Triode TRX-M845: Elevating Audio Excellence with HiFi Amplification


In the world of audio enthusiasts, finding the perfect sound amplifier is a never-ending quest. The right amplifier can make all the difference in delivering a truly immersive and captivating listening experience. Today, we delve into the realm of high-fidelity sound amplification with the Triode TRX-M845 amplifier.

Triode, a renowned Japanese company known for their exceptional craftsmanship in tube technology, has once again raised the bar with their TRX-M845 amplifier. This monoblock power amplifier not only boasts an exquisite design and impeccable style, but also delivers unparalleled sound quality that has captivated both domestic and international markets.

High-quality sound amplification is crucial for audiophiles who seek to recreate a lifelike audio experience in their homes or professional studios. The Triode TRX-M845 is a class A power amplifier that offers the unique ability to operate in triode mode, providing audiophiles with versatility and flexibility in their setup. Equipped with three 845 tubes (with the option to use 211 tubes) as well as one 6SN7 and one 12AU7 tube, this amplifier ensures optimal performance and sonic accuracy.

But what truly sets the TRX-M845 apart from its competitors is its attention to detail in both design and construction. The sleek silver finish exudes elegance and sophistication, making it a visually stunning addition to any audio setup. Its robust build quality ensures durability and longevity, ensuring that this amplifier will continue to deliver exceptional performance for years to come.

In the next sections of this review, we will explore the technical specifications, design and construction, functionality, sound characteristics, sound performance, advantages, value for money, and conclude with our final thoughts on the Triode TRX-M845 amplifier. So sit back, relax, and prepare to be amazed by the sonic wonders that await you with this remarkable piece of audio engineering.

Technical Specifications

The Triode TRX-M845 amplifier is a high-class power amplifier that offers exceptional performance and versatility. With its impressive technical specifications, this amplifier is sure to meet the needs of even the most discerning audiophiles.

Featuring a Class A power output, the TRX-M845 delivers a robust and clean sound reproduction. Its 280 watts of power ensure that your audio signals are amplified with precision and accuracy, allowing for an immersive listening experience.

When it comes to sound quality, the TRX-M845 excels with its impressive signal-to-noise ratio (SNR) of 90 dB. This means that the amplifier produces minimal background noise, allowing for clear and detailed audio playback. Additionally, the low total harmonic distortion (THD) ensures that the sound remains faithful to the original recording, without any unwanted distortion or coloration.

In terms of connectivity options, the TRX-M845 offers a single RCA input, providing compatibility with various audio sources. It also features four speaker outputs with impedance options of 4, 6, 8, and 16 ohms, allowing for seamless integration with a wide range of speaker systems.

The amplifier supports a frequency response range from 10 Hz to an impressive 500,000 Hz, ensuring that both low and high frequencies are faithfully reproduced. This wide frequency response allows for a dynamic and detailed soundstage.

With its sleek and silver design, the TRX-M845 adds a touch of elegance to any audio setup. Its sturdy construction ensures durability and longevity, while its compact dimensions of 300mm (height), 580mm (width), and 440mm (depth) make it suitable for various installation spaces.

In conclusion, the Triode TRX-M845 amplifier boasts impressive technical specifications that contribute to its outstanding audio performance. With its Class A power output, high SNR, low THD, versatile connectivity options, and wide frequency response range, this amplifier is a top choice for audiophiles seeking exceptional sound quality.

Design and Construction

The Triode TRX-M845 amplifier boasts an exquisite design that exudes elegance and sophistication. Its sleek and silver finish adds a touch of luxury to any audio setup. The attention to detail in its construction is evident, showcasing the craftsmanship that the Japanese company, Triode, is renowned for.

The amplifier is built with high-quality materials, ensuring durability and longevity. The sturdy chassis provides stability and protection for the internal components. The use of premium-grade components further enhances the overall build quality of the amplifier.

One notable design feature of the TRX-M845 is its efficient cooling system. The amplifier incorporates well-designed ventilation channels and heat sinks that effectively dissipate heat, preventing overheating issues during prolonged use. This ensures optimal performance and longevity of the internal components.

Additionally, the TRX-M845 is engineered to minimize interference and noise. Its robust construction helps to shield against external electromagnetic interference, resulting in clean and distortion-free audio playback.

When it comes to connectors and switches, the TRX-M845 doesn’t disappoint. The amplifier is equipped with high-quality connectors that ensure secure and reliable connections with other audio devices. The switches are responsive and provide a satisfying tactile feedback, adding to the overall user experience.

Overall, the design and construction of the Triode TRX-M845 amplifier exemplify a perfect blend of aesthetics and functionality. It not only looks visually appealing but also demonstrates excellent engineering prowess with its efficient cooling system and high-quality connectors and switches.


The Triode TRX-M845 amplifier offers a wide range of functionality that caters to the needs of audiophiles and music enthusiasts. With its versatile connectivity options, this amplifier allows for seamless integration with various audio sources such as CD players, computers, smartphones, and more.

Whether you’re using traditional analog sources or digital devices, the TRX-M845 has got you covered. It features multiple RCA inputs, ensuring compatibility with a variety of audio equipment. This allows you to connect your favorite CD player or turntable directly to the amplifier for an enhanced listening experience.

Additionally, this amplifier provides balance controls and tone adjustments, giving you the flexibility to fine-tune the sound according to your preferences. Whether you prefer a warmer or brighter sound signature, the TRX-M845 allows you to tailor the audio output to suit your individual taste.

Furthermore, this amplifier offers different operating modes, including triode mode. This mode utilizes the 845-ми power tubes (or 211-ые tubes) to deliver a rich and immersive sound experience. The availability of triode mode adds versatility to the amplifier’s performance capabilities and allows for a more personalized listening experience.

Overall, the Triode TRX-M845 amplifier excels in its functionality by providing a wide range of connectivity options and adjustable settings. Whether you’re a vinyl enthusiast or a digital music lover, this amplifier ensures seamless integration with your audio sources while allowing for customization of the sound output to match your preferences.

Sound Characteristics

The Triode TRX-M845 amplifier offers an exceptional sound quality that is sure to captivate any audiophile. With its impressive features and characteristics, this amplifier delivers a truly immersive audio experience.

One of the standout features of the TRX-M845 is its ability to provide incredible detail in the sound reproduction. The amplifier excels at capturing subtle nuances and intricacies in the music, allowing listeners to hear every instrument and note with remarkable clarity. The instrument separation is outstanding, creating a spacious and three-dimensional soundstage that enhances the overall listening experience.

In terms of bass response, the TRX-M845 does not disappoint. It delivers deep, tight, and controlled bass that adds depth and impact to the music. Whether you’re listening to bass-heavy tracks or delicate classical compositions, this amplifier ensures that the low-end frequencies are reproduced with precision and accuracy.

The treble clarity of the TRX-M845 is also worth mentioning. It provides a smooth and detailed high-frequency response without any harshness or sibilance. The highs are crisp and well-defined, adding sparkle and airiness to the music.

When it comes to different music genres, the TRX-M845 performs admirably across the board. Whether you’re listening to rock, jazz, classical, or electronic music, this amplifier brings out the best in each genre. It effortlessly handles complex musical passages with ease, delivering a dynamic and engaging sound that keeps you immersed in the music.

Overall, the sound characteristics of the Triode TRX-M845 amplifier are nothing short of exceptional. Its ability to reproduce intricate details, deliver powerful bass, provide clear treble response, and enhance various music genres make it a top choice for discerning audiophiles who crave an immersive and captivating listening experience.

Sound Performance

The Triode TRX-M845 amplifier delivers an exceptional sound performance that will transport you into a world of audio bliss. With its high-class A-class power amplification and the option to operate in triode mode, this amplifier truly shines in its ability to faithfully reproduce audio signals with unparalleled clarity, dynamics, and tonal balance.

From the moment you press play, the TRX-M845 captivates your senses with its rich and detailed sound reproduction. The amplifier effortlessly handles even the most intricate musical passages, allowing each instrument and vocal to be heard with stunning clarity. The level of detail and resolution is simply breathtaking, revealing nuances and subtleties in the music that may have gone unnoticed before.

One of the standout features of the TRX-M845 is its ability to maintain a balanced and natural sound across different frequency ranges. Whether you’re listening to deep bass lines or soaring high notes, this amplifier ensures that each element of the music is reproduced with precision and accuracy. The bass is tight and controlled, providing a solid foundation to the overall soundstage, while the midrange is lush and transparent, allowing vocals and instruments to shine through with lifelike presence. The highs are crisp and extended, adding sparkle and airiness to the music without any harshness or fatigue.

The dynamics of the TRX-M845 are truly impressive. It effortlessly handles sudden shifts in volume and intensity, bringing out the full emotional impact of the music. Whether it’s a gentle whisper or a powerful crescendo, this amplifier captures every nuance with finesse, creating a truly immersive listening experience.

In addition to its exceptional sound quality, the TRX-M845 also offers versatility in terms of speaker compatibility. With four speaker outputs (4, 6, 8, and 16 ohms), you can easily connect a wide range of speakers to suit your preference.

Overall, the sound performance of the Triode TRX-M845 amplifier is nothing short of remarkable. It combines technical excellence with a musicality that will captivate even the most discerning audiophiles. If you’re looking for an amplifier that can faithfully reproduce your favorite music with stunning clarity, dynamics, and tonal balance, the TRX-M845 is an excellent choice.


The Triode TRX-M845 amplifier offers a multitude of advantages that set it apart from its competitors in the market. Firstly, its high-class A power amplifier design ensures exceptional audio quality and performance. The use of 845 and 6SN7 tubes allows for a rich and detailed sound reproduction, delivering a truly immersive listening experience.

One of the standout advantages of the TRX-M845 is its versatility. With the ability to operate in triode mode and support both 845 and 211 tubes, users have the freedom to customize their sound preferences based on their individual preferences. This flexibility is a significant advantage over other amplifiers in the same price range, as it allows for greater personalization and optimization of the audio output.

Additionally, the TRX-M845 boasts four speaker outputs with different impedance options (4, 6, 8, and 16 Ohms), providing compatibility with various speaker setups. This feature ensures that users can easily connect their preferred speakers without any compatibility issues, making it a highly convenient choice for audiophiles.

Furthermore, the Triode TRX-M845 exhibits superior build quality and durability. Its sleek and stylish design not only enhances its aesthetic appeal but also contributes to its overall robustness. The amplifier’s solid construction guarantees long-lasting performance, making it a reliable investment for audio enthusiasts.

When compared to other models in its price range, the TRX-M845 stands out due to its exceptional sound reproduction capabilities and versatile functionality. Its ability to deliver powerful and accurate sound across a wide frequency range (10 Hz – 500,000 Hz) ensures that every detail of the music is faithfully reproduced. This level of performance surpasses many competitors in terms of clarity, depth, and overall audio quality.

In conclusion, the Triode TRX-M845 amplifier offers numerous advantages that make it a top contender in its category. Its high-class A power amplifier design, versatility in tube options, compatibility with various speaker setups, and superior build quality all contribute to its appeal. When compared to other models in the same price range, the TRX-M845 excels in delivering exceptional sound performance and providing a customizable listening experience. Overall, it is an amplifier that offers great value for money and is highly recommended for audiophiles seeking unparalleled audio quality.

Value for Money

The Triode TRX-M845 amplifier offers exceptional value for money with its outstanding performance, impressive features, and competitive price. When considering the overall package that this amplifier provides, it becomes evident that it offers a compelling proposition for audio enthusiasts.

In terms of performance, the TRX-M845 excels in delivering high-quality sound reproduction. With its Class A power amplifier design and the ability to operate in triode mode, this amplifier ensures a clean and detailed audio output. The use of premium 845 and 211 tubes further enhances the sound quality, providing a rich and immersive listening experience. Additionally, the amplifier’s wide frequency range of 10 Hz to 500,000 Hz allows for accurate reproduction of both low and high-frequency sounds.

The TRX-M845 also boasts an array of features that contribute to its value. The inclusion of four speaker outputs (4, 6, 8, and 16 ohms) provides flexibility in connecting different types of speakers. The presence of a signal level indicator allows users to monitor the input signal strength easily. Furthermore, the amplifier’s sturdy construction and sleek silver color add to its aesthetic appeal.

Considering its price point, the Triode TRX-M845 offers an excellent balance between affordability and performance. Compared to other amplifiers in its class, it provides similar or even superior audio quality at a relatively lower cost. This makes it an attractive option for individuals seeking high-end sound reproduction without breaking the bank.

In conclusion, the Triode TRX-M845 amplifier offers exceptional value for money with its impressive performance, versatile features, and competitive price point. Whether you are a discerning audiophile or a casual music lover, this amplifier delivers an immersive listening experience without compromising on quality. With its combination of outstanding sound characteristics and affordability, the TRX-M845 is undoubtedly a worthwhile investment for anyone seeking a top-notch amplifier.


In conclusion, the Triode TRX-M845 amplifier is a high-class power amplifier that delivers exceptional sound quality and performance. With its unique design, superior craftsmanship, and impressive features, it has quickly gained recognition both within Japan and internationally.

The technical specifications of the TRX-M845 are impressive, with a power consumption of 280 watts and a wide frequency range from 10 Hz to 500,000 Hz. The amplifier is equipped with three 845 tubes, one 6SN7 tube, and one 12AU7 tube, providing excellent audio reproduction. It also offers four speaker outputs at different impedance levels (4, 6, 8, and 16 Ohms), allowing for flexibility in speaker selection.

The design and construction of the TRX-M845 are top-notch. Its sleek silver color adds a touch of elegance to any audio setup. The sturdy build ensures durability and longevity, while the inclusion of a striking indicator adds a visual element to the overall aesthetic.

Functionally, the TRX-M845 excels with its mono configuration and absence of an equalizer or phono corrector. This allows for a pure audio signal path without any unnecessary processing or interference. The presence of a single RCA input provides simplicity in connectivity.

When it comes to sound characteristics, the TRX-M845 truly shines. The amplifier produces rich and detailed sound with excellent clarity across all frequencies. The dynamic range is impressive, capturing every nuance of the music with precision. The signal-to-noise ratio of 90 dB ensures minimal background noise and an immersive listening experience.

In terms of sound performance, the TRX-M845 delivers exceptional audio quality. Whether you’re listening to classical music or rocking out to your favorite rock band, this amplifier will reproduce the music with accuracy and finesse. The power output of 50 watts per channel (8 Ohms) ensures ample volume for most listening environments.

One of the notable advantages of the TRX-M845 is its Japanese craftsmanship. Triode is renowned for its attention to detail and commitment to producing high-quality tube amplifiers. The reliability and build quality of this amplifier are unmatched.

Considering its features, performance, and craftsmanship, the Triode TRX-M845 offers great value for money. While it may be on the higher end of the price spectrum, the investment is well worth it for audiophiles who appreciate superior sound reproduction and exquisite design.

In conclusion, the Triode TRX-M845 amplifier is a remarkable piece of audio equipment that delivers exceptional sound quality and performance. Its outstanding design, impeccable construction, and impressive functionality make it a standout choice for discerning music enthusiasts. If you’re looking for a high-class amplifier that offers unparalleled audio reproduction, the TRX-M845 is an excellent investment that will elevate your listening experience to new heights.

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