QII Classic
The rekindled interest in 2 channel analogue hi-fi has been remarkable to witness. The popularity of vinyl has grown steadily over the last 5 years and now represents a significant proportion amongst real music enthusiasts. Quad has been at the foref...
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Specifications
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Country (main office)
United Kindgdom
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Type
integrated amplifier
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Color
Lancaster Grey
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Gain channels
2
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Headphone output
no
All specifications
Quad QII Classic Integrated Tube Amplifier Lancaster Grey
The rekindled interest in 2 channel analogue hi-fi has been remarkable to witness. The popularity of vinyl has grown steadily over the last 5 years and now represents a significant proportion amongst real music enthusiasts. Quad has been at the forefront of this trend with its development of some of the world's most stunning amplifiers, loudspeakers and phono stages. Creating a solution for LP and Vintage Hi-End Audio lovers while working in collaboration with one of the industry's esteemed legendary figures, Tim DeParavicini.
Through his contemporary designs based on Quad's novel amplifier technology developed over half a century ago for his invention of the first Quad II Mono Amplifier introduced in 1953, Quad classic range of amplifier and speaker components represent far more than a nostalgic trip down memory lane. Each product represents as significant a design statement as their original counterparts.
The Quad II Classic Integrated Amplifier is a perfectly balanced and completely integrated amplifier system to resolve system matching and offer exceptional performance and value within a relatively compact and classically styled chassis.
The preamp section delivers three line inputs, plus full tape monitoring. Every detail is engineered to the highest standard; even the built-in phono stage is of higher quality than many costly standalone devices, ensuring that every musical source, from vinyl to digital, is delivered with exceptional panache. It stays true to the original Quad II monoblocks in its push-pull KT66 output configuration and single-tap output transformers, yet it’s actually twice as powerful – rated at 25W per channel.
Basic
Country (main office)
United Kindgdom
Type
integrated amplifier
Lamp model
4 x KT66, 4 x 12AX7, 2 x 6922EH
Maximum frequency, Hz
20000
Signal-to-noise ratio, dB
98
THD (Total Harmonic Distorsions), %
0.06
Features
Separate terminals for different impedances
no
Functions
Support RDS (FM radio)
no
Inputs
Input level adjustment
no
Power
Power per channel (8 ohm), W
25
Wireless connection
Dimensions
About brand
Quad
The history of Quad is one of technical achievement in the field of sound reproduction. It is a story that began with the Quad 1 amplifier, which brought the benefits of 15 years knowledge and experience in professional audio and industrial products to the task of making the most accurate domestic audio amplifier of its age.A few years later, in 1953, the product which set the standard for amplifiers was the Quad II Power Amplifier, the time of Queen Elizabeth’s Coronation and the year in which Mount Everest was finally conquered. This amplifier pioneered the principle of cathode coupling through the output transformer to reduce harmonic distortion to almost negligible levels. Such was its clear superiority that this model remained in production for 18 years. Three years later, in 1956, Quad demonstrated the first true full-range electrostatic loudspeaker. This remarkable product (known later as the ESL 57) used a virtually mass-less plastic film as a moving diaphragm between two charged plates. Compared with moving coil loudspeakers, the ESL 57 was free of unwanted colourations and distortions. This landmark product remained in production, virtually unchanged, for 28 years.
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