INTRODUCTION

Thank you for purchasing this Cambridge Audio azur series amplifier. It is the result of our most extensive ever research and development program in over three decades of producing high quality audio products. We hope that you will appreciate the results and enjoy many years of listening pleasure.

About this amplifier

The design of a high quality but cost-effective audio amplifier presents a major challenge. Providing first-class performance on an unlimited budget is one matter; achieving the same performance within tight price limits is quite another, and requires the expertise and experience that Cambridge Audio brings to its product design process. We believe we have succeeded in our aim of creating a first-class affordable amplifier.

The wide bandwidth of this amplifier is ideal for the new "better than CD" high bandwidth sources such as DVD-audio and Super Audio CD.

The power amplifier stages follow the same basic architecture that Cambridge Audio have used in previous award-winning amplifiers, with refinements to match it to its exact application in the Azur 340A. The power amplifier input circuitry uses dual differential pairs, linearly buffered from the input to establish optimal operating conditions. A carefully controlled amount of local negative feedback is used in this stage to define the stability margins so that any reactive load may be driven effortlessly.

The output stage uses large-area silicon devices, with exceptionally rapid thermal compensation to maintain correct output stage conditions and so prevent crossover distortion, even under widely varying drive conditions.

2azur integrated amplifier

The power amplifiers incorporate an electronic muting system that reacts extremely quickly and allows the complete suppression of switching clicks, such as may occur when changing inputs or turning the amplifier on and off.

The power supply is a vital part of a power amplifier. The Azur 340A power amplifiers are fed from a power supply of elegant simplicity that avoids the complications and uncertainties of regulated supplies. A toroidal transformer selected for low external magnetic field, is used in conjunction with generously specified reservoir capacitors and optimally placed decoupling components.

Close attention has been paid to the performance and quality of the passive components used, both in the signal paths and for decoupling purposes.

The Cambridge Audio Azur 340A incorporates tone controls that give vernier control of the frequency response, allowing the correction of dubious source material, and compensation for loudspeaker inadequacies or problems with room acoustics. These tone controls can be switched completely out of the audio path by use of the DIRECT switch, to give the shortest possible audio path. Other features include 24-carat gold-plated phono sockets, a tape send/return loop, a headphone socket, and a second set of switchable loudspeaker outputs.

The Cambridge Audio Azur 340A has full protection against misuse and possible faults. The overload and short-circuit protection systems continuously monitor the voltage, current and temperature of the output devices, allowing the protection to act positively in case of genuine need, but never triggering spuriously.

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Cambridge Audio 340A user manual Introduction, About this amplifier
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340A specifications

The Cambridge Audio 340A is a well-regarded integrated amplifier that captures the essence of high-fidelity sound, appealing to both audiophiles and casual listeners alike. This amplifier is a part of the popular Azur series, which is known for its combination of premium quality and affordability.

One of the standout features of the Cambridge Audio 340A is its power output. With 50 watts per channel into 8 ohms, it is capable of driving a wide range of speakers, ensuring a dynamic audio experience across various genres of music. The amplifier’s low distortion levels contribute to clear and articulate sound reproduction, making it an ideal choice for those who prioritize audio clarity.

The 340A incorporates advanced audio technologies, including a toroidal transformer, which aids in minimizing electrical noise and improving overall efficiency. This transformer design not only enhances the amplifier's performance but also contributes to a more compact and manageable unit, allowing for easy integration into any audio setup.

Another notable characteristic is the extensive connectivity options offered by the 340A. It features multiple line-level inputs, allowing users to connect various sources such as CD players, turntables, and streaming devices seamlessly. Additionally, it includes a dedicated phono stage, making it particularly appealing to vinyl enthusiasts who desire high-quality sound from their record collections.

The design of the Cambridge Audio 340A is both functional and elegant, with a minimalist front panel that includes a volume knob, input selector, and an LED power indicator. Its rugged build quality ensures durability, while its stylish appearance blends well with modern audio equipment.

The amplifier also includes tone controls that allow users to adjust bass and treble levels according to their personal preferences. This feature adds an extra layer of customization, enabling listeners to tailor the sound to their liking based on their listening environment.

In summary, the Cambridge Audio 340A is a versatile and high-performing integrated amplifier that boasts a powerful output, excellent sound quality, advanced technologies, and a user-friendly design. Its combination of features makes it an outstanding choice for anyone looking to enhance their audio experience without breaking the bank.
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