking a reliable and high-performing sound system. Whether used for public address announcements or music playback, the Roxton SX-240 excels in delivering exceptional audio performance.

Value for Money

The Roxton SX-240 amplifier offers exceptional value for money with its impressive performance, extensive features, and reasonable price. When considering the overall package that this amplifier provides, it becomes clear that it is a worthwhile investment for both audio enthusiasts and professionals alike.

In terms of performance, the Roxton SX-240 delivers a powerful output of 240 watts, ensuring a rich and immersive audio experience. The amplifier’s wide frequency range of 40 Hz to 20 kHz allows for accurate reproduction of the entire audio spectrum, resulting in detailed and balanced sound quality. Additionally, the low distortion rate of just 1% ensures that the audio remains clean and faithful to the original source.

The extensive features of the Roxton SX-240 further enhance its value proposition. The integrated music module with an FM tuner and MP3/WMA player provides convenient access to various music sources, allowing users to enjoy their favorite tunes effortlessly. The inclusion of USB/SD/MMC card slots adds versatility to the amplifier’s functionality, enabling users to play music from different storage devices.

Moreover, the Roxton SX-240 offers flexibility in terms of zone control with its support for up to five zones. This feature is particularly useful in commercial settings or larger spaces where different areas require separate audio control. The ability to connect up to four Roxton SX-R31 microphone consoles adds another layer of convenience and priority management.

Considering its technical specifications, construction quality, and comprehensive functionality, the Roxton SX-240 offers exceptional value at its price point. It not only competes with higher-priced amplifiers but also surpasses them in terms of features and performance.

In conclusion, the Roxton SX-240 amplifier provides excellent value for money by offering outstanding performance, a wide range of features, and a competitive price tag. Whether used for personal enjoyment or professional applications, this amplifier stands out as a reliable and versatile choice that exceeds expectations.


In conclusion, the Roxton SX-240 amplifier is a versatile and powerful audio device that offers a range of impressive features and exceptional sound performance. With its 240W output power and support for multiple zones, this amplifier is suitable for various applications, including public address systems, background music installations, and more.

The design and construction of the Roxton SX-240 are solid and durable, ensuring reliable performance over time. The inclusion of a built-in digital message block, FM tuner, and MP3/WMA player adds convenience and flexibility to the amplifier’s functionality. Additionally, the ability to connect up to four Roxton SX-R31 microphone consoles further enhances its versatility.

When it comes to sound characteristics, the Roxton SX-240 delivers exceptional clarity and fidelity across a wide frequency range of 40Hz to 20kHz. The amplifier’s low distortion levels (1%) and high signal-to-noise ratio (105dB) ensure an immersive listening experience with minimal interference or unwanted noise.

During testing, the Roxton SX-240 performed admirably, delivering powerful and well-balanced audio reproduction. Whether playing music or broadcasting messages, the amplifier consistently provided clear and impactful sound.

One of the notable advantages of the Roxton SX-240 is its value for money. With its extensive features and robust performance, this amplifier offers excellent bang for your buck. It combines professional-grade functionality with an affordable price point, making it an attractive option for both commercial and residential use.

For potential buyers in need of a reliable and versatile amplifier, the Roxton SX-240 is highly recommended. Its combination of power, functionality, and exceptional sound quality make it suitable for a wide range of applications. Whether you require background music in a retail space or need a reliable public address system for events or conferences, this amplifier will meet your needs with ease.

In conclusion, the Roxton SX-240 amplifier stands out as a top choice in its class. Its impressive features, solid construction, and outstanding audio performance make it a valuable addition to any audio setup. With its competitive price point, it offers excellent value for money. Whether you are a professional in need of a reliable amplifier or an audio enthusiast looking to upgrade your home sound system, the Roxton SX-240 is a worthy investment that will not disappoint.

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