Copland CTA 405A: Elevating Audio Excellence


When it comes to experiencing music in its purest form, having a high-quality sound amplifier is essential. The Copland CTA 405A is a stereo amplifier that promises to deliver exceptional audio performance and take your listening experience to new heights. With its combination of classic design elements and cutting-edge technology, this amplifier has garnered a reputation for excellence in the world of hifi sound.

The importance of a good amplifier cannot be overstated. It serves as the heart of any audio system, taking the delicate signals from your source components and amplifying them to drive your speakers with power and precision. Whether you’re a music enthusiast, audiophile, or professional in the audio industry, having an amplifier that can faithfully reproduce the intricacies of your favorite tracks is crucial.

In this review, we will delve into the features, characteristics, and performance of the Copland CTA 405A amplifier. From its technical specifications to its design and construction, we will explore every aspect of this device to provide you with a comprehensive understanding of what it has to offer. So sit back, relax, and prepare to embark on a sonic journey with the Copland CTA 405A amplifier.

Technical Specifications

The Copland CTA 405A amplifier is a full tube stereo amplifier that falls into the Class A category. With its improved design based on the highly acclaimed Copland 405 model, this amplifier combines classic construction techniques with the latest technological advancements to deliver exceptional audio quality.

In terms of power output, the Copland CTA 405A amplifier offers a maximum output of 100 watts, allowing for robust and dynamic sound reproduction. The low levels of feedback contribute to a remarkably accurate and distortion-free music playback experience.

This amplifier features a range of inputs, including five line-level inputs, as well as a “Tape in” and “Tape out” for monitoring recording sessions with devices that have a “pass-through” channel. Additionally, it includes an RIAA phono input, enabling compatibility with both MM (Moving Magnet) and MC (Moving Coil) phono cartridges.

The Copland CTA 405A amplifier boasts an impressive frequency response range, covering from a minimum of 5 Hz to a maximum of 100 kHz. This wide frequency range ensures that every detail and nuance in your music is faithfully reproduced. The amplifier also supports both 4-ohm and 8-ohm speaker configurations, allowing for versatile speaker compatibility.

When it comes to signal quality, the Copland CTA 405A offers a signal-to-noise ratio (SNR) of 90 dB, ensuring minimal background noise and optimal clarity in your audio playback. The total harmonic distortion (THD) is rated at only 0.4%, guaranteeing accurate sound reproduction without noticeable distortion.

In terms of connectivity, this amplifier provides six RCA line-level inputs and one RCA line-level output. This allows for easy integration with various audio sources such as CD players, turntables, or streaming devices. However, it does not include built-in features like USB playback, internet radio, or Wi-Fi connectivity.

Overall, the technical specifications of the Copland CTA 405A amplifier showcase its ability to deliver high-quality sound reproduction with a wide frequency response, low distortion, and versatile connectivity options.

Design and Construction

The Copland CTA 405A amplifier boasts a unique and stylish design that is sure to catch the eye of any audio enthusiast. Encased in a sturdy chassis with a sleek silver or black finish, this amplifier exudes elegance and sophistication. The front panel houses all the necessary buttons and switches for easy control, along with indicator lights that provide visual feedback on the amplifier’s status.

When it comes to construction, the Copland CTA 405A is built to last. The materials used in its construction are of high quality, ensuring durability and longevity. The attention to detail is evident in every aspect of its design, from the solid build to the precise craftsmanship.

One notable design feature of this amplifier is its efficient cooling system. With proper ventilation and heat dissipation mechanisms, the amplifier stays cool even during prolonged use, preventing overheating and ensuring optimal performance.

In terms of reducing interference, the Copland CTA 405A employs advanced shielding techniques to minimize any external noise or interference that could affect the audio signal. This results in a cleaner and more accurate sound reproduction.

The connectors and switches on this amplifier are of excellent quality. They are sturdy and well-built, providing a secure connection for your audio devices. The switches have a satisfying tactile feel, allowing for precise adjustments without any wobbling or looseness.

Overall, the design and construction of the Copland CTA 405A amplifier are top-notch. Its sleek appearance, high-quality materials, efficient cooling system, and reliable connectors make it a standout choice for audiophiles who appreciate both style and functionality.


The Copland CTA 405A amplifier offers a wide range of functionality to cater to various audio sources. With its six RCA inputs, including a dedicated phono input with RIAA correction, you can easily connect your CD player, turntable, or other analog sources. Additionally, the amplifier provides a tape loop for monitoring recordings and a line-level output for connecting to external devices.

In terms of digital connectivity, the CTA 405A does not have built-in USB playback or internet radio capabilities. However, it compensates for this by offering multiple analog inputs that can be utilized with external digital-to-analog converters (DACs) or streaming devices.

This amplifier also features comprehensive control options. While it lacks balance controls, it offers tone adjustments to fine-tune the sound according to your preferences. The presence of tone controls allows you to enhance or attenuate specific frequencies for an optimized listening experience.

Furthermore, the Copland CTA 405A provides a remote control that enables convenient operation from a distance. This allows you to adjust volume levels and switch between different inputs without having to physically interact with the amplifier.

Overall, the functionality of the Copland CTA 405A is robust and versatile, providing ample connectivity options for both analog and digital sources. The inclusion of tone adjustments and a remote control enhances user convenience and customization possibilities.

Sound Characteristics

The Copland CTA 405A amplifier delivers exceptional sound characteristics that will captivate any audiophile. The sound quality is truly remarkable, offering a level of detail and clarity that brings music to life.

One of the standout features of this amplifier is its ability to provide excellent instrument separation. Each instrument is distinct and well-defined, allowing listeners to fully appreciate the nuances and complexities of the music. Whether it’s a symphony orchestra or a small jazz ensemble, the Copland CTA 405A ensures that every instrument is heard with precision and accuracy.

The bass response of this amplifier is deep and powerful, adding weight and impact to the music. It reproduces low frequencies with authority, creating a rich and immersive listening experience. Whether it’s the thumping bass lines in electronic music or the rumbling drums in rock songs, the Copland CTA 405A amplifies the low-end frequencies with impressive control and depth.

On the other end of the spectrum, the treble clarity of this amplifier is exceptional. High frequencies are reproduced with crystal-clear precision, ensuring that every cymbal crash and violin note sparkles with brilliance. The Copland CTA 405A maintains a perfect balance between warmth and detail in the treble range, resulting in an engaging and enjoyable listening experience.

In terms of overall sound presentation, this amplifier offers a natural and transparent sound signature. It faithfully reproduces the original recording without coloration or distortion, allowing listeners to hear music as intended by the artists. The Copland CTA 405A preserves the integrity of the audio signal, delivering a pure and unadulterated sound that is both captivating and immersive.

When it comes to different music genres, the Copland CTA 405A excels across the board. It effortlessly handles classical compositions, bringing out the intricacies of each instrument in an orchestra. It breathes life into jazz performances, allowing listeners to feel the energy and spontaneity of live improvisations. It also shines with rock and pop music, delivering dynamic and impactful sound that makes you want to turn up the volume.

Overall, the sound characteristics of the Copland CTA 405A amplifier are truly exceptional. From its detailed instrument separation to its powerful bass response and crystal-clear treble clarity, this amplifier elevates the listening experience across all genres of music. Whether you’re a classical music enthusiast or a rock aficionado, the Copland CTA 405A will impress with its ability to faithfully reproduce the sound and immerse you in a world of musical bliss.

Sound Performance

The sound performance of the Copland CTA 405A amplifier is nothing short of exceptional. From the moment you press play, it transports you into a world of rich and immersive audio.

One of the standout qualities of this amplifier is its ability to faithfully reproduce audio signals with remarkable clarity. Every instrument and vocal is rendered with precision, allowing you to pick up on even the most subtle details in your favorite tracks. The level of accuracy in the sound reproduction is truly impressive, making for an incredibly engaging listening experience.

The dynamics produced by the Copland CTA 405A are simply breathtaking. It effortlessly handles both quiet passages and explosive crescendos, capturing the full range of emotions conveyed in the music. The amplifier’s dynamic prowess adds a sense of realism and depth to your audio, drawing you further into the performance.

Tonal balance is another area where this amplifier excels. Regardless of whether you’re listening to delicate acoustic melodies or heavy rock anthems, the Copland CTA 405A ensures that each frequency range is reproduced with precision and finesse. The lows are punchy and well-defined, while the mids are warm and detailed. The highs are crisp without ever becoming harsh or fatiguing, resulting in a beautifully balanced soundstage.

Whether you’re a fan of classical music, jazz, rock, or any other genre, the Copland CTA 405A delivers an audio performance that will leave you captivated. Its ability to accurately reproduce audio signals across different frequency ranges ensures that every genre sounds its best.

In conclusion, the sound performance of the Copland CTA 405A amplifier is nothing short of extraordinary. With its clarity, dynamics, and tonal balance, it creates an immersive listening experience that will satisfy even the most discerning audiophiles. If you’re looking for an amplifier that can bring your music collection to life with exceptional fidelity and precision, then look no further than the Copland CTA 405A.


The Copland CTA 405A amplifier offers several key advantages that set it apart from its competitors in the market. Firstly, its use of high-quality components and advanced technology ensures exceptional audio performance. The amplifier utilizes KT120 vacuum tubes for increased dynamic range and accurate sound reproduction. This combination of classic design and modern advancements results in a truly immersive listening experience.

Additionally, the CTA 405A boasts a wide frequency range, spanning from a minimum of 5Hz to an impressive maximum of 100kHz. This expansive range allows for detailed and precise audio reproduction across the entire spectrum, capturing even the subtlest nuances in the music.

Another advantage of this amplifier is its versatility in connectivity options. With five linear inputs, including “Tape in” and “Tape out,” users can easily integrate various audio sources into their system. Furthermore, the inclusion of a phono stage with an RIAA equalizer allows for seamless compatibility with both MM and MC cartridges, catering to vinyl enthusiasts.

In terms of design and construction, the Copland CTA 405A exudes elegance and sophistication. It features a sleek chassis available in silver or black finishes, complemented by intuitive controls and indicator lights on the front panel. The amplifier also comes with a remote control for convenient operation.

When comparing the CTA 405A to other models in its price range, it stands out for its exceptional build quality and attention to detail. The use of premium components ensures longevity and reliability, while the amplifier’s powerful output of 100W per channel at 8 ohms guarantees ample power to drive a wide range of speakers.

Overall, the Copland CTA 405A offers a unique combination of superior audio performance, versatile connectivity options, and elegant design. Its ability to provide an accurate and immersive listening experience, along with its robust construction, makes it a standout choice in its price range.

Value for Money

The Copland CTA 405A amplifier offers exceptional value for money with its outstanding performance, extensive features, and reasonable price point. When considering the overall package that this amplifier provides, it is clear that it offers a compelling proposition for both audio enthusiasts and professionals alike.

In terms of performance, the CTA 405A delivers a remarkable audio experience. With a power output of 100W and a wide frequency range from 5Hz to 100kHz, this amplifier ensures accurate and detailed sound reproduction across the entire spectrum. The use of high-quality KT120 vacuum tubes further enhances the audio quality, allowing for a dynamic and immersive listening experience without compromising on clarity.

The amplifier’s extensive features also contribute to its value. It includes five linear inputs, including a dedicated phono input with an RIAA phono stage for compatibility with MM and MC cartridges. Additionally, the inclusion of “Tape in” and “Tape out” connections allows for easy monitoring of recordings through devices with a “pass-through” channel. These features provide versatility and convenience for users with various audio sources and recording needs.

Considering its price point, the Copland CTA 405A offers exceptional value compared to other amplifiers in its class. With its premium build quality, attention to detail in design, and advanced technical achievements, this amplifier competes favorably with higher-priced options on the market. The inclusion of a remote control further adds to its convenience and user-friendly operation.

Overall, the Copland CTA 405A amplifier represents excellent value for money. Its impressive performance, extensive features, and reasonable price make it an attractive choice for audiophiles seeking high-quality sound reproduction without breaking the bank. Whether you are a music enthusiast or a professional seeking reliable and accurate audio amplification, this amplifier delivers on all fronts while offering great value for your investment.


In conclusion, the Copland CTA 405A amplifier is a remarkable piece of audio equipment that combines classic design with modern technological advancements. Its high-quality construction and attention to detail make it a standout choice for audiophiles seeking an exceptional listening experience.

The amplifier’s technical specifications are impressive, with a power output of 100W and a wide frequency range from 5Hz to 100kHz. The use of KT120 tubes with extended capabilities enhances the dynamic range, resulting in incredibly accurate and distortion-free music reproduction. The inclusion of a phono stage allows for compatibility with both MM and MC cartridges, catering to vinyl enthusiasts.

Design-wise, the Copland CTA 405A exudes elegance with its sleek silver or black finish. The front panel houses all the necessary controls and indicators, while the rear panel provides convenient connectivity options. Additionally, the included remote control adds convenience to the overall user experience.

Functionally, this amplifier offers five line inputs, including “Tape in” and “Tape out,” allowing for easy monitoring of recordings. The absence of built-in features such as a USB player or DAC may be seen as a drawback for some users; however, the focus on pure amplification ensures optimal performance.

When it comes to sound characteristics, the Copland CTA 405A delivers exceptional clarity and precision. With a signal-to-noise ratio of 90dB and low non-linear distortion of 0.4%, it reproduces music faithfully without any unwanted artifacts. The amplifier’s ability to handle both low and high frequencies with finesse further enhances the overall listening experience.

In terms of sound performance, the Copland CTA 405A truly shines. It effortlessly drives speakers with its ample power output, providing a rich and immersive soundstage. Whether you’re listening to delicate acoustic melodies or energetic rock anthems, this amplifier captures every nuance and detail with finesse.

Advantages of the Copland CTA 405A include its exceptional build quality, versatile phono stage, and impressive sound reproduction. While it may lack certain modern features like internet connectivity or Bluetooth, it compensates with its unwavering focus on delivering pure and high-quality audio.

In terms of value for money, the Copland CTA 405A is an investment that will undoubtedly satisfy even the most discerning audiophiles. Its premium construction, outstanding sound performance, and versatility make it a worthy addition to any high-end audio setup.

In conclusion, the Copland CTA 405A amplifier is a testament to the brand’s commitment to excellence in audio reproduction. Its combination of classic design elements and cutting-edge technology results in an amplifier that delivers unparalleled sound quality. If you’re seeking a truly immersive listening experience with exceptional clarity and precision, the Copland CTA 405A is an amplifier worth considering.

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