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Power amplifiers mono — Line Magnetic Audio VT-91A

Description, images, technical data and specifications

Line Magnetic Audio VT-91A
Image source — © Line Magnetic Audio

The Line Magnetic VT-91A is a compact tube mono power amplifier, supplied as a single-channel unit so that a pair is used for stereo. Its name refers to the classic 91-type single-ended amplifier layout.

Key specs that matter

Rated output is 6 W into 8 ohms. Both balanced and single-ended inputs present a 100 kOhm impedance, and the frequency response is listed as 20 Hz to 20 kHz at -3 dB.

Engineering and use context

Each chassis measures 215 x 225 x 460 mm and weighs 10.3 kg, a narrow footprint that allows the two monoblocks to sit close to the loudspeakers. The low output favours high-sensitivity speakers in a modest room.

Specifications

  • Model name

    VT-91A

  • Input sensitivity (mV)

    N/A

  • Input impedance (balanced) (Ω)

    100 000

  • 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)

    6

  • Output power (4Ω) (W)

    N/A

  • Gain (dBu)

    N/A

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

    20

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

    20 000

  • Signal to Noise Ratio (dB)

    N/A

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

    N/A

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

    N/A

  • Max power consumption (W)

    N/A

  • Damping factor

    N/A

  • Dimensions (mm)

    215 x 225 x 460

  • Weight (kg)

    10.3

  • Official link

    https://line-magnetic.eu/collections/all

Line Magnetic Audio AS-134

Line Magnetic Audio LM-41.2-212

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