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Accuphase A-48 STEREO POWER AMPLIFIER

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    Categories: Audio, Power Amplifiers, Receivers & Amplifiers SKU: A-48

    Featuring a six-fold parallel push-pull architecture with power MOS-FETs, as well as ideal gain allocation realized with discrete semiconductors in an instrumentation amplifier configuration, the A-48 harnesses a wealth of advanced technology. Its outstanding performance is exemplified by a signal/noise ratio of 117 dB, output of 360 watts into 1 ohm (music signals), and a damping factor of 800. The newly designed output protection circuit can detect any short-circuiting of the speaker terminals, for complete peace of mind. This power amplifier is the ultimate instrument for immersive music appreciation on the highest level.

    Power MOS-FETs in 6-parallel push-pull configuration
    Linear output characteristics over entire load impedance range
    Strong power supply with massive toroidal transformer and large 60,000 μF filtering capacitors
    Instrumentation amplifier principle
    High-gain signal input section in discrete configuration
    Dedicated power supply for signal input section
    Polarity switching for balanced input connectors
    MCS+ circuit topologys
    Current feedback principle in amplification circuitry
    Protection circuitry using MOS-FET switches
    High damping factor of 800
    Speaker output protection circuit guards against short-circuiting
    Two sets of large speaker terminals
    4-step gain control
    Support for bi-amping and bridged mode
    Aluminum top plate with hairline finish

    Features & Specifications

    A-48 Features

    • Pure Class A stereo power amplifier with outstanding S/N ratio and very high damping factor
    • Rated for 45 watts into 8 ohms and 360 watts into 1 ohm
    • Power MOS-FETs in 6-parallel push-pull configuration
    • Linear output characteristics over entire load impedance range
    • Strong power supply with massive toroidal transformer and large 60,000 μF filtering capacitors
    • High-gain signal input section in discrete configuration
    • Instrumentation amplifier principle
    • Dedicated power supply for signal input section
    • All signal paths realised with discrete semiconductor components
    • Balanced Remote Sensing
    • MCS+ circuit topology
    • Current feedback amplification principle
    • Speaker output protection circuit guards against short-circuiting
    • Line and balanced input connectors
    • Highly responsive large peak power meters
    • Two sets of large speaker terminals
    • 4-step gain control
    • Support for bi amplification and bridged mode
    • Aluminium top plate with hairline finish

    A- 48 Specifications

    • Power output: 45 watts per channel into 8Ω (stereo), 180W into 8Ω (mono)
    • Frequency response: 20Hz to 20kHz
    • Total harmonic distortion: 0.03%
    • Damping factor: 800
    • Gain: 28 dB
    • Input sensitivity: 0.87VSignal to noise ratio: 117dB
    • Speaker load impedance: 2Ω to 16Ω
    • Dimensions: 465 x 211 x 464mm
    • Weight: 33kg Net
    • Year: 2019

    Reviews

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