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Linn CHAKRA Power Centre
Linn Products Ltd is pleased to announce the arrival of Linn CHAKRA: an original and innovative new high-efficiency, ultra-linear power amplification audio circuit topology.
Monolithic (single-chip) circuits are, in principle, the optimum way to design the direct signal path circuitry within a high-performance power amplifier. With a monolithic design all of the required audio circuitry is contained within a few square millimetres of silicon, minimising circuit area for the shortest possible signal path, making them inherently less susceptible to unwanted interference and enabling the amplifier to operate at higher speeds. They also accommodate circuit complexity which is not practical with a discrete design, and offer high-performance through tightly controlled and matched device behaviours.
However, monolithic topologies do present technical challenges, which, while not insurmountable, can compromise the potential of the design. The most significant of these is output current, which is limited due to both the compactness of the circuitry and the chip fabrication process, typically resulting in unwanted distortion at high listening levels. Monolithic designs also have a tendency to be less rugged than a well-crafted discrete design.
Linn’s latest CHAKRA topology is the result of more than 5 years of continuous development of Linn’s high-power monolithic amplifier audio circuits. The CHAKRA topology uses an array of large bi-polar transistors as ‘boosters’ around a single monolithic. While this in itself is not a new idea, Linn’s execution of the monolithic to bi-polar transition is unique, and a patent application for the design has been submitted. When output current is less than a few amps, all of the power output comes from the monolithic, maximising the speed and linearity properties of this design. At higher output currents the bi-polars provide the majority of the output current, leaving the monolithic to operate well within its capability, able to correct any error instantaneously. Even under extreme overload conditions, like short circuit, the monolithic never delivers more than a fraction of its safe output, while separate circuitry protects the bi-polars, and so with safe current output virtually unlimited, CHAKRA offers low-frequency response down to near DC. It is also highly efficient, running cooler than any previous Linn amplifier design.
Από το site της εταιρείας
Linn Products Ltd is pleased to announce the arrival of Linn CHAKRA: an original and innovative new high-efficiency, ultra-linear power amplification audio circuit topology.
Monolithic (single-chip) circuits are, in principle, the optimum way to design the direct signal path circuitry within a high-performance power amplifier. With a monolithic design all of the required audio circuitry is contained within a few square millimetres of silicon, minimising circuit area for the shortest possible signal path, making them inherently less susceptible to unwanted interference and enabling the amplifier to operate at higher speeds. They also accommodate circuit complexity which is not practical with a discrete design, and offer high-performance through tightly controlled and matched device behaviours.
However, monolithic topologies do present technical challenges, which, while not insurmountable, can compromise the potential of the design. The most significant of these is output current, which is limited due to both the compactness of the circuitry and the chip fabrication process, typically resulting in unwanted distortion at high listening levels. Monolithic designs also have a tendency to be less rugged than a well-crafted discrete design.
Linn’s latest CHAKRA topology is the result of more than 5 years of continuous development of Linn’s high-power monolithic amplifier audio circuits. The CHAKRA topology uses an array of large bi-polar transistors as ‘boosters’ around a single monolithic. While this in itself is not a new idea, Linn’s execution of the monolithic to bi-polar transition is unique, and a patent application for the design has been submitted. When output current is less than a few amps, all of the power output comes from the monolithic, maximising the speed and linearity properties of this design. At higher output currents the bi-polars provide the majority of the output current, leaving the monolithic to operate well within its capability, able to correct any error instantaneously. Even under extreme overload conditions, like short circuit, the monolithic never delivers more than a fraction of its safe output, while separate circuitry protects the bi-polars, and so with safe current output virtually unlimited, CHAKRA offers low-frequency response down to near DC. It is also highly efficient, running cooler than any previous Linn amplifier design.
Από το site της εταιρείας
