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Power amplifiers stereo — PS Audio PMG Signature S400

Description, images, technical data and specifications

PS Audio PMG Signature S400
Image source — © PS Audio

PMG Signature Series S400 is a premium high-power audio amplifier designed to deliver exceptional clarity, precision, and dynamic performance. Featuring advanced circuitry, low distortion, and stable operation, it provides rich, detailed sound with excellent control, making it ideal for demanding hi-fi and professional audio systems.

Specifications

  • Model name

    PMG Signature S400

  • Input sensitivity (mV)

    2000

  • Input impedance (balanced) (Ω)

    200 000

  • Input impedance (single-ended) (Ω)

    100 000

  • Output impedance (balanced) (Ω)

    N/A

  • Output impedance (single-ended) (Ω)

    N/A

  • Max current (A)

    N/A

  • Output power (8Ω) (W)

    200

  • Output power (4Ω) (W)

    400

  • Gain (dBu)

    26.2

  • Frequency response low +/- 3dB (Hz)

    10

  • Frequency response high +/- 3dB (Hz)

    80 000

  • Signal to Noise Ratio (dB)

    N/A

  • Total Harmonic Distortion + Noise (0% global feedback) (%)

    N/A

  • Total Harmonic Distortion + Noise (100% global feedback) (%)

    <0,002

  • Max power consumption (W)

    N/A

  • Damping factor

    240

  • Dimensions (mm)

    406,4 × 444,5 × 203,2

  • Weight (kg)

    25.9

  • Official link

    https://www.psaudio.com/products/pmg-s400

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