Quad sound systems have always provided high levels of listening pleasure to their owners. Our philosophy has always been one of reproducing the ‘live’ experience in the comfort of your own home.

Whilst many modern amplifiers are stunningly accurate and offer breathtaking resolution and distortion figures in tiny fractions of a percent, many also loose sight of the overall aim - which for Quad, is to bring pleasure to the listener by recreating the entire range of sensory experiences felt at a live performance.

For many audiophiles, just as vinyl will never be truly replaced by digital music, the vacuum tube communicates on an emotional level that can never really be surpassed by a transistor based design.

The Quad II classic is one of the finest of these vacuum tube amplifiers. Although small in dimension and modest in design, the purity with which it conveys, not just the musical score, but the sense of space; the passion of the vocal and the range of textures from the instruments in any performance, is without peer.

As a piece of audio history, the Quad II circuit was pivotal in creating what we know of as genuine ‘hi-fi’ today. As a design statement, the Quad II is not only as relevant today is it was over fifty years ago, it is remarkable in its absolute longevity. Yet the only important factor is that the Quad II Classic can bring the same pleasure to today’s discerning customer that has been experienced by generations of Quad enthusiasts.

“The Quad II Classic uses the finest quality components, each hard wired onto a robust chassis with solder tags..”

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QUAD Vaccume Tube Amplifier Systems manual
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Vaccume Tube Amplifier Systems specifications

QUAD Vacuum Tube Amplifier Systems represent a remarkable blend of vintage audio engineering and modern technology. Known for their warm, rich sound and characteristically smooth midrange, these amplifiers appeal to audiophiles and music enthusiasts alike. The heart of these systems lies in the use of vacuum tubes, a technology that offers unique audio qualities distinct from solid-state components.

One of the main features of QUAD Vacuum Tube Amplifiers is their power output versatility. Typically, these amplifiers provide outputs ranging from a few watts to over 30 watts, suitable for driving a variety of speakers effectively. This low-power design is particularly advantageous for small to medium-sized listening rooms, where subtle nuances in music can be appreciated in high fidelity.

The construction quality of QUAD amplifiers is another standout characteristic. These devices are meticulously handcrafted using high-grade materials, ensuring durability and longevity. Many models feature eye-catching designs that harken back to classic tube amplifiers, complete with robust chassis and vintage-style knobs, creating an aesthetic appeal that complements any audio setup.

In terms of technology, QUAD employs advanced circuitry to enhance sound quality. Their amplifiers often incorporate low-feedback designs, which preserve the dynamic range and authenticity of recordings. This approach reduces distortion, allowing the listener to experience music as it was intended. Certain models also utilize push-pull output stages to maximize efficiency and deliver clearer sound reproduction.

QUAD is also committed to ensuring user-friendliness in their vacuum tube amplifiers. Typically equipped with intuitive controls and indicators, these systems make it easy for users to adjust volume levels and input sources effortlessly. Additionally, many models allow for tube rolling, where audiophiles can experiment with various vacuum tube types to tailor the sound to their personal preferences.

Overall, QUAD Vacuum Tube Amplifier Systems offer a unique listening experience characterized by their rich tonal qualities, impressive power capabilities, and elegant craftsmanship. Their dedication to high-quality acoustics and advanced technologies positions them as a coveted choice in the realm of high-fidelity audio equipment, ensuring that music lovers can enjoy their favorite tracks with unparalleled warmth and depth.
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